LD1117芯片规格书
LT1117-1.8 中文资料
封装 SOT-223
打印名称
产品名称
AMS1117-ADJ AMS1117-1.2 AMS1117-1.5 AMS1117-1.8 AMS1117-2.5 AMS1117-2.85 AMS1117-3.0 AMS1117-3.3 AMS1117-5.0
AMS1117-ADJ AMS1117-1.2 AMS1117-1.5 AMS1117-1.8 AMS1117-2.5 AMS1117-2.85 AMS1117-3.0 AMS1117-3.3 AMS1117-5.0
封装 TO-252-2L TO-263-3L
打印名称
AMS1117-ADJ AMS1117-1.2 AMS1117-1.5 AMS1117-1.8 AMS1117-2.5 AMS1117-2.85 AMS1117-3.0 AMS1117-3.3 AMS1117-5.0 AMS1117-2.85 AMS1117-3.0 AMS1117-3.3 AMS1117-5.0
AMS1117内部集成过热保护和限流电路，是电池供电 和便携式计算机的最佳选择。
SOT-223
SOT-89-3
TO-220-3L
特点
TO-263-3L
TO-252-2L
* 固定输出电压为 1.5V、1.8V、2.5V、2.85V、3.0V、 3.3V、5.0V 和可调版本，具有 1％的精度
* 固定输出电压为 1.2V 的 精度为 2％ * 低漏失电压：1A 输出电流时仅为 1.2V * 限流功能 * 过热切断 * 温度范围：-40°C~ 125°C
V
0≤IOUT≤1A, 4.25V≤VIN ≤10V
2.790 2.850 2.910
0≤IOUT≤500mA, VIN =4.10V
lm1117有几个管脚- 芯片LM1117的功能
lm1117有几个管脚? 芯片LM1117的功能
本文主要是关于lm1117的相关介绍，并着重对lm1117的管脚及其功能进行了详尽的阐述。
LM1117概述
LM1117提供电流限制和热保护。
电路包含1个齐纳调节的带隙参考电压以确保输出电压的精度在±1%以内。
LM1117系列具有LLP、TO-263、SOT-223、TO-220和TO-252 D-PAK 封装。
输出端需要一个至少10uF的钽电容来改善瞬态响应和稳定性。
替换型号
X1117是IC网络超市自主的品牌，可以很好的替换LM1117。
X1117是一款正电压输出的低压降三端线性稳压电路，在1A输出电流下的压降为1.2V。
分为两个版本，固定电压输出版本和可调电压输出版本。
固定输出电压1.5V、1.8V、2.5V、3.3V、5.0V和可调版本的电压精度为1%；固定电压为1.2V的产品输出电压精度为2%。
内部集成过热保护和限流电路，适用于各类电子产品。
A1117是台湾亿光研发生产的高效率低压降三端线性稳压器，A1117提供电流限制和热保护，以确保芯片和功率稳定性系统。
而在芯片上保证输出电压精度在±2%。
同时也提供了固定电压输出版本和可调电压输出版本，可调版本能输出从1.25V到13.8V。
其他
特性
提供1.8V、2.5V、2.85V、3.3V、5V和可调电压的型号
节省空间的SOT-223和LLP封装
电流限制和热保护功能
输出电流可达800mA
线性调整率：0.2% （Max）
负载调整率：0.4% （Max）
温度范围。
LD1117调压和固定低落电压电源器件数据手册说明书
LD1117DT33CTR LD1117S50CTR LD1117STR LD1117S33TRThis is information on a product in full production.February 2020DocID2572 Rev 371/46LD1117Adjustable and fixed low drop positive voltage regulatorDatasheet - production dataFeatures•Low dropout voltage (1 V typ.)• 2.85 V device performances are suitable for SCSI-2 active termination •Output current up to 800 mA•Fixed output voltage of: 1.2 V, 1.8 V, 2.5 V, 3.3V, 5.0 V •Adjustable version availability (V REF = 1.25 V)•Internal current and thermal limit•Available in ± 1 % (at 25 °C) and 2 % in full temperature range •Supply voltage rejection: 75 dB (typ.)DescriptionThe LD1117 is a low drop voltage regulator able to provide up to 800 mA of output current, available even in adjustable version(V REF =1.25V). Concerning fixed versions, are offered the following output voltages: 1.2 V, 1.8 V, 2.5 V, 2.85 V, 3.3 V and 5.0 V. The device is supplied in: SOT-223, DPAK, SO-8 and TO-220. The SOT-223 and DPAK surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor. In fact in this case, unlike than PNP one, the quiescent current flows mostly into the load. Only a very common 10 µF minimum capacitor is needed for stability. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1 % at 25 °C. The adjustable LD1117 is pin to pin compatible with the other standard. Adjustable voltage regulators maintaining the better performances in terms of drop and tolerance.Contents LD11172/46DocID2572 Rev 37Contents1Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 7LD1117 adjustable: application note . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 8Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 9Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 10Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 11Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45DocID2572 Rev 373/46LD1117List of tablesList of tablesTable 1.Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Table 2.Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Table 3.Electrical characteristics of LD1117#12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Table 4.Electrical characteristics of LD1117#18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Table 5.Electrical characteristics of LD1117#25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Table 6.Electrical characteristics of LD1117#33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Table 7.Electrical characteristics of LD1117#50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Table 8.Electrical characteristics of LD1117 (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Table 9.Electrical characteristics of LD1117#12C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Table 10.Electrical characteristics of LD1117#18C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Table 11.Electrical characteristics of LD1117#25C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Table 12.Electrical characteristics of LD1117#33C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Table 13.Electrical characteristics of LD1117#50C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Table 14.Electrical characteristics of LD1117C (adjustable). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Table 15.TO-220 mechanical data (type STD-ST Dual Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Table 16.TO-220 mechanical data (type STD-ST Single Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Table 17.SOT-223 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Table 18.SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Table 19.DPAK (TO-252) mechanical data (type A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Table 20.DPAK (TO-252) mechanical data (type E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Table 21.DPAK (TO-252) mechanical data type I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Table 22.Footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Table 23.SOT-223 tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Table 24.SO-8 tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Table 25.DPAK tape and reel mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Table 26.Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Table 27.Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45List of figures LD11174/46DocID2572 Rev 37List of figuresFigure 1.Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 2.Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3.Application circuit (for 1.2 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 4.Application circuit (for other fixed output voltages). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 5.Negative supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 6.Circuit for increasing output voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 7.Voltage regulator with reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 8.Battery backed-up regulated supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 9.Post-regulated dual supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 10.Adjustable output voltage application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 11.Adjustable output voltage application with improved ripple rejection . . . . . . . . . . . . . . . . . 24 Figure 12.Drawing dimension TO-220 (type STD-ST Dual Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 13.Drawing dimension TO-220 (type STD-ST Single Gauge). . . . . . . . . . . . . . . . . . . . . . . . . 28 Figure 14.Drawing dimension SOT-223 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Figure 15.Drawing dimension SO-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Figure 16.DPAK (TO-252) package outline A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Figure 17.DPAK (TO-252) package outline E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Figure 18.DPAK (TO-252) package outline I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Figure 19.DPAK footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Figure 20.Drawing dimension tube for TO-220 Dual Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Figure 21.Drawing dimension tube for TO-220 Single Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . 38 Figure 22.Tape for SOT-223 (dimensions are in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Figure 23.Reel for SOT-223 (dimensions are in mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Figure 24.SO-8 tape and reel dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Figure 25.Tape for DPAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Figure 26.Reel for DPAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43DocID2572 Rev 375/46LD1117Diagram1DiagramPin configuration LD11176/46DocID2572 Rev 372 Pin configuration Note:The TAB is connected to the V OUT.DocID2572 Rev 377/46LD1117Maximum ratings3 Maximum ratingsTable 1. Absolute maximum ratingsSymbol ParameterValue Unit V IN (1)1.Absolute maximum rating of V IN = 18 V, when I OUT is lower than 20 mA.DC input voltage 15V P TOT Power dissipation12W T STG Storage temperature range-40 to +150°C T OPOperating junction temperature rangefor C version -40 to +125°C for standard version0 to +125°CTable 2. Thermal dataSymbol ParameterSOT-223SO-8DPAK TO-220Unit R thJC Thermal resistance junction-case 152085°C/W R thJAThermal resistance junction-ambient1105510050°C/WSchematic application LD11178/46DocID2572 Rev 374 Schematic applicationDocID2572 Rev 379/46LD1117Electrical characteristics5 Electrical characteristicsRefer to the test circuits, T J = 0 to 125 °C, C O = 10 µF, R = 120 Ω between GND and OUT pins, unless otherwise specified.Table 3. Electrical characteristics of LD1117#12Symbol ParameterTest conditionMin.Typ.Max.Unit V O Output voltage V in = 3.2 V, I O = 10 mA, T J = 25 °C 1.188 1.20 1.212V V O Output voltage I O = 10 to 800 mA V in - V O = 1.4 to 10 V1.1401.20 1.260V ∆V O Line regulation V in - V O = 1.5 to 13.75 V, I O = 10 mA 0.0350.2%∆V O Load regulation V in - V O = 3 V, I O = 10 to 800 mA 0.10.4%∆V O Temperature stability 0.5%∆V O Long term stability 1000 hrs, T J = 125 °C 0.3%V in Operating input voltage 15V I adj Adjustment pin current V in ≤ 15 V60120µA ∆I adj Adjustment pin current change V in - V O = 1.4 to 10 V I O = 10 to 800 mA 15µA I O(min)Minimum load current V in = 15 V25mA I O Output current V in - V O = 5 V, T J = 25 °C 8009501300mA eN Output noise (%V O ) B = 10 Hz to 10 kHz, T J = 25 °C 0.003%SVRSupply voltage rejectionI O = 40 mA, f = 120 Hz, T J = 25 °C V in - V O = 3 V, V ripple = 1 V PP 6075dBV dDropout voltageI O = 100 mA 1 1.1VI O = 500 mA 1.05 1.15I O = 800 mA1.10 1.2Thermal regulationT a = 25 °C, 30 ms Pulse0.010.1%/W10/46DocID2572 Rev 37Refer to the test circuits, T J = 0 to 125 °C, C O = 10 µF, unless otherwise specified.Table 4. Electrical characteristics of LD1117#18Symbol Parameter Test condition Min.Typ.Max.Unit V O Output voltage V in = 3.8 V, I O = 10 mA, T J = 25 °C 1.78 1.8 1.82V V O Output voltage I O = 0 to 800 mA, V in = 3.3 to 8 V 1.76 1.84V ∆V O Line regulation V in = 3.3 to 8 V, I O = 0 mA16mV ∆V O Load regulation V in = 3.3 V, I O = 0 to 800 mA110mV ∆V O Temperature stability0.5%∆V O Long term stability1000 hrs, T J = 125 °C0.3% V in Operating input voltage I O = 100 mA15VI d Quiescent current V in≤ 8 V510mAI O Output current V in = 6.8 V, T J = 25 °C8009501300mAeN Output noise voltage B = 10 Hz to 10 kHz, T J = 25 °C100µVSVR Supply voltage rejection I O = 40 mA, f = 120 Hz, T J = 25 °CV in = 5.5 V, V ripple = 1 V PP6075dBV d Dropout voltage I O = 100 mA1 1.1V I O = 500 mA 1.05 1.15I O = 800 mA 1.10 1.2Thermal regulation T a = 25 °C, 30 ms Pulse0.010.1%/WDocID2572 Rev 3711/46Refer to the test circuits, T J = 0 to 125 °C, C O = 10 µF, unless otherwise specified.Table 5. Electrical characteristics of LD1117#25Symbol ParameterTest conditionMin.Typ.Max.Unit V O Output voltage V in = 4.5 V, I O = 10 mA, T J = 25 °C 2.475 2.52.525V V O Output voltage I O = 0 to 800 mA, V in =3.9 to 10 V 2.452.55V ∆V O Line regulation V in =3.9 to 10 V, I O = 0 mA 16mV ∆V O Load regulation V in = 3.9 V, I O = 0 to 800 mA 110mV ∆V O Temperature stability 0.5%∆V O Long term stability 1000 hrs, T J = 125 °C 0.3%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 10 V510mA I O Output current V in = 7.5 V T J = 25 °C8009501300mA eN Output noise voltage B = 10 Hz to 10 kHz, T J = 25 °C 100µV SVRSupply voltage rejectionI O = 40 mA, f = 120 Hz, T J = 25 °C V in = 5.5 V, V ripple = 1 V PP 6075dBV dDropout voltageI O = 100 mA 1 1.1VI O = 500 mA 1.05 1.15I O = 800 mA1.10 1.2Thermal regulationT a = 25 °C, 30 ms Pulse0.010.1%/W12/46DocID2572 Rev 37Refer to the test circuits, T J = 0 to 125 °C, C O = 10 µF, unless otherwise specified.Table 6. Electrical characteristics of LD1117#33Symbol Parameter Test condition Min.Typ.Max.Unit V O Output voltage V in = 5.3 V, I O = 10 mA, T J = 25 °C 3.267 3.3 3.333V V O Output voltage I O = 0 to 800 mA, V in = 4.75 to 10 V 3.235 3.365V ∆V O Line regulation V in = 4.75 to 15 V, I O = 0 mA16mV ∆V O Load regulation V in = 4.75 V, I O = 0 to 800 mA110mV ∆V O Temperature stability0.5%∆V O Long term stability1000 hrs, T J = 125 °C0.3% V in Operating input voltage I O = 100 mA15VI d Quiescent current V in≤ 15 V510mAI O Output current V in = 8.3 V, T J = 25 °C8009501300mAeN Output noise voltage B = 10 Hz to 10 kHz, T J = 25 °C100µVSVR Supply voltage rejection I O = 40 mA, f = 120 Hz, T J = 25 °CV in = 6.3 V, V ripple = 1 V PP6075dBV d Dropout voltage I O = 100 mA1 1.1V I O = 500 mA 1.05 1.15I O = 800 mA 1.10 1.2Thermal regulation T a = 25 °C, 30 ms Pulse0.010.1%/WDocID2572 Rev 3713/46Refer to the test circuits, T J = 0 to 125 °C, C O = 10 µF, unless otherwise specified.Table 7. Electrical characteristics of LD1117#50Symbol ParameterTest conditionMin.Typ.Max.Unit V O Output voltage V in = 7 V, I O = 10 mA, T J = 25 °C 4.9555.05V V O Output voltage I O = 0 to 800 mA, V in =6.5 to 15 V 4.95.1V ∆V O Line regulation V in =6.5 to 15 V, I O = 0 mA 110mV ∆V O Load regulation V in = 6.5 V, I O = 0 to 800 mA 115mV ∆V O Temperature stability 0.5%∆V O Long term stability 1000 hrs, T J = 125 °C 0.3%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 15 V510mA I O Output current V in = 10 V, T J = 25 °C8009501300mA eN Output noise voltage B = 10 Hz to 10 kHz, T J = 25 °C 100µV SVRSupply voltage rejectionI O = 40 mA, f = 120 Hz, T J = 25 °C V in = 8 V, V ripple = 1 V PP 6075dBV dDropout voltageI O = 100 mA 1 1.1VI O = 500 mA 1.05 1.15I O = 800 mA1.10 1.2Thermal regulationT a = 25 °C, 30 ms Pulse0.010.1%/W14/46DocID2572 Rev 37Refer to the test circuits, T J = 0 to 125 °C, C O = 10 µF, unless otherwise specified.Table 8. Electrical characteristics of LD1117 (adjustable)Symbol Parameter Test condition Min.Typ.Max.Unit V ref Reference voltage V in - V O = 2 V, I O = 10 mA, T J = 25 °C 1.238 1.25 1.262V V ref Reference voltage I O = 10 to 800 mA, V in - V O = 1.4 to 10 V 1.225 1.275V ∆V O Line regulation V in - V O = 1.5 to 13.75 V, I O = 10 mA0.0350.2%∆V O Load regulation V in - V O = 3 V, I O = 10 to 800 mA0.10.4%∆V O Temperature stability0.5%∆V O Long term stability1000 hrs, T J = 125 °C0.3% V in Operating input voltage15VI adj Adjustment pin current V in≤ 15 V60120µA ∆I adj Adjustment pin current change V in - V O = 1.4 to 10 V, I O = 10 to 800 mA15µA I O(min)Minimum load current V in = 15 V25mAI O Output current V in - V O = 5 V, T J = 25 °C8009501300mAeN Output noise (%V O) B = 10 Hz to 10 kHz, T J = 25 °C0.003%SVR Supply voltage rejection I O = 40 mA, f = 120 Hz, T J = 25 °CV in - V O = 3 V, V ripple = 1 V PP6075dBV d Dropout voltage I O = 100 mA1 1.1V I O = 500 mA 1.05 1.15I O = 800 mA 1.10 1.2Thermal regulation T a = 25 °C, 30 ms Pulse0.010.1%/WDocID2572 Rev 3715/46Refer to the test circuits, T J = -40 to 125 °C, C O = 10 µF, R = 120 Ω between GND and OUT pins, unless otherwise specified.Table 9. Electrical characteristics of LD1117#12CSymbol ParameterTest conditionMin.Typ.Max.Unit V O Output voltage V in - V O = 2 V, I O = 10 mA, T J = 25 °C 1.176 1.20 1.224V V O Output voltage I O = 10 to 800 mA, V in - V O = 1.4 to 10 V 1.1201.201.280V ∆V O Line regulation V in - V O = 1.5 to 13.75 V, I O = 10 mA 1%∆V O Load regulation V in - V O = 3 V, I O = 10 to 800 mA1%∆V O Temperature stability 0.5%∆V O Long term stability 1000 hrs, T J = 125 °C 0.3%V in Operating input voltage 15V I adj Adjustment pin current V in ≤ 15 V60120µA ∆I adj Adjustment pin current changeV in - V O = 1.4 to 10 V I O = 10 to 800 mA 15µA I O(min)Minimum load current V in = 15 V25mA I O Output current V in - V O = 5 V, T J = 25 °C 8009501300mA eN Output noise (%V O ) B = 10 Hz to 10 kHz, T J = 25 °C 0.003%SVRSupply voltage rejectionI O = 40 mA, f = 120 Hz, T J = 25 °C V in - V O = 3 V, V ripple = 1 V PP 6075dBV dDropout voltageI O = 100 mA, T J = 0 to 125 °C 1 1.1VI O = 500 mA, T J = 0 to 125 °C 1.05 1.2I O = 800 mA, T J = 0 to 125 °C 1.10 1.3Thermal regulationT a = 25 °C, 30 ms Pulse0.010.1%/W16/46DocID2572 Rev 37Refer to the test circuits, T J = -40 to 125 °C, C O = 10 µF, unless otherwise specified.Table 10. Electrical characteristics of LD1117#18CSymbol Parameter Test condition Min.Typ.Max.Unit V O Output voltage V in = 3.8 V, I O = 10 mA, T J = 25 °C 1.76 1.8 1.84V V O Output voltage I O = 0 to 800 mA, V in = 3.9 to 10 V 1.73 1.87V ∆V O Line regulation V in = 3.3 to 8 V, I O = 0 mA130mV ∆V O Load regulation V in = 3.3 V, I O = 0 to 800 mA130mV ∆V O Temperature stability0.5%∆V O Long term stability1000 hrs, T J = 125 °C0.3% V in Operating input voltage I O = 100 mA15VI d Quiescent current V in≤ 8 V510mAI O Output current V in = 6.8 V T J = 25 °C8009501300mAeN Output noise voltage B = 10 Hz to 10 kHz, T J = 25 °C100µVSVR Supply voltage rejection I O = 40 mA, f = 120 Hz, T J = 25 °CV in = 5.5 V, V ripple = 1 V PP6075dBV d Dropout voltage I O = 100 mA, T J = 0 to 125 °C1 1.1V I O = 500 mA, T J = 0 to 125 °C 1.05 1.15I O = 800 mA, T J = 0 to 125 °C 1.10 1.2V d Dropout voltage I O = 100 mA 1.1V I O = 500 mA 1.2I O = 800 mA 1.3Thermal regulation T a = 25 °C, 30 ms Pulse0.010.1%/WDocID2572 Rev 3717/46Refer to the test circuits, T J = -40 to 125 °C, C O = 10 µF, unless otherwise specified.Table 11. Electrical characteristics of LD1117#25CSymbol ParameterTest conditionMin.Typ.Max.Unit V O Output voltage V in = 4.5 V, I O = 10 mA, T J = 25 °C 2.45 2.52.55V V O Output voltage I O = 0 to 800 mA, V in =3.9 to 10 V 2.42.6V ∆V O Line regulation V in =3.9 to 10 V, I O = 0 mA 130mV ∆V O Load regulation V in = 3.9 V, I O = 0 to 800 mA 130mV ∆V O Temperature stability 0.5%∆V O Long term stability 1000 hrs, T J = 125 °C 0.3%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 10 V510mA I O Output current V in = 7.5 V T J = 25 °C8009501300mA eN Output noise voltage B = 10 Hz to 10 kHz, T J = 25 °C 100µV SVRSupply voltage rejectionI O = 40 mA, f = 120 Hz, T J = 25 °C V in = 5.5 V, V ripple = 1 V PP 6075dBV dDropout voltageI O = 100 mA, T J = 0 to 125 °C 1 1.1VI O = 500 mA, T J = 0 to 125 °C 1.05 1.15I O = 800 mA, T J = 0 to 125 °C 1.101.2V dDropout voltageI O = 100 mA1.1V I O = 500 mA 1.2I O = 800 mA1.3Thermal regulationT a = 25 °C, 30 ms Pulse0.010.1%/W18/46DocID2572 Rev 37Refer to the test circuits, T J = -40 to 125 °C, C O = 10 µF, unless otherwise specified.Table 12. Electrical characteristics of LD1117#33CSymbol Parameter Test condition Min.Typ.Max.Unit V O Output voltage V in = 5.3 V, I O = 10 mA, T J = 25 °C 3.24 3.3 3.36V V O Output voltage I O = 0 to 800 mA, V in = 4.75 to 10 V 3.16 3.44V ∆V O Line regulation V in = 4.75 to 15 V, I O = 0 mA130mV ∆V O Load regulation V in = 4.75 V, I O = 0 to 800 mA130mV ∆V O Temperature stability0.5%∆V O Long term stability1000 hrs, T J = 125 °C0.3% V in Operating input voltage I O = 100 mA15VI d Quiescent current V in≤ 15 V510mAI O Output current V in = 8.3 V, T J = 25 °C8009501300mAeN Output noise voltage B = 10 Hz to 10 kHz, T J = 25 °C100µVSVR Supply voltage rejection I O = 40 mA, f = 120 Hz, T J = 25 °CV in = 6.3 V, V ripple = 1 V PP6075dBV d Dropout voltage I O = 100 mA, T J = 0 to 125 °C1 1.1V I O = 500 mA, T J = 0 to 125 °C 1.05 1.15I O = 800 mA, T J = 0 to 125 °C 1.10 1.2V d Dropout voltage I O = 100 mA 1.1V I O = 500 mA 1.2I O = 800 mA 1.3Thermal regulation T a = 25 °C, 30 ms Pulse0.010.1%/WDocID2572 Rev 3719/46Refer to the test circuits, T J = -40 to 125 °C, C O = 10 µF, unless otherwise specified.Table 13. Electrical characteristics of LD1117#50CSymbol ParameterTest conditionMin.Typ.Max.Unit V O Output voltage V in = 7 V, I O = 10 mA, T J = 25 °C 4.955.1V V O Output voltage I O = 0 to 800 mA, V in =6.5 to 15 V 4.85.2V ∆V O Line regulation V in =6.5 to 15 V, I O = 0 mA 150mV ∆V O Load regulation V in = 6.5 V, I O = 0 to 800 mA 150mV ∆V O Temperature stability 0.5%∆V O Long term stability 1000 hrs, T J = 125 °C 0.3%V in Operating input voltage I O = 100 mA 15V I d Quiescent current V in ≤ 15 V510mA I O Output current V in = 10 V, T J = 25 °C8009501300mA eN Output noise voltage B = 10 Hz to 10 kHz, T J = 25 °C 100µV SVRSupply voltage rejectionI O = 40 mA, f = 120 Hz, T J = 25 °C V in = 8 V, V ripple = 1 V PP 6075dBV dDropout voltageI O = 100 mA, T J = 0 to 125 °C 1 1.1VI O = 500 mA, T J = 0 to 125 °C 1.05 1.15I O = 800 mA, T J = 0 to 125 °C 1.101.2V dDropout voltageI O = 100 mA1.1V I O = 500 mA 1.2I O = 800 mA1.3Thermal regulationT a = 25 °C, 30 ms Pulse0.010.1%/WElectrical characteristics LD111720/46DocID2572 Rev 37Refer to the test circuits, T J = -40 to 125 °C, C O = 10 µF, unless otherwise specified.Table 14. Electrical characteristics of LD1117C (adjustable)Symbol Parameter Test condition Min.Typ.Max.Unit V ref Reference voltage V in - V O = 2 V, I O = 10 mA, T J = 25 °C 1.225 1.25 1.275V V ref Reference voltage I O = 10 to 800 mA, V in - V O= 1.4 to 10 V 1.2 1.3V ∆V O Line regulation V in - V O = 1.5 to 13.75 V, I O = 10 mA1%∆V O Load regulation V in - V O = 3 V, I O = 10 to 800 mA1%∆V O Temperature stability0.5%∆V O Long term stability1000 hrs, T J = 125 °C0.3% V in Operating input voltage15VI adj Adjustment pin current V in≤ 15 V60120µA ∆I adj Adjustment pin current change V in - V O = 1.4 to 10 V, I O = 10 to 800 mA110µA I O(min)Minimum load current V in = 15 V25mAI O Output current V in - V O = 5 V, T J = 25 °C8009501300mAeN Output noise (%V O) B = 10 Hz to 10 kHz, T J = 25 °C0.003%SVR Supply voltage rejection I O = 40 mA, f = 120 Hz, T J = 25 °CV in - V O = 3 V, V ripple = 1 V PP6075dBV d Dropout voltage I O = 100 mA, T J = 0 to 125 °C1 1.1V I O = 500 mA, T J = 0 to 125 °C 1.05 1.15I O = 800 mA, T J = 0 to 125 °C 1.10 1.2V d Dropout voltage I O = 100 mA 1.1V I O = 500 mA 1.2I O = 800 mA 1.3Thermal regulation T a = 25 °C, 30 ms Pulse0.010.1%/WDocID2572 Rev 3721/46LD1117Typical application6Typical applicationTypical application LD111722/46DocID2572 Rev 37DocID2572 Rev 3723/46LD1117Typical applicationLD1117 adjustable: application note LD111724/46DocID2572 Rev 377 LD1117 adjustable: application noteThe LD1117 adjustable has a thermal stabilized 1.25 ± 0.012 V reference voltage betweenthe OUT and ADJ pins. I ADJ is 60 µA typ. (120 µA max.) and ∆I ADJ is 1 µA typ. (5 µA max.).R1 is normally fixed to 120 Ω. From Figure9 we obtain:V OUT = V REF + R2 (I ADJ +I R1) = V REF + R2 (I ADJ +V REF /R1) = V REF (1 + R2 / R1) + R2 x I ADJ.In normal application R2 value is in the range of few kΩ, so the R2 x I ADJ product could notbe considered in the V OUT calculation; then the above expression becomes:V OUT = V REF (1 + R2 / R1).In order to have the better load regulation it is important to realize a good Kelvin connectionof R1 and R2 resistors. In particular R1 connection must be realized very close to OUT andADJ pin, while R2 ground connection must be placed as near as possible to the negativeLoad pin. Ripple rejection can be improved by introducing a 10 µF electrolytic capacitorplaced in parallel to the R2 resistor (see Figure10).DocID2572 Rev 3725/46LD1117Package information8 Package informationIn order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: . ECOPACK is an ST trademark.Table 15. TO-220 mechanical data (type STD-ST Dual Gauge)Dim.mmMin.Typ.Max.A 4.40 4.60b 0.610.88b1 1.14 1.70c 0.480.70D 15.2515.75D1 1.27E 1010.40e 2.40 2.70e1 4.95 5.15F 1.23 1.32H1 6.20 6.60J1 2.40 2.72L 1314L1 3.503.93L2016.40L3028.90∅P3.75 3.85Q2.652.95Package information LD111726/46DocID2572 Rev 37DocID2572 Rev 3727/46LD1117Package informationTable 16. TO-220 mechanical data (type STD-ST Single Gauge)Dim.mmMin.Typ.Max.A 4.40 4.60b 0.610.88b1 1.14 1.70c 0.480.70D 15.2515.75E 1010.40e 2.40 2.70e1 4.95 5.15F 0.510.60H1 6.20 6.60J1 2.40 2.72L 1314L1 3.503.93L2016.40L3028.90∅P3.75 3.85Q2.652.95。
MEMORY存储芯片LM1117IMPX-ADJ中文规格书
3 Description
The LM1117 is a low dropout voltage regulator with a dropout of 1.2 V at 800 mA of load current.
The LM1117 is available in an adjustable version, which can set the output voltage from 1.25 to 13.8 V with only two external resistors. In addition, it is available in five fixed voltages, 1.8 V, 2.5 V, 3.3 V, and 5 V.
(2) The maximum power dissipation is a function of TJ(max) , RθJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD = (TJ(max)–TA)/RθJA. All numbers apply for packages soldered directly into a PCB.
A minimum of 10-µF tantalum capacitor is required at the output to improve the transient response and stability.
Device Information(1)
PART NUMBER PACKAGE
7.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
LD1117中文资料详解
LD1117中文资料详解
概述：
LD1117是低开启电压稳压源。
在额定工作温度范围内，可以进行有效过温和过流保护。
应用范围广泛，可以提供1.2V，
1.5V,1.8V,
2.5V,
3.3V,5V固定电压输出;同时也提供可调输出(在1.2~~VCC)，用外接2电阻调整来实现。
基本特性：
1.此稳压源输入最高电压16v
2.提供固定电压输出1.2v，1.5v，1.8v，2.5v，
3.3v，5v
3.输出电压精度可控制在1%的范围内
4.较宽输出电流范围1mA--1A
5.非常好线性调整率和负载调整率
6.低开启电压
7.提供封装SOT-223，TO-252
应用范围：
1.高效率线性电源
2.影音产品
3.仪器仪表、显示器
4.通讯产品及电池充电
5.主芯片供电
6.电脑周边及车载产品产品以下为网络资料：。
MEMORY存储芯片LM1117MPX-3.3中文规格书
LM1117800mA Low-Dropout Linear RegulatorGeneral DescriptionThe LM1117is a series of low dropout voltage regulators with a dropout of1.2V at800mA of load current.It has the same pin-out as National Semiconductor’s industry standard LM317.The LM1117is available in an adjustable version,which can set the output voltage from1.25V to13.8V with only two ex-ternal resistors.In addition,it is also available in five fixed voltages,1.8V,2.5V,2.85V,3.3V,and5V.The LM1117offers current limiting and thermal shutdown.Its circuit includes a zener trimmed bandgap reference to as-sure output voltage accuracy to within±1%.The LM1117series is available in SOT-223,TO-220,and TO-252D-PAK packages.A minimum of10µF tantalum ca-pacitor is required at the output to improve the transient re-sponse and stability.Featuresn Available in1.8V,2.5V,2.85V,3.3V,5V,and Adjustable Versionsn Space Saving SOT-223Packagen Current Limiting and Thermal Protectionn Output Current800mA n Temperature Range0˚C to125˚C n Line Regulation0.2%(Max) n Load Regulation0.4%(Max)Applicationsn 2.85V Model for SCSI-2Active Terminationn Post Regulator for Switching DC/DC Convertern High Efficiency Linear Regulatorsn Battery Chargern Battery Powered InstrumentationTypical ApplicationActive Terminator for SCSI-2BusDS100919-5Fixed Output RegulatorDS100919-28LM1117 800mA Low-Dropout Linear RegulatorOrdering InformationPackageTemperature Range Packaging Marking Transport Media NSC Drawing 0˚C to +125˚C 3-lead SOT-223LM1117MPX-ADJN03A Tape and Reel MA04A LM1117MPX-1.8N12A Tape and Reel *LM1117MPX-2.5N13A Tape and Reel LM1117MPX-2.85N04A Tape and Reel LM1117MPX-3.3N05A Tape and Reel LM1117MPX-5.0N06A Tape and Reel 3-lead TO-220LM1117T-ADJLM1117T-ADJ Rails T03B LM1117T-2.85LM1117T-2.85Rails LM1117T-3.3LM1117T-3.3Rails LM1117T-5.0LM1117T-5.0Rails 3-lead TO-252LM1117DTX-ADJLM1117DT-ADJ Tape and Reel TD03BLM1117DTX-1.8LM1117DT-1.8Tape and Reel *LM1117DTX-2.5LM1117DT-2.5Tape and Reel LM1117DTX-2.85LM1117DT-2.85Tape and Reel LM1117DTX-3.3LM1117DT-3.3Tape and Reel LM1117DTX-5.0LM1117DT-5.0Tape and Reel Note:*Contact factory for availability.Block DiagramDS100919-1L M 1117Absolute Maximum Ratings (Note 1)If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and specifications.Maximum Input Voltage (V IN to GND)LM1117-ADJ,LM1117-1.8,LM1117-2.5,LM1117-3.3,LM1117-5.020V Power Dissipation (Note 2)Internally Limited Junction Temperature (T J )(Note 2)150˚C Storage Temperature Range-65˚C to 150˚C Lead Temperature TO-220(T)Package 260˚C,10sec SOT-223(IMP)Package 260˚C,4sec ESD Tolerance (Note 3)2000V Operating Ratings (Note 1)Input Voltage (V IN to GND)LM1117-ADJ,LM1117-1.8,LM1117-2.5,LM1117-3.3,LM1117-5.015V LM1117-2.8510V Junction Temperature Range (T J )(Note 2)0˚C to 125˚CElectrical CharacteristicsTypicals and limits appearing in normal type apply for T J =25˚C.Limits appearing in Boldface type apply over the entire junc-tion temperature range for operation,0˚C to 125˚C.SymbolParameter Conditions Min (Note 5)Typ (Note 4)Max (Note 5)Units V REF Reference Voltage LM1117-ADJI OUT =10mA,V IN -V OUT =2V,T J =25˚C10mA ≤I OUT ≤800mA,1.4V ≤V IN -V OUT≤10V1.2381.225 1.2501.250 1.2621.270V V V OUT Output Voltage LM1117-1.8I OUT =10mA,V IN =3.8V,T J =25˚C0≤I OUT ≤800mA,3.2V ≤V IN ≤10V1.7821.746 1.8001.800 1.8181.854V V LM1117-2.5I OUT =10mA,V IN =4.5V,T J =25˚C0≤I OUT ≤800mA,3.9V ≤V IN ≤10V2.4752.450 2.5002.500 2.5252.550V V LM1117-2.85I OUT =10mA,V IN =4.85V,T J =25˚C0≤I OUT ≤800mA,4.25V ≤V IN ≤10V0≤I OUT ≤500mA,V IN =4.10V2.8202.7902.790 2.8502.8502.850 2.8802.9102.910V V V LM1117-3.3I OUT =10mA,V IN =5V T J =25˚C0≤I OUT ≤800mA,4.75V ≤V IN ≤10V3.2673.235 3.3003.300 3.3333.365V V LM1117-5.0I OUT =10mA,V IN =7V,T J =25˚C0≤I OUT ≤800mA,6.5V ≤V IN ≤12V4.9504.9005.0005.000 5.0505.100V V ∆V OUT Line Regulation(Note 6)LM1117-ADJ I OUT =10mA,1.5V ≤V IN -V OUT ≤13.75V0.0350.2%LM1117-1.8I OUT =0mA,3.2V ≤V IN ≤10V16mV LM1117-2.5I OUT =0mA,3.9V ≤V IN ≤10V16mV LM1117-2.85I OUT =0mA,4.25V ≤V IN ≤10V16mV LM1117-3.3I OUT =0mA,4.75V ≤V IN ≤15V16mV LM1117-5.0I OUT =0mA,6.5V ≤V IN ≤15V 110mVL M 1117Typical Performance CharacteristicsDropout Voltage(V IN-V OUT)DS100919-22Short-Circuit CurrentDS100919-23Load RegulationDS100919-24LM1117-ADJ Ripple RejectionDS100919-6LM1117-ADJ Ripple Rejection vs.CurrentDS100919-7Temperature StabilityDS100919-25LM1117。
1117稳压芯片参数
1117稳压芯片参数
1117是一款稳压芯片，它的出现为电脑主机和其他外设的安全降压而提供了更有效的保护。
该产品具有采用最新的技术、高效的工作特性、高安全性。
它可以提供稳定的电压输出，并能够保持充足的供电，延长电源的寿命。
1117稳压芯片使用双分路控制系统，可以实现输入输出完全分离，确保输出稳定，有效阻止衰减造成的偏差，降低失真程度，抑制频率和他电压输出的噪声，提高电源线路的抗干扰性能。
此外，1117稳压芯片采用双稳压设计，可实现外部下调和上调电压输出，使用多种工作环境，可确保稳压功能正常运行。
1117稳压芯片的参数很多，可分为输入参数和输出参数两类。
输入参数包括：电气特性，输入电压、输入电压范围、输入电流、输入阻抗、输入电流限制、输入功耗、输入开关和保护。
输出参数包括：电气特性，输出电压、输出电压范围、输出电流、输出阻抗、输出精度、电源追踪精度、输出纹波和噪声、输出时间延迟和软启动时间。
另外，1117稳压芯片的功能特性还包括：电压温度补偿、电压调节比、回路增益、过流保护、过温过载保护、反向连接保护、功耗模式以及电路自检功能。
1117稳压芯片已成为许多电脑外设产品的主要配件，它们使用它可以实现安全降压，保护主机设备，并保证正常工作。
此外，它具有高可靠性、高效率和低功耗，是电脑使用的理想选择。
总之，1117稳压芯片的参数很多，其输入输出参数可实现安全降压，高可靠性、高效率和低功耗，可以有效保护主机和其他外设的安全。
此外，它的使用还能延长电源的寿命，进一步降低故障率，为电脑带来更多的福利。
LD1117系列各品牌技术规格书
ABSOLUTE MAXIMUM RATINGS (Note 1)
Power Dissipation
Internally limited
Input Voltage
15V
Operating Junction Temperature Range
Control Section
0°C to 125°C
Power Transistor
Adjust Pin Current Change
Temperature Stability
Long Term Stability
RMS Output Noise (% of VOUT ) Thermal Resistance Junction-to-Case
2.82
2.850
2.88
V
2.79
2.850
2.91
V
0 ≤ IOUT ≤ 800mA , 4.75V ≤ VIN ≤ 12V
3.267 3.300
3.333
V
3.235 3.300
3.365
V
0 ≤ IOUT ≤ 800mA , 6.5V ≤ VIN ≤ 12V
4.950 5.000
5.050
V
ϕ JA= 90°C/W*
* With package soldering to copper area over backside
1117稳压芯片参数
1117稳压芯片参数
稳压芯片参数是指一种半导体元件，其主要功能是提供调节和稳定的电压输出，用于维护电子系统的性能和安全的稳定运转。
这种半导体芯片是一种非常重要的元件，它可以控制和调整电路的电压，从而保证电子设备的正常运行。
1117稳压芯片是一种常用的稳压芯片，它有三种型号：
LM1117-2.5V、LM1117-3.3V和LM1117-5.0V。
它采用恒流恒压工作模式，其最大输出电流在1A左右，并且可以承受较大的负载波动。
其参数如下：
1）输出电压：2.5V，3.3V，5.0V；
2）输出电流：最大1A，最大输入电压为36V；
3）保护功能：具有短路保护和过压保护功能；
4）输出噪声：低于50μV/V；
5）开关频率：1.2MHz；
6）热型号：SOT-223、 PDIP-8或TO-251-2。
1117稳压芯片具有非常多的优势，它可以具有短路保护，热保护和过压保护功能，从而保证电路的可靠性。
它的封装和热型号也可以根据客户要求定制，使用非常方便。
此外，它还具有良好的静态性能和动态性能，因此可以很好地适应高频或工业应用环境。
1117稳压芯片的应用也非常广泛，它可以用于电脑，网络设备，电源适配器，数字家电，汽车电子和通讯设备等领域。
它可以提供稳定的电压输出，保证电子系统正常工作，可靠性更好。
综上，1117稳压芯片参数具有较高的性能，可以很好地保证电子系统的可靠性。
它的应用非常广泛，可以满足多种不同的电子设备的需求。
它的优势使它成为一种非常有价值的稳压芯片元件，也是电路设计中的一种重要元件。
MEMORY存储芯片LM1117MPX-ADJ中文规格书
10Power Supply RecommendationsThe input supply to the LM1117must be kept at a voltage level such that its maximum rating is not exceeded. The minimum dropout voltage must also be met with extra headroom when possible to keep the LM1117in regulation.An input capacitor is recommended.For more information regarding capacitor selection,refer to External Capacitors.11Layout11.1Layout GuidelinesSome layout guidelines must be followed to ensure proper regulation of the output voltage with minimum noise. Traces carrying the load current must be wide to reduce the amount of parasitic trace inductance and the feedback loop from V OUT to ADJ must be kept as short as possible.To improve PSRR,a bypass capacitor can be placed at the ADJ pin and must be located as close as possible to the IC.In cases when V IN shorts to ground, an external diode must be placed from V OUT to V IN to divert the surge current from the output capacitor and protect the IC.The diode must be placed close to the corresponding IC pins to increase their effectiveness.11.1.1Heatsink RequirementsWhen an integrated circuit operates with an appreciable current,its junction temperature is elevated.It is important to quantify its thermal limits in order to achieve acceptable performance and reliability.This limit is determined by summing the individual parts consisting of a series of temperature rises from the semiconductor junction to the operating environment.A one-dimensional steady-state model of conduction heat transfer is demonstrated in Figure22.The heat generated at the device junction flows through the die to the die attach pad, through the lead frame to the surrounding case material,to the printed circuit board,and eventually to the ambient environment.Below is a list of variables that may affect the thermal resistance and in turn the need for a heatsink.ponent and Application VariablesRθJC(COMPONENT VARIABLES)RθJA(APPLICATION VARIABLES)Leadframe Size and Material Mounting Pad Size,Material,and LocationNo.of Conduction Pins Placement of Mounting PadDie Size PCB Size and MaterialDie Attach Material Traces Length and WidthMolding Compound Size and Material Adjacent Heat SourcesVolume of AirAmbient TemperatueShape of Mounting PadThe case temperature is measured at the point where the leads contact with the mounting pad surfaceFigure22.Cross-Sectional View of Integrated Circuit Mounted on a Printed Circuit BoardPACKAGING INFORMATIONAddendum-Page 1Addendum-Page 2Device PackageType PackageDrawingPins SPQ ReelDiameter(mm)ReelWidthW1(mm)A0(mm)B0(mm)K0(mm)P1(mm)W(mm)Pin1QuadrantLM1117LD-ADJ/NOPB WSON NGN81000178.012.4 4.3 4.3 1.38.012.0Q1 LM1117LDX-1.8/NOPB WSON NGN84500330.012.4 4.3 4.3 1.38.012.0Q1 LM1117LDX-ADJ/NOPB WSON NGN84500330.012.4 4.3 4.3 1.38.012.0Q1 LM1117MP-1.8/NOPB SOT-223DCY41000330.016.47.07.5 2.212.016.0Q3 LM1117MP-2.5/NOPB SOT-223DCY41000330.016.47.07.5 2.212.016.0Q3 LM1117MP-3.3/NOPB SOT-223DCY41000330.016.47.07.5 2.212.016.0Q3 LM1117MP-5.0/NOPB SOT-223DCY41000330.016.47.07.5 2.212.016.0Q3 LM1117MP-ADJ/NOPB SOT-223DCY41000330.016.47.07.5 2.212.016.0Q3 LM1117MPX-1.8/NOPB SOT-223DCY42000330.016.47.07.5 2.212.016.0Q3 LM1117MPX-2.5/NOPB SOT-223DCY42000330.016.47.07.5 2.212.016.0Q3 LM1117MPX-3.3SOT-223DCY42000330.016.47.07.5 2.212.016.0Q3 LM1117MPX-3.3/NOPB SOT-223DCY42000330.016.47.07.5 2.212.016.0Q3 LM1117MPX-5.0/NOPB SOT-223DCY42000330.016.47.07.5 2.212.016.0Q3 LM1117MPX-ADJ/NOPB SOT-223DCY42000330.016.47.07.5 2.212.016.0Q3 LM1117SX-3.3/NOPB DDPAK/TO-263KTT3500330.024.410.7514.85 5.016.024.0Q2LM1117SX-5.0/NOPB DDPAK/TO-263KTT3500330.024.410.7514.85 5.016.024.0Q2LM1117SX-ADJ/NOPB DDPAK/TO-263KTT3500330.024.410.7514.85 5.016.024.0Q2。
LM1117-3.3 电压转换芯片 数据手册 说明书
1A Low Dropout Positive Voltage RegulatorLM1117L3Features Description●Adjustable or Fixed Output The LM1117 series of positive adjustable and fixed ●Output Current of 1A regulators are designed to provide 1A with high ●Low Dropout, 1.3V max at 1A Output Current efficiency. All internal circuitry is designed to ●0.04% Line Regulation operate down to 1.3V input to output differential. ●0.2% Load Regulation On-chip trimming adjusts the reference voltage to ●100% Thermal Limit Burn-in 1%.●Fast Transient ResponseApplications●High Efficiency Linear Regulators● Post Regulators for Switching Supplies● Adjustable Power SupplyTypical Application DataFixed V oltage RegulatorAdjustable V oltage RegulatorV OUT =V REF ×(1+R2/R1)+I ADJ ×R21) C1 needed if device is far from filter capacitors2) C2 minimum value required for stabilityC2 10μF Tant.MinV OUT =3.3V C110μF Tant V IN >4.75V 1 23IN TAB GND OUT +V OUT =3.45V C2 10μF Tant.Min R2 232 Ohm,1%C1 10μF, Tant V IN >4.75V + IN TAB ADJ OUT+Package InformationSOT-223Absolute Maximum RatingsSymbol ParameterMaximum Units PD Power DissipationInternally Limited W VIN Input Voltage7 V TJ Operating Junction Temperature RangeControl SectionPower Transistor0 to 125 0 to 150 ℃ TSTG Storage Temperature-65 to 150 ℃ TLEAD Lead Temperature(Soldering, 10 sec) 300 ℃Device Selection GuideDeviceOutput Voltage LM1117-AdjAdjustable LM1117-1.51.5V LM1117-1.81.8V LM1117-2.52.5V LM1117-2.852.8 5V LM1117-3.03. 0V LM1117-3.33.3V LM1117-3.53.5V LM1117-5.05.0VElectrical Characteristics @I LOAD =0mA,T J =25℃, unless otherwise specifiedParameter DeviceTest Conditions Min Typ Max Units V IN =5V,I LOAD =10mA 1.238 1.250 1.262Reference voltage(Note 1) Adj VersionV IN =2.65V to 7V,I LOAD =10mA to 1A * 1.225 1.250 1.275V V IN =V OUT +1.5VVariator from nominal V OUT-1 +1 % V IN =V OUT +1.5V to 7VI LOAD =0mA to 1AOutput Voltage (Note 1) Al fixedversion Variator from nominal V OUT * -2 +2 %Line Regulation (Note 1) All I LOAD =10mA,(V OUT +1.5V)≦V ≦7V * 0.040.2Load Regualtion (Note 1) All V IN =V OUT +1.5V, I LOAD =10mA to 1A * 0.2 0.4%Minimum Load Current Adj Version V IN =5V,V ADJ =0V * 3 7mAGround Pin Current All fixed version V IN =V OUT +1.5V,I LOAD =10mA to 1A *713mAAdjust Pin CurrentAdj Version V IN =2.65V to 7V, I LOAD =10mA * 55 90µA Pin Function1 ADJ/GND2 OUTPUT3 INPUT 1 2 3Current Limit All (V IN -V OUT )=1.5V* 1 A Ripple Rejection (Note 2)All V IN =V OUT +1.5V,I LOAD =1A6072dB Dropout Voltage (Note 1,3)All V IN ≧2.65V, I LOAD = 1A* 1.15 1.3V Temperature CoefficientAll V IN =V OUT=1.5V, I LOAD = 10mA * 0.005 %/℃The * denotes the specifications which apply over the full temperature range.Note 1:Low duty pulse testing with Kelvin connections required.Note 2:120Hz input ripple(CADJ for ADJ=25μF)Note 3:△VOUT, △VREF=1%.Representative Circuit DiagramGND V INV OUT FOR FIXEDVOLTAGEDEVICEFORADJUSTABLEVOLTAGEDEVICE ADJ*: TypicalInches Millimeters Inches Millimeters DIM Min. Max. Min. Max. DIM Min. Max. Min. Max.A 0.1142 0.1220 2.90 3.10 G 0.0551 0.0709 1.40 1.80B 0.2638 0.2874 6.70 7.30 H 0.0098 0.0138 0.25 0.35C 0.1299 0.1457 3.30 3.70 I 0.0008 0.0039 0.02 0.10D 0.0236 0.0315 0.60 0.80 a1 *13o - *13o -E *0.0906 - *2.30 - a2 0 o 10 o 0 o 10 oF 0.2480 0.2638 6.30 6.70Notes: 1.Controlling dimension: millimeters.2.Maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material.3.If there is any question with packing specification or packing method, please contact your local CYStek sales office. Material:• Lead: 42 Alloy; solder plating• Mold Compound: Epoxy resin family, flammability solid burning class: UL94V-0Important Notice:• All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of CYStek.• CYStek reserves the right to make changes to its products without notice.• CYStek semiconductor products are not warranted to be suitable for use in Life-Support Applications, or systems.• CYStek assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.321FB AC D EG H a1a2I Style: Pin 1.Adj/Gnd 2.Output3.Input3-Lead SOT-223 Plastic Surface Mounted PackageCYStek Package Code: L3左一: 西元年末碼左二: 月碼, 1=A,2=B,…8=H,9=J, …,12=M左三-四: 流水號 Date CodePart number:XX: 15 for 1.5V18 for 1.8V25 for 2.5V33 for 3.3V50 for 5.0VBlank for ADJ。
1117稳压芯片参数
1117稳压芯片参数1111稳压芯片是一种微型、高效、低成本的控制电路，是当今电子行业中应用最广泛的元器件之一。
它可以将电源电压调节到一定的电压，并在负载变化时保持电源输出电压的稳定。
它具有缩短设计周期、降低电路成本、提高电路可靠性的优点，因此，它已成为设计电子产品的必备元件之一。
1111稳压芯片的参数有电源输入电压、电源输出电压、输入电流、输出电流、电路稳定性、空载损耗、负载特性、温度特性、频率特性等。
电源输入电压是指电源输入端能接受的最大电压和最小电压，它是1111稳压芯片能够正常工作的前提，其范围一般介于3.3V到35V 之间，是与用户所使用电源有关的。
电源输出电压是指经1111稳压芯片调整后输出的电压，它决定了电子产品在设计时电路板上元器件的工作电压，一般情况下它的范围介于0.8V到18V之间。
输入电流是指1111稳压芯片接受的最大电流，它决定了稳压芯片的功率。
一般来说，输入电流的值越大，1111稳压芯片的效率就越高，其参数一般介于100mA至1A之间。
输出电流是指经1111稳压芯片调整后输出的电流，它决定了稳压芯片在正常工作时的负载能力，它的值一般介于200mA至4A之间。
电路稳定性指的是1111稳压芯片在负载变化时，电源输出电压的变化幅度，它是1111稳压芯片可靠性的一个重要指标，参数越小，表明稳压芯片的性能越好。
空载损耗是指稳压芯片在空载情况下的能量损失，它的大小直接决定了稳压芯片的效率，其数值一般介于2mW到0.2W之间。
负载特性指的是稳压芯片在负载变化时，电源输出电压的变化情况，它与电路稳定性有关，负载特性越好，稳压芯片的可靠性越高。
温度特性是指稳压芯片在环境温度变化时，输出电压的变化，它将直接影响稳压芯片的工作状态，一般情况下，温度特性越好，稳压芯片的性能就越好。
频率特性是指稳压芯片在工作频率变化时有多大的变化。
频率越高，稳压芯片的性能就越好，所需的组件及电路就越少，从而降低了成本、缩短了设计周期。
1117-18
LM1117/LM1117I800mA Low-Dropout Linear RegulatorGeneral DescriptionTheLM1117is a series of low dropout voltage regulators with a dropout of 1.2V at 800mA of load current.It has the same pin-out as National Semiconductor’s industry standard LM317.The LM1117is available in an adjustable version,which can set the output voltage from 1.25V to 13.8V with only two external resistors.In addition,it is also available in five fixed voltages,1.8V,2.5V,2.85V,3.3V,and 5V.The LM1117offers current limiting and thermal shutdown.Its circuit includes a zener trimmed bandgap reference to as-sure output voltage accuracy to within ±1%.The LM1117series is available in LLP ,TO-263,SOT-223,TO-220,and TO-252D-PAK packages.A minimum of 10µF tantalum capacitor is required at the output to improve the transient response and stability.Featuresn Available in 1.8V,2.5V,2.85V,3.3V,5V,and Adjustable Versionsn Space Saving SOT-223and LLP Packages n Current Limiting and Thermal Protection n Output Current 800mA n Line Regulation 0.2%(Max)n Load Regulation 0.4%(Max)n Temperature Range —LM11170˚C to 125˚C —LM1117I −40˚C to 125˚CApplicationsn 2.85V Model for SCSI-2Active Termination n Post Regulator for Switching DC/DC Converter n High Efficiency Linear Regulators n Battery ChargernBattery Powered InstrumentationTypical ApplicationActive Terminator for SCSI-2Bus10091905Fixed Output Regulator10091928June 2004LM1117/LM1117I 800mA Low-Dropout Linear Regulator©2004National Semiconductor Corporation OrderingInformationPackage TemperatureRange Part Number Packaging MarkingTransport Media NSC Drawing 3-lead SOT-2230˚C to +125˚CLM1117MPX-ADJ N03A Tape and Reel MP04ALM1117MPX-1.8N12A Tape and Reel LM1117MPX-2.5N13A Tape and Reel LM1117MPX-2.85N04A Tape and Reel LM1117MPX-3.3N05A Tape and Reel LM1117MPX-5.0N06A Tape and Reel −40˚C to +125˚CLM1117IMPX-ADJ N03B Tape and Reel LM1117IMPX-3.3N05B Tape and Reel LM1117IMPX-5.0N06B Tape and Reel3-lead TO-2200˚C to +125˚CLM1117T-ADJ LM1117T-ADJ Rails T03B LM1117T-1.8LM1117T-1.8Rails LM1117T-2.5LM1117T-2.5Rails LM1117T-2.85LM1117T-2.85Rails LM1117T-3.3LM1117T-3.3Rails LM1117T-5.0LM1117T-5.0Rails 3-lead TO-2520˚C to +125˚CLM1117DTX-ADJ LM1117DT-ADJ Tape and Reel TD03B LM1117DTX-1.8LM1117DT-1.8Tape and Reel LM1117DTX-2.5LM1117DT-2.5Tape and Reel LM1117DTX-2.85LM1117DT-2.85Tape and Reel LM1117DTX-3.3LM1117DT-3.3Tape and Reel LM1117DTX-5.0LM1117DT-5.0Tape and Reel −40˚C to +125˚CLM1117IDTX-ADJ LM1117IDT-ADJ Tape and Reel LM1117IDTX-3.3LM1117IDT-3.3Tape and Reel LM1117IDTX-5.0LM1117IDT-5.0Tape and Reel 8-lead LLP0˚C to +125˚CLM1117LDX-ADJ 1117ADJ Tape and Reel LDC08A LM1117LDX-1.81117-18Tape and Reel LM1117LDX-2.51117-25Tape and Reel LM1117LDX-2.851117-28Tape and Reel LM1117LDX-3.31117-33Tape and Reel LM1117LDX-5.01117-50Tape and Reel −40˚C to 125˚CLM1117ILDX-ADJ 1117IAD Tape and Reel LM1117ILDX-3.31117I33Tape and Reel LM1117ILDX-5.01117I50Tape and Reel TO-2630˚C to +125˚CLM1117SX-ADJ LM1117SADJ Tape and Reel TS3B LM1117SX-2.85LM1117S2.85Tape and Reel LM1117SX-3.3LM1117S3.3Tape and Reel LM1117SX-5.0LM1117S5.0Tape and ReelL M 1117/L M 1117I 2BlockDiagram10091901Connection DiagramsSOT-22310091904Top ViewTO-22010091902Top ViewTO-25210091938Top ViewTO-26310091944Top View10091945Side ViewLLP10091946When using the LLP packagePins2,3&4must be connected together andPins5,6&7must be connected togetherTop ViewLM1117/LM1117I3Absolute Maximum Ratings(Note 1)If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and specifications.Maximum Input Voltage (V IN to GND)20VPower Dissipation (Note 2)Internally LimitedJunction Temperature (T J )(Note 2)150˚CStorage Temperature Range -65˚C to 150˚CLead TemperatureTO-220(T)Package 260˚C,10sec SOT-223(IMP)Package 260˚C,4secESD Tolerance (Note 3)2000VOperating Ratings (Note 1)Input Voltage (V IN to GND)15VJunction Temperature Range (T J )(Note 2)LM11170˚C to 125˚C LM1117I−40˚C to 125˚CLM1117Electrical CharacteristicsTypicals and limits appearing in normal type apply for T J =25˚C.Limits appearing in Boldface type apply over the entire junc-tion temperature range for operation,0˚C to 125˚C.Symbol Parameter ConditionsMin (Note 5)Typ (Note 4)Max (Note 5)UnitsV REFReference VoltageLM1117-ADJI OUT =10mA,V IN -V OUT =2V,T J =25˚C 10mA ≤I OUT ≤800mA,1.4V ≤V IN -V OUT ≤10V1.2381.2251.2501.2501.2621.270V VV OUTOutput VoltageLM1117-1.8I OUT =10mA,V IN =3.8V,T J =25˚C 0≤I OUT ≤800mA,3.2V ≤V IN ≤10V 1.7821.746 1.8001.800 1.8181.854V V LM1117-2.5I OUT =10mA,V IN =4.5V,T J =25˚C 0≤I OUT ≤800mA,3.9V ≤V IN ≤10V 2.4752.450 2.5002.500 2.5252.550V V LM1117-2.85I OUT =10mA,V IN =4.85V,T J =25˚C 0≤I OUT ≤800mA,4.25V ≤V IN ≤10V 0≤I OUT ≤500mA,V IN =4.10V 2.8202.7902.790 2.8502.8502.850 2.8802.9102.910V V V LM1117-3.3I OUT =10mA,V IN =5V T J =25˚C 0≤I OUT ≤800mA,4.75V ≤V IN ≤10V 3.2673.235 3.3003.300 3.3333.365V V LM1117-5.0I OUT =10mA,V IN =7V,T J =25˚C 0≤I OUT ≤800mA,6.5V ≤V IN ≤12V4.9504.9005.0005.000 5.0505.100V V ∆V OUTLine Regulation (Note 6)LM1117-ADJI OUT =10mA,1.5V ≤V IN -V OUT ≤13.75V 0.0350.2%LM1117-1.8I OUT =0mA,3.2V ≤V IN ≤10V 16mV LM1117-2.5I OUT =0mA,3.9V ≤V IN ≤10V 16mVLM1117-2.85I OUT =0mA,4.25V ≤V IN ≤10V 16mV LM1117-3.3I OUT =0mA,4.75V ≤V IN ≤15V 16mV LM1117-5.0I OUT =0mA,6.5V ≤V IN ≤15V110mVL M 1117/L M 1117I 4LM1117ElectricalCharacteristics(Continued)Typicals and limits appearing in normal type apply for T J=25˚C.Limits appearing in Boldface type apply over the entire junc-tion temperature range for operation,0˚C to125˚C.Symbol Parameter ConditionsMin(Note5)Typ(Note4)Max(Note5)Units∆V OUT Load Regulation(Note6)LM1117-ADJV IN-V OUT=3V,10≤I OUT≤800mA0.20.4% LM1117-1.8V IN=3.2V,0≤I OUT≤800mA110mVLM1117-2.5V IN=3.9V,0≤I OUT≤800mA110mVLM1117-2.85V IN=4.25V,0≤I OUT≤800mA110mV LM1117-3.3V IN=4.75V,0≤I OUT≤800mA110mV LM1117-5.0V IN=6.5V,0≤I OUT≤800mA115mVV IN-V OUT Dropout Voltage(Note7)I OUT=100mA 1.10 1.20V I OUT=500mA 1.15 1.25V I OUT=800mA 1.20 1.30VI LIMIT Current Limit V IN-V OUT=5V,T J=25˚C80012001500mAMinimum Load Current(Note8)LM1117-ADJV IN=15V 1.75mAQuiescent Current LM1117-1.8V IN≤15V510mALM1117-2.5V IN≤15V510mALM1117-2.85V IN≤10V510mALM1117-3.3V IN≤15V510mALM1117-5.0V IN≤15V510mA Thermal Regulation T A=25˚C,30ms Pulse0.010.1%/W Ripple Regulation f RIPPLE=120Hz,V IN-V OUT=3V V RIPPLE=1V PP6075dB Adjust Pin Current60120µAAdjust Pin Current Change 10≤I OUT≤800mA,1.4V≤V IN-V OUT≤10V0.25µATemperature Stability0.5% Long Term Stability T A=125˚C,1000Hrs0.3% RMS Output Noise(%of V OUT),10Hz≤f≤10kHz0.003%Thermal Resistance Junction-to-Case 3-Lead SOT-22315.0˚C/W 3-Lead TO-220 3.0˚C/W 3-Lead TO-25210˚C/WThermal Resistance Junction-to-Ambient (No air flow)3-Lead SOT-223(No heat sink)136˚C/W3-Lead TO-220(No heat sink)79˚C/W3-Lead TO-252(Note9)(No heat sink)92˚C/W3-Lead TO-26355˚C/W8-Lead LLP(Note10)40˚C/WLM1117/LM1117I5LM1117I ElectricalCharacteristicsTypicals and limits appearing in normal type apply for T J =25˚C.Limits appearing in Boldface type apply over the entire junc-tion temperature range for operation,−40˚C to 125˚C.Symbol Parameter ConditionsMin (Note 5)Typ (Note 4)Max (Note 5)UnitsV REFReference VoltageLM1117I-ADJI OUT =10mA,V IN -V OUT =2V,T J =25˚C 10mA ≤I OUT ≤800mA,1.4V ≤V IN -V OUT ≤10V1.2381.2001.2501.2501.2621.290V VV OUTOutput VoltageLM1117I-3.3I OUT =10mA,V IN =5V,T J =25˚C 0≤I OUT ≤800mA,4.75V ≤V IN ≤10V 3.2673.168 3.3003.300 3.3333.432V V LM1117I-5.0I OUT =10mA,V IN =7V,T J =25˚C 0≤I OUT ≤800mA,6.5V ≤V IN ≤12V4.9504.8005.0005.000 5.0505.200V V ∆V OUTLine Regulation (Note 6)LM1117I-ADJI OUT =10mA,1.5V ≤V IN -V OUT ≤13.75V 0.0350.3%LM1117I-3.3I OUT =0mA,4.75V ≤V IN ≤15V 110mV LM1117I-5.0I OUT =0mA,6.5V ≤V IN ≤15V115mV ∆V OUTLoad Regulation (Note 6)LM1117I-ADJV IN -V OUT =3V,10≤I OUT ≤800mA 0.20.5%LM1117I-3.3V IN =4.75V,0≤I OUT ≤800mA 115mV LM1117I-5.0V IN =6.5V,0≤I OUT ≤800mA120mV V IN -V OUTDropout Voltage (Note 7)I OUT =100mA 1.10 1.30V I OUT =500mA 1.15 1.35V I OUT =800mA1.20 1.40V I LIMITCurrent Limit V IN -V OUT =5V,T J =25˚C 80012001500mA Minimum Load Current (Note 8)LM1117I-ADJ V IN =15V 1.75mA Quiescent CurrentLM1117I-3.3V IN ≤15V 515mA LM1117I-5.0V IN ≤15V515mA Thermal Regulation T A =25˚C,30ms Pulse0.010.1%/W Ripple Regulation f RIPPLE =120Hz,V IN -V OUT =3V V RIPPLE =1V PP6075dBAdjust Pin Current 60120µA Adjust Pin Current Change10≤I OUT ≤800mA,1.4V ≤V IN -V OUT ≤10V 0.210µA Temperature Stability 0.5%Long Term Stability T A =125˚C,1000Hrs0.3%RMS Output Noise (%of V OUT ),10Hz ≤f ≤10kHz 0.003%Thermal Resistance Junction-to-Case 3-Lead SOT-22315.0˚C/W 3-Lead TO-25210˚C/W Thermal Resistance Junction-to-Ambient No air flow)3-Lead SOT-223(No heat sink)136˚C/W 3-Lead TO-252(No heat sink)(Note 9)92˚C/W 8-Lead LLP(Note 10)40˚C/WNote 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.Operating Ratings indicate conditions for which the device is intended to be functional,but specific performance is not guaranteed.For guaranteed specifications and the test conditions,see the Electrical Characteristics.L M 1117/L M 1117I 6Note 2:Themaximum power dissipation is a function of T J(max),θJA ,and T A .The maximum allowable power dissipation at any ambient temperature is P D =(T J(max)–T A )/θJA .All numbers apply for packages soldered directly into a PC board.Note 3:For testing purposes,ESD was applied using human body model,1.5k Ωin series with 100pF.Note 4:Typical Values represent the most likely parametric norm.Note 5:All limits are guaranteed by testing or statistical analysis.Note 6:Load and line regulation are measured at constant junction room temperature.Note 7:The dropout voltage is the input/output differential at which the circuit ceases to regulate against further reduction in input voltage.It is measured when the output voltage has dropped 100mV from the nominal value obtained at V IN =V OUT +1.5V.Note 8:The minimum output current required to maintain regulation.Note 9:Minimum pad size of 0.038in 2Note 10:Thermal Performance for the LLP was obtained using JESD51-7board with six vias and an ambient temperature of 22˚C.For information about improved thermal performance and power dissipation for the LLP ,refer to Application Note AN-1187.Typical Performance CharacteristicsDropout Voltage (V IN -VOUT )Short-Circuit Current1009192210091923Load Regulation LM1117-ADJ Ripple Rejection1009194310091906LM1117/LM1117I7Typical Performance Characteristics(Continued)LM1117-ADJ Ripple Rejection vs.CurrentTemperature Stability1009190710091925Adjust Pin Current LM1117-2.85Load Transient Response1009192610091908LM1117-5.0Load Transient Response LM1117-2.85Line Transient Response1009190910091910L M 1117/L M 1117I 8Typical PerformanceCharacteristics(Continued)LM1117-5.0Line Transient Response10091911Application Note1.0External Capacitors/Stability1.1Input Bypass CapacitorAn input capacitor is recommended.A10µF tantalum on the input is a suitable input bypassing for almost all applications.1.2Adjust Terminal Bypass CapacitorThe adjust terminal can be bypassed to ground with a by-pass capacitor(C ADJ)to improve ripple rejection.This by-pass capacitor prevents ripple from being amplified as the output voltage is increased.At any ripple frequency,the impedance of the C ADJ should be less than R1to prevent the ripple from being amplified:1/(2π*f RIPPLE*C ADJ)<R1The R1is the resistor between the output and the adjust pin. Its value is normally in the range of100-200Ω.For example, with R1=124Ωand f RIPPLE=120Hz,the C ADJ should be>11µF.1.3Output CapacitorThe output capacitor is critical in maintaining regulator sta-bility,and must meet the required conditions for both mini-mum amount of capacitance and ESR(Equivalent Series Resistance).The minimum output capacitance required by the LM1117is10µF,if a tantalum capacitor is used.Any increase of the output capacitance will merely improve the loop stability and transient response.The ESR of the output capacitor should range between0.3Ω-22Ω.In the case of the adjustable regulator,when the C ADJ is used,a larger output capacitance(22µf tantalum)is required.2.0Output VoltageThe LM1117adjustable version develops a1.25V reference voltage,V REF,between the output and the adjust terminal. As shown in Figure1,this voltage is applied across resistor R1to generate a constant current I1.The current I ADJ from the adjust terminal could introduce error to the output.But since it is very small(60µA)compared with the I1and very constant with line and load changes,the error can be ig-nored.The constant current I1then flows through the output set resistor R2and sets the output voltage to the desired level.For fixed voltage devices,R1and R2are integrated inside the devices.3.0Load RegulationThe LM1117regulates the voltage that appears between itsoutput and ground pins,or between its output and adjustpins.In some cases,line resistances can introduce errors tothe voltage across the load.To obtain the best load regula-tion,a few precautions are needed.Figure2,shows a typical application using a fixed outputregulator.The Rt1and Rt2are the line resistances.It isobvious that the V LOAD is less than the V OUT by the sum ofthe voltage drops along the line resistances.In this case,theload regulation seen at the R LOAD would be degraded fromthe data sheet specification.To improve this,the load shouldbe tied directly to the output terminal on the positive side anddirectly tied to the ground terminal on the negative side.10091917FIGURE1.Basic Adjustable RegulatorLM1117/LM1117I9Application Note(Continued)When the adjustable regulator is used (Figure 3),the best performance is obtained with the positive side of the resistor R1tied directly to the output terminal of the regulator rather than near the load.This eliminates line drops from appearing effectively in series with the reference and degrading regu-lation.For example,a 5V regulator with 0.05Ωresistance between the regulator and load will have a load regulation due to line resistance of 0.05Ωx I L .If R1(=125Ω)is con-nected near the load,the effective line resistance will be 0.05Ω(1+R2/R1)or in this case,it is 4times worse.In addition,the ground side of the resistor R2can be returned near the ground of the load to provide remote ground sens-ing and improve load regulation.4.0Protection DiodesUnder normal operation,the LM1117regulators do not need any protection diode.With the adjustable device,the internal resistance between the adjust and output terminals limits the current.No diode is needed to divert the current around the regulator even with capacitor on the adjust terminal.The adjust pin can take a transient signal of ±25V with respect to the output voltage without damaging the device.When a output capacitor is connected to a regulator and the input is shorted to ground,the output capacitor will discharge into the output of the regulator.The discharge current de-pends on the value of the capacitor,the output voltage of the regulator,and rate of decrease of V IN .In the LM1117regu-lators,the internal diode between the output and input pins can withstand microsecond surge currents of 10A to 20A.With an extremely large output capacitor (≥1000µF),and with input instantaneously shorted to ground,the regulator could be damaged.In this case,an external diode is recommended between the output and input pins to protect the regulator,as shown in Figure 4.5.0Heatsink RequirementsWhen an integrated circuit operates with an appreciable current,its junction temperature is elevated.It is important to quantify its thermal limits in order to achieve acceptable performance and reliability.This limit is determined by sum-ming the individual parts consisting of a series of tempera-ture rises from the semiconductor junction to the operating environment.A one-dimensional steady-state model of con-duction heat transfer is demonstrated in Figure 5.The heat generated at the device junction flows through the die to the die attach pad,through the lead frame to the surrounding case material,to the printed circuit board,and eventually to the ambient environment.Below is a list of variables that may affect the thermal resistance and in turn the need for a heatsink.R θJC (ComponentVariables)R θCA (ApplicationVariables)Leadframe Size &Material Mounting Pad Size,Material,&Location No.of Conduction Pins Placement of Mounting PadDie SizePCB Size &Material Die Attach Material Traces Length &Width Molding Compound Size and MaterialAdjacent Heat Sources Volume of Air Ambient Temperatue Shape of Mounting Pad10091918FIGURE 2.Typical Application using Fixed OutputRegulator 10091919FIGURE 3.Best Load Regulation using AdjustableOutput Regulator 10091915FIGURE 4.Regulator with Protection Diode L M 1117/L M 1117I10Application Note(Continued)The LM1117regulators have internal thermal shutdown to protect the device from over-heating.Under all possible operating conditions,the junction temperature of the LM1117must be within the range of 0˚C to 125˚C.A heatsink may be required depending on the maximum power dissipation and maximum ambient temperature of the application.To deter-mine if a heatsink is needed,the power dissipated by the regulator,P D ,must be calculated:I IN =I L +I GP D =(V IN -V OUT )I L +V IN I GFigure 6shows the voltages and currents which are present in the circuit.The next parameter which must be calculated is the maxi-mum allowable temperature rise,T R (max):T R (max)=T J (max)-T A (max)where T J (max)is the maximum allowable junction tempera-ture (125˚C),and T A (max)is the maximum ambient tem-perature which will be encountered in the application.Using the calculated values for T R (max)and P D ,the maxi-mum allowable value for the junction-to-ambient thermal resistance (θJA )can be calculated:θJA =T R (max)/P DIf the maximum allowable value for θJA is found to be ≥136˚C/W for SOT-223package or ≥79˚C/W for TO-220package or ≥92˚C/W for TO-252package,no heatsink is needed since the package alone will dissipate enough heat to satisfy these requirements.If the calculated value for θJA falls below these limits,a heatsink is required.As a design aid,Table 1shows the value of the θJA of SOT-223and TO-252for different heatsink area.The copper patterns that we used to measure these θJA s are shown at the end of the Application Notes Section.Figure 7and Figure 8reflects the same test results as what are in the Table 1Figure 9and Figure 10shows the maximum allowable power dissipation vs.ambient temperature for the SOT-223and TO-252device.Figures Figure 11and Figure 12shows the maximum allowable power dissipation vs.copper area (in 2)for the SOT-223and TO-252devices.Please see AN1028for power enhancement techniques to be used with SOT-223and TO-252packages.*Application Note AN-1187discusses improved thermal per-formance and power dissipation for the LLP .TABLE 1.θJA Different Heatsink AreaLayout Copper AreaThermal ResistanceTop Side (in 2)*Bottom Side (in 2)(θJA ,˚C/W)SOT-223(θJA ,˚C/W)TO-25210.0123013610320.0660*******.30846040.530755450.76069526106647700.211584800.49870900.689631000.8825711017957120.0660.06612589130.1750.175937210091937FIGURE 5.Cross-sectional view of Integrated Circuit Mounted on a printed circuit board.Note that the case temperature is measured at the point where the leadscontact with the mounting pad surface 10091916FIGURE 6.Power Dissipation DiagramLM1117/LM1117IApplication Note(Continued)TABLE 1.θJA Different Heatsink Area (Continued)Layout Copper AreaThermal Resistance140.2840.2848361150.3920.3927555160.50.57053*Tab of device attached to topside copperL M 1117/L M 1117IApplication Note(Continued)10091913FIGURE7.θJA vs.1oz Copper Area for SOT-22310091934 FIGURE8.θJA vs.2oz Copper Area for TO-25210091912 FIGURE9.Maximum Allowable Power Dissipation vs.Ambient Temperature for SOT-22310091936FIGURE10.Maximum Allowable Power Dissipation vs.Ambient Temperature for TO-25210091914FIGURE11.Maximum Allowable Power Dissipation vs.1oz Copper Area for SOT-22310091935FIGURE12.Maximum Allowable Power Dissipation vs.2oz Copper Area for TO-252LM1117/LM1117IApplication Note(Continued)10091941FIGURE 13.Top View of the Thermal Test Pattern in Actual ScaleL M 1117/L M 1117IApplication Note(Continued)10091942FIGURE14.Bottom View of the Thermal Test Pattern in Actual Scale LM1117/LM1117ITypical ApplicationCircuits10091930Adjusting Output of Fixed Regulators10091931Regulator with Reference100919291.25V to 10V Adjustable Regulator with ImprovedRipple Rejection100919275V Logic Regulator with Electronic Shutdown*L M 1117/L M 1117ITypical ApplicationCircuits(Continued)10091932Battery Backed-Up Regulated Supply10091933Low Dropout Negative SupplyLM1117/LM1117IPhysical Dimensionsinches(millimeters)unless otherwise noted3-Lead SOT-223NS Package Number MP04A3-Lead TO-220NS Package Number T03BL M 1117/L M 1117IPhysical Dimensionsinches(millimeters)unless otherwise noted(Continued)3-Lead TO-263NS Package Number TS3BLM1117/LM1117IPhysical Dimensionsinches (millimeters)unless otherwise noted (Continued)3-Lead TO-252NS Package Number TD03B8-Lead LLPNS Package Number LDC08AL M 1117/L M 1117INotesLIFE SUPPORT POLICYNATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTORCORPORATION.As used herein:1.Life support devices or systems are devices orsystems which,(a)are intended for surgical implantinto the body,or (b)support or sustain life,andwhose failure to perform when properly used inaccordance with instructions for use provided in thelabeling,can be reasonably expected to result in asignificant injury to the user.2.A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system,or to affect its safety or effectiveness.BANNED SUBSTANCE COMPLIANCENational Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2)and the Banned Substances and Materials of Interest Specification (CSP-9-111S2)and contain no ‘‘Banned Substances’’as defined in CSP-9-111S2.National SemiconductorAmericas CustomerSupport CenterEmail:new.feedback@Tel:1-800-272-9959National Semiconductor Europe Customer Support Center Fax:+49(0)180-5308586Email:europe.support@ Deutsch Tel:+49(0)6995086208English Tel:+44(0)8702402171Français Tel:+33(0)141918790National Semiconductor Asia Pacific Customer Support Center Email:ap.support@ National Semiconductor Japan Customer Support Center Fax:81-3-5639-7507Email:jpn.feedback@ Tel: LM1117/LM1117I800mALow-DropoutLinearRegulator National does not assume any responsibility for use of any circuitry described,no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.。
lm1117 芯片中文资料
TO-263
温度范围
型号
封装标识
出货形式
0℃~125℃
LM1117MPX-ADJ N03A
编带和卷轴
LM1117MPX-1.8
N12A
编带和卷轴
LM1117MPX-2.5 LM1117MPX-2.85
N13A N04A
编带和卷轴 编带和卷轴
．
LM1117MPX-3.3 LM1117MPX-5.0
0.2
5 uA
0.5
%
长期稳定性 TA = 125℃, 1000 小时 RMS 输出噪声 VOUT 的百分比，10Hz≤f≤10kHz
0.3
%
0.003
%
-5-
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LM1117I 电气特性
符号
参数
条件
最小值 典型值 最大值 单位
4.950 4.900
5.000 5.050 V 5.000 5.100 V
0.035 0.2 %
LM1117-1.8
IOUT = 0mA, 3.2V≤VIN≤10V
1
6 mV
LM1117-2.5
IOUT = 0mA, 3.9V≤VIN≤10V
1
6 mV
-4-
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ａ
－LM1117I： -40℃~125℃
LM1117 电气特性
符号
参数
VREF
参考电压
VOUT
输出电压
－
条件
ａ 最小值 典型值 最大值
LM1117-ADJ IOUT = 10mA,VIN-VOUT =2V, TJ = 25℃
5v稳压芯片有哪些
5v稳压芯片有哪些
5V稳压芯片是一种常见的电子元器件，用于将电源输入的不
稳定电压转换为稳定的5V输出，广泛应用于各种电子设备中。
下面将介绍几种常用的5V稳压芯片。
1. LM7805
LM7805是一种线性稳压器，可将7-35V的电源输入转换为稳
定的5V输出。
它具有过流保护和过热保护功能，适用于各种
低功率电子设备。
2. AMS1117
AMS1117是一种低压差线性稳压器，输入电压范围可以在
6.5-12V之间，输出电流可达到1A。
它具有较低的额定输出电压偏置和较低的温度系数，适用于需要高精度和稳定性的应用。
3. LD1117
LD1117是一种低压差线性稳压器，输入电压范围可以在6.2-
20V之间，输出电流可达到800mA。
它具有低压差、过载保
护和短路保护等特点，并且具有低功耗和高效率。
4. L78S05CV
L78S05CV是一种可调节线性稳压器，输入电压范围可以在7-35V之间，输出电流可达到2A。
它具有过热和过流保护功能，并且具有低静态电流和高效的转换能力。
5. TS2950
TS2950是一种低压差线性稳压器，输入电压范围可以在2.5-
12V之间，输出电流可达到150mA。
它具有低功耗、短路保
护和低静态电流等特点，适合于低功率和低电压应用。
这些5V稳压芯片包括线性稳压器和可调节稳压器，适用于不同输入电压范围和输出电流需求的应用。
用户可以根据具体的应用需求选择合适的芯片，并结合其他电路元件实现稳定的
5V电压输出。
大牛实测对比：5种常见的1117稳压芯片性能
大牛实测对比：5种常见的1117稳压芯片性能在不同的电路板上都存在着同样的一种芯片——线性稳压器，也就是LDO。
它的作用非常简单，但是又很重要，就是把外界的输入电压转换成内部其他芯片需要的电压。
这个世界上的线性稳压器有成千上万种，即便是最有名的线性稳压器之一，也就是大家熟知的1117都有很多种。
它们来自不同的厂家，有着不同的价格。
比如，最常见的AMS1117来自于AMS这家公司；德州仪器也就是TI生产的TLV1117；安森美生产的NCP1117……当然，国内也有很多厂家，例如微盟的ME1117、长电的CJT1117等。
那么，这些1117芯片之间有什么区别呢？应该选贵的，还是选便宜的？1、测试前准备今天，我们就来评测一下五款1117芯片。
通过评测这些1117芯片，让大家对以下问题有更深入的认知，以及如何正确的使用线性稳压器。
线性稳压器的数据手册中，有哪些关键的参数，如何测试一颗线性稳压器。
首先要声明一下，这五颗1117芯片后面的四颗都是我从正规渠道购买的正规芯片。
只有AMS1117是我在淘宝上两毛钱买的。
我不太相信这是AMS 公司生产的，大概率应该是个仿造的山寨品，之所以还是把它放进来做评测，是因为它很便宜。
而且大部分人能买到的也就是这种山寨的AMS1117。
要使用1117，首先要明确的是电路图，你可能会觉得，1117的电路图有什么好明确的，不就是输入输出加个电容就可以了吗？那么让我们来看一下数据手册确实提供的参考电路，也就是输入输出各加一个电容。
但是在另外一个隐秘的角落里，有这么一段话，翻译成中文之后就是：输出电容要使用一颗钽电容，言外之意就是说他不能用这种陶瓷电容。
至于为什么一定要钽电容，一会儿会细讲，我就按照数据手册的要求，找到了一个合适的钽电容。
另外我也抽空画了一个测试的PCB，反正现在PCB打样也不要钱，在1117的输入输出各焊接一个电容之后，我们就可以开始测试了。
2、第一轮测试对于一个电压转换芯片来说，输出一个准确的电压是最起码的要求了。
1117c 芯片参数
1117c 芯片参数
1117c是一款固定电压三端集成稳压器芯片，其参数如下：
输入电压为9V，输出电压为1.2V-24V，在输入电压与输出电压之间压差为1V时，最大输出电流为1.5A。
它具有输出电压精度高、温度范围宽、电路简单、易于制造集成电路、安装方便等优点。
同时，它也有稳压电路的拓扑结构，在输入电压发生变化时，输出电压比较稳定，不易受负载变化的影响。
此外，它的封装形式有多种，如双列直插式、贴片式等，可以满足不同产品的需求。
在应用时，通常与外接电容、限流电阻、滤波电容等元件配合使用，以提高性能。
需要注意的是，在使用过程中，该芯片需要防止强烈的震动、冲击、高温和过高的湿度。
同时，为了安全起见，建议在输出端接上适当的去耦电容。
LD1117中文资料
LD1117
符号
测试条件
Vin=3.8V,Iout=10mA, Tj=25℃（图 1） Vin=3.1V∼12V, Iout=1mA∼1A,（图 1） Vin=3.8V,Tj=25℃ （图 1） Vin=3.8V,Iout =1mA， ΔT=0℃∼125℃，图 1 VKA =VREF, ΔVin=3.3V∼8V，图 1 ΔIout =1mA∼800mA, Vin=3.3V，图 1 图1 Vin>8V，图 1 Iout=0.1A,图 1 Iout=0.5A,图 1 Iout=1A,图 1 1% 6%
Vin=3.2V,Iout=10mA, Tj=25℃（图 1） Vin=2.5V∼12V, Iout=1mA∼1A,（图 1） Vin=3.2V,Tj=25℃ （图 1） Vin=3.2V,Iout =1mA， ΔT=0℃∼125℃，图 1 VKA =VREF, ΔVin=2.7V∼8V，图 1 ΔIout =1mA∼800mA, Vin=2.7V，图 1 图1 Vin>8V，图 1 Iout=0.1A,图 1 Iout=0.5A,图 1 Iout=1A,图 1 1% 7.5%
赛 普 微 电 子 有 限 公 司
Super Microelectronics
低压差线性稳压器
基本特性： � 此稳压源输入最高电压 16V。 � 提供固定电压输出 1.2V、1.5V、1.8V、2.5V、3.3V、5V 和可调电压输出。 � 输出电压精度可控制在 1%范围内。 � 较宽输出电流范围 1mA ~ 1A 。 SOT-223 PKG � 非常好线性调整率和负载调整率。 � 低开启电压。 � 提供封装 SOT-223，TO-252。 应用范围：
1000
mA mV/℃
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VIN=3V ΔVOUT LD1117 : IOUT=0 ~ 800mA
LD1117A : IOUT=0 ~ 1000mA
ΔVOUT
ΔVOUT 1000 hrs, TJ =125°C
VIN IOUT=100mA
IQ VIN≤10V
ILIMIT VIN=6.5V, TJ =25°C
LD1117 LD1117A
LD1117①L-xx-TQ3-②-③ LD1117①L-xx-S08-②-③
Note: Pin Assignment: I:VIN O:VOUT G:GND
Package
SOT-223 SOT-89 TO-220 TO-252 TO-263 TO-263-3 SOP-8
② Pin Assignment
Dropout Voltage
Thermal Regulation
SYMBOL
TEST CONDITIONS
VOUT VIN=3.5V, IOUT=10mA, TJ=25°C
VIN=3 to 8V
VOUT LD1117 : IOUT=0 ~ 800mA
LD1117A : IOUT=0 ~ 1.0A
ΔVOUT VIN=3 to 8V, IOUT=0mA
For LD1117/A-1.5 PARAMETER
Output Voltage
Output Voltagon
Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage Supply Voltage Rejection
LD1117/A
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER
SYMBOL
RATINGS
DC Input Voltage
VIN
18
Power Dissipation
PD
Internally limited
Junction Temperature
FEATURES
* Low dropout voltage * Suitable for SCSI-2 active termination if VOUT set to 2.85V * Output current up to 0.8A for 1117 and 1.0A for 1117A * Built-in current limit and over temperature protection * Available in ±1%(at 25°C) and 2% in all temperature range * Low current consumption
IOUT=1000 mA
Ta=25°C, 30ms Pulse
TYP. 1.200
1.200
1
1
0.5 0.3
5
2 100 75 1.00 1.15 1.20 1.20 0.01
MAX. 1.212 1.224
6 10
15 10
5
1.10 1.25 1.30 1.30 0.10
UNIT V
V
mV
mV
UNIT V
°C °C
RECOMMENDED OPERATING RATINGS
PARAMETER Input Voltage Operating Junction Temperature Range
SYMBOL VIN TJ
RATINGS 15
0 ~ +125
UNIT V °C
ELECTRICAL CHARACTERISTICS
Dropout Voltage
Thermal Regulation
IO(MIN) VIN=15V
eN B=10Hz to 10KHz, TJ =25°C
SVR IOUT=40mA, f=120Hz, TJ =25°C,
60
VIN=4.2V, VRIPPLE=1Vpp
IOUT=100mA
VD
IOUT=500mA IOUT=800mA
TJ
+150
Storage temperature
TSTG
-65 ~ +150
Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
LD1117 LD1117A
eN SVR
B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, VIN=5.5V, Vripple=1Vpp
Output Voltage
Line Regulation
Load Regulation
Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit
VOUT
VOUT
ΔVOUT
ΔVOUT VIN=3.3 to 8V, IOUT=0mA
ΔVOUT
VIN=3.3V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA
ΔVOUT ΔVOUT 1000 hrs, TJ =125°C
VIN IOUT=100mA IQ VIN≤8V
ILIMIT VIN=6.8V, TJ =25°C
2 of 12
QW-R102-006,Q
LD1117/A
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
3 of 12
QW-R102-006,Q
LD1117①-xx-TA3-②-③ LD1117①-xx-TN3-②-③ LD1117①-xx-TQ2-②-③
LD1117①L-xx-TA3-②-③ LD1117①L-xx-TN3-②-③ LD1117①L-xx-TQ2-②-③
LD1117①-xx-TQ3-②-③ LD1117①-xx-S08-②-③
③ Packing
A: GOI B: OGI C: GIO D: IGO
R: Tape Reel T: Tube
GOOIxOOx
Copyright © 2005 Unisonic Technologies Co., Ltd
1 of 12
QW-R102-006,Q
Note: Current code: Blank: 0.8A A: 1A
PIN CONFIGURATION
GND 1
VOUT
2
VOUT
3
VIN
4
LINEAR INTEGRATED CIRCUIT
MARKING
8 NC
7
VOUT
6 VOUT
5 NC
UNISONIC TECHNOLOGIES CO., LTD
Dropout Voltage
Thermal Regulation
SYMBOL
TEST CONDITIONS
VOUT VIN=3.8V, IOUT=10mA, TJ =25°C
VOUT
VIN=3.3 to 8V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA
LD1117/A
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
SOT-89
SOT-223
TO-220 TO-252 TO-263 TO-263-3
12 :1.2V 15 :1.5V 18 :1.8V 25 :2.5V 2J :2.85V 30 :3.0V 33 :3.3V 36 :3.6V 50 :5.0V AD :ADJ
ΔVOUT
ΔVOUT ΔVOUT
VIN IQ ILIMIT
VIN=3.2V, IOUT=10mA, TJ=25°C VIN=2.7 to 8V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1.0A VIN=2.7 to 8V, IOUT=0mA VIN=2.7V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA
(Ta=25℃, refer to the test circuits, TJ=0 to 125°C, Co=10μF unless otherwise specified)
For LD1117/A-1.2
PARAMETER
SYMBOL
TEST CONDITIONS
MIN.
Output Voltage
% % V mA mA
mA μV dB V V V V %/W
UNISONIC TECHNOLOGIES CO., LTD
4 of 12
QW-R102-006,Q
LD1117/A
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)