IL1117-1.5中文资料

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LT1117IST资料

12LT1117-3.3/LT1117-5Input VoltageOperating VoltageLT1117, LT1117-3.3, LT1117-5......................15V LT1117-2.85...................................................10V Surge VoltageLT1117, LT1117-3.3, LT1117-5 (20V)Operating JunctionTemperature RangeC Grade .................................................0°C to 125°C I Grade .............................................–40°C to 125°C Storage Temperature Range.................–65°C to 150°C Lead Temperature...................(See Soldering Methods)ABSOLUTE AXI U RATI GSW W WU PACKAGE/ORDER I FOR ATIOU U W(Note 1)LT1117-3.3/LT1117-534LT1117-3.3/LT1117-5C C HARA TERISTICSU WA TYPICAL PERFOR CE LT1117-5Line Transient ResponseLT1117-2.8Line Transient ResponseLT1117 Ripple RejectionL T1117 Ripple Rejection vs CurrentTemperature StabilityLT1117-2.85LT1117-5A djust Pin CurrentLoad Transient ResponseLoad Transient ResponseTEMPERATURE (°C)–500A J U S T P I N C U R R E N T (µA )205010050100150LT1117 • TPC0880–252575125103040607090TIME (µs)L O A D C U R R E N T (A )205070100LT1117 • TPC09103060804090O U P U T V O L T A G ED E V I A T I O N (V )TIME (µs)L O A D C U R R E N T (A )205070100LT1117 • TPC10103060804090O U P U T V O L T A G E D E V I A T I O N (V )TIME (µs)I N P U T V O L T A G E (V )40100140200LT1117 • TPC11206012016080180O U P U T V O L T A G E D E V I A T I O N (m V )TIME (µs)I N P U T V O L T A G E (V )40100140200LT1117 • TPC12206012016080180O U P U T V O L T A G E D E V I A T I O N (m V )FREQUENCY (Hz)20R I PP L E R E J E C T I O N (d B )406080100101k 10k 100kLT1117 • TPC051009070503010OUTPUT CURRENT (A)0R I P P L E R E J E C T I O N (d B )203050801000.20.40.60.8LT1117 • TPC061040607090TEMPERATURE (°C)–50–2.0O U T P U T V O L T A G E C H A N G E (%)–1.02.050100150LT1117 • TPC071.0–252575125LT1117-3.3/LT1117-556LT1117-3.3/LT1117-5The adjust pin can be driven, on a transient basis, ±25V with respect to the output without any device degradation.Diodes between input and output are not usually needed.The internal diode between the output and input pins of the device can withstand microsecond surge currents of 10A to 20A. Normal power supply cycling can not generate currents of this magnitude. Only with extremely large output capacitors, such as 1000µF and larger, and with the input pin instantaneously shorted to ground can damage occur. A crowbar circuit at the input of the LT1117 in combination with a large output capacitor could generate currents large enough to cause damage. In this case a diode from output to input is recommended, as shown in Figure 1.to set the overall output voltage. Normally this current is chosen to be the specified minimum load current of 10mA.Because I ADJ is very small and constant when compared to the current through R1, it represents a small error and can usually be ignored. For fixed voltage devices R1 and R2 are included in the device.Load RegulationBecause the LT1117 is a 3-terminal device, it is not possible to provide true remote load sensing. Load regu-lation will be limited by the resistance of the wire connect-ing the regulator to the load. The data sheet specification for load regulation is measured at the output pin of the device. Negative side sensing is a true Kelvin connection,with the bottom of the output divider returned to the negative side of the load. Although it may not be immedi-ately obvious, best load regulation is obtained when the top of the resistor divider (R1) is returned directly to the output pin of the device, not to the load. This is illustrated in Figure 3. Connected as shown, R P is not multiplied by the divider ratio. If R1 were connected to the load, the effective resistance between the regulator and the load would be:R R R R R P P ×+=211,Parasitic Line Resistance Figure 2. Basic Adjustable RegulatorOutput VoltageThe LT1117 develops a 1.25V reference voltage between the output and the adjust terminal (see Figure 2). By placing a resistor between these two terminals, a constant current is caused to flow through R1 and down through R2Figure 1D11N4002FV OUT VLT1117 • TA03V OUTVFigure 3. Connections for Best Load RegulationV R LFor fixed voltage devices the top of R1 is internally Kelvinconnected, and the ground pin can be used for negative side sensing.APPLICATIO HI TSU ULT1117-3.3/LT1117-5Thermal ConsiderationsLT1117 series regulators have internal thermal limiting circuitry designed to protect the device during overload conditions. For continuous normal load conditions how-ever, the maximum junction temperature rating of 125°C must not be exceeded.It is important to give careful consideration to all sources of thermal resistance from junction to ambient. For the SOT-223 package, which is designed to be surface mounted, additional heat sources mounted near the de-vice must also be considered. Heat sinking is accom-plished using the heat spreading capability of the PC board and its copper traces. The thermal resistance of the LT1117 is 15°C/W from the junction to the tab. Thermal resistances from tab to ambient can be as low as 30°C/W. The total thermal resistance from junction to ambient can be as low as 45°C/W. This requires a reasonable sized PC board with at least one layer of copper to spread the heat across the board and couple it into the surrounding air. Experiments have shown that the heat spreading copper layer does not need to be electrically connected to the tab of the device. The PC material can be very effective at transmitting heat between the pad area, attached to the tab of the device, and a ground plane layer either inside or on the opposite side of the board. Although the actual thermal resistance of the PC material is high, the Length/Area ratio of the thermal resistor between layers is small. The data in Table 1 was taken using 1/16" FR-4 board with 1oz. copper foil. It can be used as a rough guideline in estimating thermal resistance.Table 1.COPPER AREA THERMAL RESISTANCE TOPSIDE*BACKSIDE BOARD AREA(JUNCTION-TO-AMBIENT) 2500 Sq. mm2500 Sq. mm2500 Sq. mm45°C/W1000 Sq. mm2500 Sq. mm2500 Sq. mm45°C/W225 Sq. mm2500 Sq. mm2500 Sq. mm53°C/W100 Sq. mm2500 Sq. mm2500 Sq. mm59°C/W1000 Sq. mm1000 Sq. mm1000 Sq. mm52°C/W1000 Sq. mm01000 Sq. mm55°C/W* Tab of device attached to topside copper The thermal resistance for each application will be affected by thermal interactions with other components on the board. Some experimentation will be necessary to deter-mine the actual value.The power dissipation of the LT1117 is equal to:P D = ( V IN – V OUT )( I OUT )Maximum junction temperature will be equal to:T J=T A(MAX) + P D(Thermal Resistance (junction-to-ambient))Maximum junction temperature must not exceed 125°C. Ripple RejectionThe curves for Ripple Rejection were generated using an adjustable device with the adjust pin bypassed. These curves will hold true for all values of output voltage. For proper bypassing, and ripple rejection approaching the values shown, the impedance of the adjust pin capacitor, at the ripple frequency, should be < R1. R1 is normally in the range of 100Ω to 200Ω. The size of the required adjust pin capacitor is a function of the input ripple frequency. At 120Hz, with R1 = 100Ω, the adjust pin capacitor should be >13µF. At 10kHz only 0.16µF is needed.For fixed voltage devices, and adjustable devices without an adjust pin capacitor, the output ripple will increase as the ratio of the output voltage to the reference voltage (V OUT/V REF). For example, with the output voltage equal to 5V, the output ripple will be increased by the ratio of 5V/1.25V. It will increase by a factor of four. Ripple rejection will be degraded by 12dB from the value shown on the curve.APPLICATIO HI TSU U78LT1117-3.3/LT1117-51.2V to 10V Adjustable Regulator5V Regulator with ShutdownRemote SensingAdjusting Output Voltage of Fixed RegulatorsRegulator with ReferenceLT1117 • TA05FV OUT †V V OUT = 1.25V 1 + R2—R1NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS* † ()µF5VVVµF5V TO 10V V IN 10LT1117 • TA05* OPTIONAL IMPROVES RIPPLE REJECTIONµF10V V IN 10TYPICAL APPLICATIO SULT1117-3.3/LT1117-5910LT1117-3.3/LT1117-5High Efficiency Dual Linear SupplyLow Dropout Negative SupplyLT1117 • TA12*MDA L1 = 1 % FILM RESISTORS = MOTOROLA= PULSE ENGINEERING, INC. #PE-92106LT1117 • TA13= –5VTYPICAL APPLICATIO SU11LT1117/LT1117-2.85LT1117-3.3/LT1117-5Information furnished by Linear Technology Corporation is believed to be accurate and reliable.However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.12LT1117/LT1117-2.85LT1117-3.3/LT1117-5© LINEAR TECHNOLOGY CORPORA TION 1993sn1117 1117fcs LT/TP 0500 2K REV C • PRINTED INUSAHigh Efficiency RegulatorµF28V INPUTTYPICAL APPLICATIOULinear Technology Corporation1630 McCarthy Blvd., Milpitas, CA 95035-7417(408) 432-1900 q FAX: (408) 434-0507 q RELATED PARTSPART NUMBER DESCRIPTIONCOMMENTSLT1120125mA Low Dropout Regulator with 20µA I Q Includes 2.5V Reference and Comparator LT1121150mA Micropower Low Dropout Regulator 30µA I Q , SOT-223 Package LT1129700mA Micropower Low Dropout Regulator 50µA Quiescent CurrentLT1175500mA Negative Low Dropout Micropower Regulator 45µA I Q , 0.26V Dropout Voltage, SOT-223 Package LT1374 4.5A, 500kHz Step-Down Converter4.5A, 0.07Ω Internal Switch, SO-8 Package LT1521300mA Low Dropout Micropower Regulator with Shutdown 15µA I Q , Reverse Battery Protection LT1573UltraFast TM Transient Response Low Dropout Regulator Drives External PNPLT1575UltraFast Transient Response Low Dropout Regulator Drives External N-Channel MOSFET LT1735Synchronous Step-Down ConverterHigh Efficiency, OPTI-LOOP TM CompensationLT1761 Series 100mA, Low Noise, Low Dropout Micropower Regulators in SOT-2320µA Quiescent Current, 20µV RMS Noise, SOT-23 Package LT1762 Series 150mA, Low Noise, LDO Micropower Regulators 25µA Quiescent Current, 20µV RMS Noise, MSOP Package LT1763 Series 500mA, Low Noise, LDO Micropower Regulators 30µA Quiescent Current, 20µV RMS Noise, SO-8 Package LT1764 Series 3A, Low Noise, Fast Transient Response LDO 40µV RMS Noise, DD and TO-220 Packages LT1962300mA, Low Noise, LDO Micropower Regulator 20µV RMS Noise, MSOP Package LT19631.5A, Low Noise, Fast Transient Response LDO40µV RMS Noise, SOT-223 PackageUltraFast and OPT-LOOP are trademarks of Linear Technology Corporation.。

IP1117L中文资料

LDO Regulator with Adjustable and Fixed 1.8V, 2.5V,3.3V,5.0VThe IP1117 is a series of low dropout voltage regula-tors which can provide up to 1.0A of output current. The IP1117 is available in four fixed voltages, 1.8V,2.5V,3.3V and 5.0V. In addition, it is also avail-able in adjustable version. On chip precision trimming adjusts the reference/output voltage to within ±2%. Current limit is also trimmed to ensure specified out-put current and controlled short-circuit currentThe IP1117 series is available in SOT -223 power packages.- Adjustable and Fixed of 1.8V, 2.5V, 3.3V,5.0V - Space saving SMD types of SOT -223 - 1.0A Output Current capability - 1.1V drop-out voltage - Foldback current limiting - Thermal protection - Over current protectionDESCRIPTIONFEATURESDevice Package Operating TempIP1117/ IP1117L SOT-223 IP1117-18/IP1117L-18 SOT-223 IP1117-25/ IP1117L-25 SOT-223 IP1117-33/ IP1117L-33 SOT-223 IP1117-50/ IP1117L-50 SOT-223-35O C ~ +125O C ORDERING INFORMATIONSOT-223- Post Regulator for Switching DC/DC Converter - CD Media- Battery Charger- Battery Powered EquipmentsAPPLICATIONSTYPICAL APPLICATION CIRCUITSL means Lead-freeLDO Regulator with Adjustable and Fixed 1.8V, 2.5V,3.3V,5.0VPIN DESCRIPTIONSNO SYMBOL I/O DESCRIPTION1 ADJ/GND - Adjustable or Power Ground2 OUT O Output 3INIInputPIN CONNECTIONSABSOLUTE MAXIMUM RATINGSParameter Symbol Value Units Input Voltage Vinmax 18 VJunction Temperature Tj -35 ~ +125 OC Storage TemperatureTstg-55 ~ +150OCAbsolute Maximum Safe Operating AreaO u t p u t C u r r e n t (A )Vin - Vout (V)2 4 6 8 10 12 14 16 18 20LDO Regulator with Adjustable and Fixed 1.8V, 2.5V,3.3V,5.0V Electrical CharacteristicsParameter Symbol Test Conditions Min. Typ. Max. UnitsReference Voltage Vref IP1117 Only1.5V < (Vin - Vout) < 7V, Io=10mA1.225 1.250 1.275 VOutput Voltage IP1117-1810mA < Iout < 1A,3.3V < Vin < 10V1.764 1.800 1.836 VIP1117-2510mA < Iout < 1A,4.0V < Vin < 10V2.45 2.50 2.55 VIP1117-3310mA < Iout < 1A,4.75V < Vin < 10V3.234 3.300 3.366 VIP1117-5010mA < Iout < 1A,6.5V < Vin < 12V4.95.0 5.1 VLine Regulation dVout1 IP1117Iout = 10mA,1.5V < Vin - Vout < 12V- 0.035 0.2 %IP1117-18Iout = 10mA,3.3V < Vin < 15V- 1 4 mVIP1117-25Iout = 10mA,4.0V < Vin < 15V- 1 5 mVIP1117-33Iout = 10mA,4.75V < Vin < 15V- 1 7 mVIP1117-50Iout = 10mA,6.5V < Vin < 15V- 1 10 mVVout( Vin= 5V, Co=10uF, Ta = 25O C, unless otherwise specified.)LDO Regulator with Adjustable and Fixed 1.8V, 2.5V,3.3V,5.0VELECTRICAL CHARACTERISTICSParameter Symbol Test ConditionsMin. Typ. Max. UnitsLoad Regulation IP1117Vin - Vout = 2.0V, 10mA < Iout < 1A - 0.05 0.5 %IP1117-18 Vin = 3.8V,10mA < Iout < 1A- 1 9 mVIP1117-25 Vin = 4.5V,10mA < Iout < 1A - 1 12 mVIP1117-33 Vin = 5.3V,10mA < Iout < 1A - 1 16 mVIP1117-50 Vin = 7.0V,10mA < Iout < 1A - 1 25 mVDropout voltage VdropIout = 100mA- 1.0 1.15 V Iout = 1A- 1.1 1.25 V Quiescent current Iq Vin < 12V- 5 10 mA Ripple Rejection RR f = 120Hz, Cout = 22uF Tantalum, (Vin-Vout) = 3V, Vripple=1.0Vpp 60 72 - dB Current Limit Ilimit Vin - Vout = 2V 1 1.5 - A Adjust Pin Current Iadj-35-100uAAdjust Pin Current ChangeIchg 10mA < Iout < 1A1.5V < Vin - Vout < 12V 0.2 5 uAMinimum Load Cur-rentImin Only IP1117 10 - - mA Long Term StabilityStableTa=125O C, 1000hrs0.031.0%dVout2( Vin= 5V, Co=10uF, Ta = 25O C, unless otherwise specified.)LDO Regulator with Adjustable and Fixed 1.8V, 2.5V,3.3V,5.0V ELECTRICAL CHARACTERISTICSParameter Symbol Test Conditions Min. Typ. Max. Units RMS Output Noise Vn 10Hz < f < 10kHz - 0.003 - % Thermal Shutdown Tsd Junction Temperature - 150 - O CThermal Shutdown Hysteresis Thys - 10 - O C( Vin= 5V, Co=10uF, Ta = 25O C, unless otherwise specified.)LDO Regulator with Adjustable and Fixed 1.8V, 2.5V,3.3V,5.0V APPLICATION SUMMARY- Calculation of adjustable output voltageVaExample) R1=125 ohm, R2=25 ohmLDO Regulator with Adjustable and Fixed 1.8V, 2.5V,3.3V,5.0VELECTRICAL CHARACTERISTICS CURVESICC (mA)VCC (V)ICC vs VCCVdrop (V)IO (A)Vdrop vs IOQuiescent current vs VccDrop out voltage vs IOLDO Regulator with Adjustable and Fixed 1.8V, 2.5V,3.3V,5.0VELECTRICAL CHARACTERISTICS CURVES (Continued)IO (A)Vload (mV)Vload vs IOLoad regulation vs IOLDO Regulator with Adjustable and Fixed 1.8V, 2.5V,3.3V,5.0VELECTRICAL CHARACTERISTICS CURVES (Continued)ICC (mA)TemperatureICC vs TEMPQuiescent current vs TemperatureOutput voltage vs TemperatureTemperatureVout (V)Vout vs TEMPLDO Regulator with Adjustable and Fixed 1.8V, 2.5V,3.3V,5.0VELECTRICAL CHARACTERISTICS CURVES (Continued)Load regulation vs TemperatureDrop out voltage vs TemperatureVload (mV)Vload vs TEMPTemperatureVdrop (V)Vdrop vs TEMP- 11 - Jan. 2005 (Rev.5) IP1117/IP1117-18/IP1117-25/IP1117-33/IP1117-50 LDO Regulator with Adjustable and Fixed 1.8V, 2.5V,3.3V,5.0VPACKAGE DIMENSIONSOT-223元器件交易网。

TIL117X中文资料

元器件交易网
TIL111X, TIL114X, TIL116X, TIL117X TIL111, TIL114, TIL116, TIL117
OPTICALLY COUPLED ISOLATOR PHOTOTRANSISTOR OUTPUT
APPROVALS l UL recognised, File No. E91231 'X' SPECIFICATION APPROVALS l TIL111X is VDE 0884 approved in 3 available lead forms : - STD - G form - SMD approved to CECC 00802 TIL114X, TIL116X, TIL117X : VDE 0884 pending l TIL111X is certified to EN60950 by the following Test Bodies :Nemko - Certificate No. P96101299 Fimko - Registration No. 190469-01..22 Semko - Reference No. 9620076 01 Demko - Reference No. 305567 TIL114X, TIL116X, TIL117X : EN60950 pending DESCRIPTION The TIL111, TIL114, TIL116, TIL117 series of optically coupled isolators consist of infrared light emitting diode and NPN silicon photo transistor in a standard 6 pin dual in line plastic package. FEATURES l Options :10mm lead spread - add G after part no. Surface mount - add SM after part no. Tape&reel - add SMT&R after part no. l High Isolation Voltage (5.3kVRMS ,7.5kVPK ) APPLICATIONS l DC motor controllers l Industrial systems controllers l Signal transmission between systems of different potentials and impedances

LM1117_3.3中文PDF资料

X1117 内部集成过热保护和限流电路，适用于各类
电子产品。
特点
* 固定输出电压为 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 的输出电压精度为 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
0≤IOUT≤1A, 3.2V≤VIN≤10V VOUT
X1117 -2.5,
1.764 1.800 1.836
IOUT=10mA, VIN=4.5V,TJ=25°C , 2.475 2.500 2.525 V
0≤IOUT≤1A, 3.9V≤VIN ≤10V
2.450 2.500 2.550
X1117 -3.3,
范围 20 260 150
-65 ~ +150 内部限制 (注1)
2000
单位 V °C °C °C
mW V
注1：最大允许功耗是最大工作结温TJ (max)，结对空热阻θJA 和环境温度Tamb的函数。最大允许功耗在给定的环境温度下， PD (max) = (TJ (max) - Tamb)/θJA，超过最大允许功耗会导致芯片温度过高，调整器因此会进入到过热切断状态。不同封装类型的结对空热阻θJA 是不同的，由封装技术决定。
应用
* 膝上型电脑，掌上电脑和笔记本电脑
* 电池充电器 * SCSI-II主动终端 * 移动电话 * 无绳电话 * 电池供电系统 * 便携式设备 * SMPS波斯特稳压器
产品规格分类（温度范围：-40°C~ 125°C）
X1117
产品名称 X 1117H- ADJTR X 1117H- 1.8TR X 1117H- 3.3TR X 1117H- ADJTR X 1117H- 1.8TR X 1117H- 3.3TR

LM1117中文资料

2.850 2.880 V 2.850 2.910 V 2.850 2.910 V
3.300 3.333 V 3.300 3.365 V
5.000 5.050 V 5.000 5.100 V
0.035 0.2 %
1
6 mV
1
6 mV
-4-
符号
参数
条件
∆VOUT 线性调整率
LM1117-2.85 IOUT = 0mA, 4.25V≤VIN≤10V
LM1117/LM1117I－800mA 低压差线性调压器
概述
LM1117 是一个低压差电压调节器系列。其压差在 1.2V 输出，负载电流为 800mA 时为 1.2V。它与国家半导体的工业标准器件 LM317 有相同的管脚排列。LM1117 有可调电压的版本，通过 2 个外部电阻可实现 1.25～13.8V 输出电压范围。另外还有 5 个固定电压输出（1.8V、2.5V、2.85V、3.3V 和 5V）的型号。
3.300 3.333 V 3.300 3.432 V
5.000 5.050 V 5.000 5.200 V
0.035 0.3 %
1
10 mV
1
15 mV
0.2
0.5 %
1
15 mV
1 1.10 1.15 1.20 1200 1.7
5 5 0.01 60
1.238 1.225
LM1117-1.8 IOUT = 10mA,VIN-VOUT =3.8V, TJ = 25℃ 0≤IOUT≤800mA, 3.2V≤VIN≤10V LM1117-2.5 IOUT = 10mA,VIN-VOUT =4.5V, TJ = 25℃ 0≤IOUT≤800mA, 3.9V≤VIN≤10V LM1117-2.85 IOUT = 10mA,VIN-VOUT =4.85V, TJ = 25℃ 0≤IOUT≤800mA, 4.25V≤VIN≤10V 0≤IOUT≤500mA, VIN = 4.1V LM1117-3.3 IOUT = 10mA,VIN-VOUT =5V, TJ = 25℃ 0≤IOUT≤800mA, 4.75V≤VIN≤10V LM1117-5.0 IOUT = 10mA,VIN-VOUT =7V, TJ = 25℃ 0≤IOUT≤800mA, 6.5V≤VIN≤12V LM1117-ADJ IOUT = 10mA, 1.5V≤VIN-VOUT≤13.75V LM1117-1.8 IOUT = 0mA, 3.2V≤VIN≤10V LM1117-2.5 IOUT = 0mA, 3.9V≤VIN≤10V

LM1117-1.5中文资料

IOUT=10mA, VIN=3.8V, TJ=25°C , 1.782 1.800 1.818 V
0≤IOUT≤1A, 3.2V≤VIN≤10V
1.764 1.800 1.836
AMS1117-2.5,
IOUT=10mA, VIN=4.5V,TJ=25°C , 2.475 2.500 2.525 V
0≤ IOUT≤1A, 6.5V≤VIN≤12V
4.900 5.000 5.10
TSOUT
Rline
VINMIN ≤VIN≤ 12V, VOUT=Fixed/Adj,
IOUT=10mA
0.3
%
3
7 mV
Rload Vdrop
Iq
10mA≤IOUT≤ 1A,VOUT=Fixed/Adj IOUT=100mA IOUT=500mA IOUT=1A 4.25V≤VIN≤ 6.5V
共10页第4页
管脚排列图
AMS1117
AMS1117
AMS1117
AMS1117
AMS1117
AMS1117
管脚描述
管脚号 1 2 3
管脚名称 GND/ADJ
VOUT VIN
I/O
--/O 地/ADJ。
O
输出电压。
I
输入工作电压。
功能
ADVANCED MONOLITHIC SYSTEMS (translate by BONA 0755-82800289)
内框图
ADVANCED MONOLITHIC SYSTEMS (translate by BONA 0755-82800289)
共10页第2页
AMS1117
极限参数
参数输入工作电压引脚温度 (焊接5秒) 工作结温范围储存温度功耗 ESD能力 (最小值)

LM1117IDTX-5.0中文资料

LM1117/LM1117I800mA Low-Dropout Linear RegulatorGeneral DescriptionThe LM1117is 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 Regulator10091928April 2006LM1117/LM1117I 800mA Low-Dropout Linear Regulator©2006National Semiconductor Corporation Ordering InformationPackage 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 2Block Diagram10091901Connection 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 4LM1117Electrical Characteristics(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 Electrical 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,−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:The maximum 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 Performance Characteristics(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 outputset resistor R2and sets the output voltage to the desiredlevel.For fixed voltage devices,R1and R2are integrated insidethe 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 pinscan 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 D If 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)10091913 FIGURE7.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 Application Circuits10091930Adjusting 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 Application Circuits(Continued)10091932Battery Backed-Up Regulated Supply10091933Low Dropout Negative Supply LM1117/LM1117IPhysical Dimensionsinches (millimeters)unless otherwise noted3-Lead SOT-223NS Package Number MP04A3-Lead TO-220NS Package Number T03BL M 1117/L M 1117IPhysical Dimensions inches(millimeters)unless otherwise noted(Continued)3-Lead TO-263NS Package Number TS3B LM1117/LM1117IPhysical Dimensionsinches (millimeters)unless otherwise noted (Continued)3-Lead TO-252NS Package Number TD03B8-Lead LLPNS Package Number LDC08AL M 1117/L M 1117INotesNational 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.For the most current product information visit us at .LIFE 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 SEMICONDUCTOR CORPORATION.As used herein:1.Life support devices or systems are devices or systemswhich,(a)are intended for surgical implant into the body,or(b)support or sustain life,and whose failure to perform whenproperly used in accordance with instructions for use provided in the labeling,can be reasonably expected to result in a significant injury to the user.2.A critical component is any component of a life supportdevice 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 manufactures products and uses packing materials that 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.Leadfree products are RoHS compliant.National Semiconductor Americas CustomerSupport CenterEmail:new.feedback@ Tel:1-800-272-9959National SemiconductorEurope Customer Support CenterFax:+49(0)180-5308586Email:europe.support@Deutsch Tel:+49(0)6995086208English Tel:+44(0)8702402171Français Tel:+33(0)141918790National SemiconductorAsia Pacific CustomerSupport CenterEmail:ap.support@National SemiconductorJapan Customer Support CenterFax:81-3-5639-7507Email:jpn.feedback@Tel:81-3-5639-7560 LM1117/LM1117I 800mA Low-Dropout Linear Regulator元器件交易网。

CJB1117-5.0中文资料

JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD1A LOW DROPOUT LINEAR REGULATORGENERAL DESCRIPTIONThe CJ1117 is a series of low dropout three-terminal regulators with a dropout of 1.15V at 1A output current.The CJ1117 series provides current limiting and thermal shutdown. Its circuit includes a trimmed bandgap reference to assure output voltage accuracy to be within 1%. Current limit is trimmed to ensure specified output Current and controlled short-circuit current. On-chip thermal shutdown provides protection against any combination of overload and ambient temperature that would create excessive junction temperature.The CJ1117 has an adjustable version, that can provide the output voltage from 1.25V to 12V with only 2 external resistors.The CJ1117 series is available in the industry standard SOT-223,SOT-89,TO-220,TO-252 and TO-263 power packages.FEATURES• Low Dropout Voltage: 1.15V at 1A Output Current• Trimmed Current Limit• On-Chip Thermal Shutdown• Three-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 3.3V, 5V• Operation junction Temperature: 0 ℃ to125℃APPLICATIONS• PC Motherboard• LCD Monitor• Graphic Card• DVD-Video player• NIC/Switch• Telecom Modem• ADSL Modem• Printer and other peripheral EquipmentJIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD1A LOW DROPOUT LINEAR REGULATOR PIN CONFIGURATIONST Package A Package(SOT-223) (SOT-89)P Package U Package(TO-220) (TO-252)B Package D Package(TO-263) (TO-251)Figure 2. Pin Configurations of CJ1117JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD1A LOW DROPOUT LINEAR REGULATOR FUNCTIONAL BLOCK DIAGRAMFigure 3. Functional Block Diagram of CJ1117JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTDORDERING INFORMATIONNumber Package TemperatureRange PartCJT1117-ADJCJT1117-1.5CJT1117-1.8SOT-223 0 to 125℃CJT1117-2.5CJT1117-3.3CJT1117-5.0CJA1117-ADJCJA1117-1.5CJA1117-1.8SOT-89 0 to 125℃CJA1117-2.5CJA1117-3.3CJA1117-5.0CJP1117-ADJCJP1117-1.5CJP1117-1.8TO-220 0 to 125℃CJP1117-2.5CJP1117-3.3CJP1117-5.0CJU1117-ADJCJU1117-1.5CJU1117-1.8TO-252 0 to 125℃CJU1117-2.5CJU1117-3.3CJU1117-5.0CJB1117-ADJCJB1117-1.5CJB1117-1.8TO-263 0 to 125℃CJB1117-2.5CJB1117-3.3CJB1117-5.0CJD1117-ADJCJD1117-1.5CJD1117-1.8TO-251 0 to 125℃CJD1117-2.5CJD1117-3.3CJD1117-5.0CJ Χ 1117- ZADJ: Adjustable OutputPackage Circuit Type 1.5: Fixed Output 1.5VT: SOT-223 U: TO-252 1.8: Fixed Output 1.8VA: SOT-89 B: TO-263 2.5: Fixed Output 2.5VJIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD1A LOW DROPOUT LINEAR REGULATORABOSLUTE MAXIMUM RATINGS (NOTE 1)Parameter Value UnitV IN20 VMaximum Junction Temperature 150 ℃Storage Temperature Range -65 to 150 ℃Lead Temperature (Soldering, 10sec.) 300 ℃ESD (Machine Model) 600 VNote 1: Su=tresses greater than those listed under ”Absolute Maximum Ratings” may cause permanent damage tothe device. These are stress ratings only, and functional of the device at these or any other conditions beyond thoseindicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” forextended periods may affect device reliability.RECOMMENDED OPERATING CONDITIONSParameter MinUnitMaxV IN 15 VOperating Junction Temperature Range 0 125 ℃JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD1A LOW DROPOUT LINEAR REGULATORELECTRICAL CHARACTERISTICSOperating Conditions: V IN ≤10V, T J =25℃ unless otherwise specified. Parameter Conditions MinTyp Max Unit Reference Voltage CJ1117-ADJ I OUT =10mA, =2V,10mA ≤I OUT ≤1A, 1.4V ≤V IN -V OUT ≤8V, P ≤ Maximum power Dissipation1.238 1.225 1.250 1.250 1.262 1.270 VCJ1117-1.5,I OUT =10mA, V IN =3.5V10mA ≤I OUT ≤1A, 3.0V ≤V IN ≤10V 1.485 1.470 1.5 1.5 1.515 1.530 V CJ1117-1.8, I OUT =10mA, V IN =3.8V 10mA ≤I OUT ≤1A, 3.2V ≤V IN ≤10V 1.782 1.746 1.8 1.8 1.818 1.854 V CJ1117-2.5, I OUT =10mA, V IN =4.5V 10mA ≤I OUT ≤1A, 3.9V ≤V IN ≤10V 2.475 2.450 2.5 2.5 2.525 2.550 V CJ1117-3.3, I OUT =10mA, V IN =5.0V 10mA ≤I OUT ≤1A, 4.75V ≤V IN ≤10V 3.267 3.235 3.3 3.3 3.333 3.365 V Output Voltage CJ1117-5.0, I OUT =10mA, V IN =7.0V 10mA ≤I OUT ≤1A, 6.5V ≤V IN ≤12V4.950 4.9005.0 5.05.050 5.100VCJ1117-ADJIOUT=10mA, 1.5V ≤V IN -V OUT ≤10V 0.035 0.2 % CJ1117-1.5IOUT=10mA, 1.5V ≤V IN -V OUT ≤10V 1 6 mV CJ1117-1.8IOUT=10mA, 1.5V ≤V IN -V OUT ≤10V 1 6 mV CJ1117-2.5IOUT=10mA, 1.5V ≤V IN -V OUT ≤10V 1 6 mV CJ1117-3.3IOUT=10mA, 1.5V ≤V IN -V OUT ≤10V 1 6 mV Line Regulation CJ1117-5.0IOUT=10mA, 1.5V ≤V IN -V OUT ≤10V1 6 mV CJ1117-ADJV IN -V OUT =2V, 10mA ≤I OUT ≤1A 0.2 0.4 % CJ1117-1.5V IN -V OUT =2V, 10mA ≤I OUT ≤1A 1 10 mV CJ1117-1.8V IN -V OUT =2V, 10mA ≤I OUT ≤1A 1 10 mV CJ1117-2.5V IN -V OUT =2V, 10mA ≤I OUT ≤1A 1 10 mV CJ1117-3.3V IN -V OUT =2V, 10mA ≤I OUT ≤1A 1 10 mV Load Regulation CJ1117-5.0V IN -V OUT =2V, 10mA ≤I OUT ≤1A1 15 mVJIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD1A LOW DROPOUT LINEAR REGULATORELECTRICAL CHARACTERISTICS (CONTINUED)Operating Conditions: V IN ≤10V, T J =25℃ unless otherwise specified.Parameter Conditions Min Typ Max Unit ∆V REF =1%, IOUT =0.1A 1.00 1.1 V∆V REF =1%, I OUT =0.5A 1.08 1.18 V Dropout Voltage ∆V REF =1%, I OUT =1.0A 1.15 1.25 VCurrent Limit V IN -V OUT =2V 1.25 1.35 A Adjust Pin Current 60 120 µA Adjust Pin Current Change 1.4V ≤V IN -V OUT ≤10V, 10mA ≤I OUT ≤1A 0.2 5 µA Minimum Load Current (ADJ) 1.5V ≤V IN -V OUT ≤10V (ADJ only) 1.7 5 mA Quiescent Current V IN = V OUT +1.25V 5 10 mA Ripple Rejection f=120Hz, C OUT =22µF Tantalum,V IN -V OUT =3V, I OUT =1A60 75 dBTemperature Stability 0.5 %Long-Term Stability TA=125℃, 1000hrs 0.3 % RMS Output Noise(% of V OUT )TA=25℃, 10Hz ≤f ≤10KHz0.003 % Thermal Resistance, Junction to Case SOT-223 TO-252/251 TO-220 TO-263 15 104.5 4℃/WThermal Shutdown Junction Temperature150 ℃ Thermal Shutdown Hysteresis 25 ℃JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD1A LOW DROPOUT LINEAR REGULATOR Typical Characteristics CJ1117JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD1A LOW DROPOUT LINEAR REGULATOR Typical Characteristics CJ1117JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD1A LOW DROPOUT LINEAR REGULATOR Typical Characteristics CJ1117JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD 1A LOW DROPOUT LINEAR REGULATORTypical Applications元器件交易网。

SPX1117中文数据手册

表1 PC 板（mm2） 2500 2500
图 20 纹波抑制比；Vin=3.3V，Vout=1.8V（adj.），Iload=200mA
顶层 Copper（mm2） 2500 1250
背层 Copper(mm2) 2500 2500
热阻（JUNC to AMB） ℃/W 46 47
2500
950
2500
（VIN-VOUT）=5V 25℃，30mS 脉冲 fRIPPLE=120Hz，VIN-VOUT=2V， VRIPPLE=1VPP 125℃，1000Hrs Vout 百分比，10Hz≤f≤10kHz TO-220 接点->焊片 TO-220 接点->周围环境 TO-263 接点->焊片 TO-263 接点->周围环境 TO-252 接点->焊片
4
图5 SPX11173M3-3.3电流极限值，Iout从10mA到1A时的输出电压偏差图 6 Vout vs 温度，VIN=2.5V，IOUT=10mA 图 7 VIN=3.0V，IOUT=10mA 图 8 VIN=3.3V，IOUT=10mA 5
图9 VIN=4.0V，IOUT=10mA 图 10 VIN=4.85，IOUT=10mA 图 11 VIN=4.85，IOUT=10mA 图 12 VIN=5.0V，IOUT=10mA 图 13 线性调节率 Vs 温度，Vout=1.8V（可调节），VIN=3.3V 6
+ 1.5V
3
图1 SPX1117M3-3.3负载调节率；VIN=4.8V 图 2 SPX1117M3-3.3 线性调节率；IOUT=10mA 图 3 SPX1117M3-3.3 压差 vs 输出电流；VIN=4.8V，COUT=2.2uF 图 4 SP1117M3-3.3 的电流极限值；VIN=4.8V，CIN=COUT=1uF，IOUT 从 10mA 到电流极限值

IL1117-1.25资料

TECHNICAL DATA1.0A Low Dropout Positive Voltage RegulatorThe IL1117 is a series of low dropout voltage regu-lators which can provide up to 1A of output current. The IL1117 is available in eight fixed voltage, 1.2, 1.25, 1.5,1.8, 2.5, 2.85, 3.3 and 5.0V. Additionally it is also avail-able in adjustable version. On chip precision trimming adjusts the reference/ output voltage to withined(for IL1117-1.2V - 0 to +150°C)Applications●Post Regulator for switching DC/DC Converter ● High Efficiency Linear Regulator ● Battery Chargers ● PC Add on Card● Motherboard clock supplies ● LCD Monitor ● Set-top BoxAbsolute Maximum RatingsSymbol DescriptionMax Units VIN Input Voltage15V IOUT DC Output CurrentPD/(VIN-VO)mA TJ Operating Junction Temperature Range -40 to 125°C ΘJA Thermal Resistance (SOT-223)150°C/W ΘJA Thermal Resistance (TO-252)80°C/W ΘJA Thermal Resistance (TO-220)60°C/W PD Maximum Power Dissipation (SOT-223)mW PD Maximum Power Dissipation (TO-252)mW PDMaximum Power Dissipation (SOT-220)Internally LimitedmWIL1117-xxPin#2 connected with heat sinkElectrical CharacteristicsVin = 5V, Co = 10uF, Ta = 25°C, Tj = -40°C to +125°C ( for IL1117-1.2 Tj = 0 to +150°C) unless otherwise specifiedPARAMETER CONDITIONS MIN TYP MAX UNIT OUTPUT VOLTAGEIL1117-1.2IL1117-1.25 (Adjustable)IL1117-1.5IL1117-1.8IL1117-2.5IL1117-2.85IL1117-3.3IL1117-5.0Io = 10mA to 1.0A, Vin = 2.7 to 12.0VIo = 10mA to 1.0A, Vin = 2.8 to 12.0VIo = 10mA to 1.0A, Vin = 3.0 to 12.0VIo = 10mA to 1.0A, Vin = 3.3 to 12.0VIo = 10mA to 1.0A, Vin = 4.0 to 12.0VIo = 10mA to 1.0A, Vin = 4.4 to 12.0VIo = 10mA to 1.0A, Vin = 4.8 to 12.0VIo = 10mA to 1.0A, Vin = 6.5 to 15.0V1.1761.2251.4701.7642.4502.7903.2404.9001.2001.2501.5001.8002.5002.8503.3005.0001.2241.2801.5301.8362.5502.9103.3605.100VLINE REGULATIONIL1117-1.2IL1117-1.25 (Adjustable)IL1117-1.5IL1117-1.8IL1117-2.5IL1117-2.85IL1117-3.3IL1117-5.0Io =10mA, Vin = 2.7 to 12.0VIo =10mA, Vin = 2.8 to 12.0VIo =10mA, Vin = 3.0 to 12.0VIo =10mA, Vin = 3.3 to 12.0VIo =10mA, Vin = 4.0 to 12.0VIo =10mA, Vin = 4.4 to 12.0VIo =10mA, Vin = 4.8 to 12.0VIo =10mA, Vin = 6.5 to 15.0V2.00.12.02.02.02.03.04.07.00.27.07.07.07.07.010.0mV%mVmVmVmVmVmVLOAD REGULATIONIL1117-1.2IL1117-1.25 (Adjustable)IL1117-1.5IL1117-1.8IL1117-2.5IL1117-2.85IL1117-3.3IL1117-5.0Io = 10mA to 1.0A, Vin = 3.2VIo = 10mA to 1.0A, Vin = 3.3VIo = 10mA to 1.0A, Vin = 3.5VIo = 10mA to 1.0A, Vin = 3.8VIo = 10mA to 1.0A, Vin = 4.5VIo = 10mA to 1.0A, Vin = 4.85VIo = 10mA to 1.0A, Vin = 5.3VIo = 10mA to 1.0A, Vin = 7.0V3.00.23.03.03.03.04.05.010.00.410.010.010.010.012.015.0mV%mVmVmVmVmVmVDROPOUT VOLTAGE(2)All Models Io =1A 1.20 1.30VIo Tj =-40°C to +125°C) 1.20 1.55 CURRENT LIMIT Vin - Vo = 5V1000mA MINIMUM LOAD CURRENTAdjustable Models Vin= 13.75V5mA QUIESCENT CURRENT Vin - Vo = 1.5V 5.210mA Adjust Pin Current Io = 10mA, Vin - Vo = 1.4 to 10V50120uA vs Load Current,IL1117Io= 10mA to 1A,Vin Vo= 1.4 to 10V0.55uA TEMPERATURE DRIFT Tj = -40°C to +125°C0.5% RMS Output Noise Bandwidth of 10Hz to 10kHz at 25°C0.003%VoRipple Rejection Ratio 120Hz input Ripple(Cadj for ADJ) =25uFVin -Vo= 5V, Io = 1.0ATj = -40°C to +125°C6072dBNOTES: (1) IL1117-x adjustable versions require a minimum load current for ±3% regulation.(2) Dropout voltage is the input voltage minus output voltage that produces a 1% decrease inoutput voltage.Block DiagramApplication InformationFIGURE 1. Fixed-Voltage Model FIGURE 2. Adjustable-Voltage Model—Basic Connections. --Basic Connections.Vo=Vref(1+R2/R1)+Iadj*R2IL1117IL1117(Adj)Typical Perfomance CharacteristicsTypical Perfomance Characteristics (continue)Figure 3.Application InformationOutput voltage adjustmentLike most regulators, the IL1117 regulates the output by comparing the output voltage to an internally gen-erated reference voltage. On the adjustable version as shown in Fig.4, the V REF is available externally as 1.25V between V OUT and ADJ. The voltage ratio formed by R1 and R2 should be set to conduct 10mA (mi-numum output load).The output voltage is given by the following equation:On fixed versions of IL1117, the voltage divider is provided internally.Figure 4. Basic Adjustable RegulatorInput Bypass CapacitorAn input capacitor is recommended. A 10μF tantalum on the input is a suitable input bypassing for almost all applications.Adjust Terminal Bypass CapacitorThe adjust terminal can be bypassed to ground with a bypass capacitor (C ADJ) to improve ripple rejection. This bypass 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 R1 to prevent the ripple from being amplified:The R1 is the resistor between the output and the adjust pin. Its value is normally in the range of 100- 200Ω. For example, with R1 = 124Ωand f RIPPLE= 120Hz, the C ADJ should be> 11μF.Output CapacitorIL1117 requires a capacitor from V OUT to GND to provide compensation feedback to the internal gain stage. This is to ensure stability at the output terminal. Typically, a 10μF tantalum or 50μF aluminum electrolytic is sufficient.Note: It is important that the ESR for this capacitor does not exceed 0.5 Ω.The output capacitor does not have a theoretical upper limit and increasing its value will increase stability.C OUT= 100μF or more is typical for high current regulator design.Load RegulationWhen the adjustable regulator is used (Fig.5), the best load regulation is accomplished when the top of the resistor divider (R1) is connected directly to the output pin of the IL1117. When so connected, R P is not multiplied by the divider ratio. For Fixed output version, the top of R1 is internally connected to the output and ground pins can be connected to low side of the load.Figure 5. Best Load Regulation Using Adjustable Output RegulatorThermal ProtectionIL1117 has thermal protection which limits junction temperature to 150°C. However, device functionality is only guaranteed to a maximum junction temperature of +125°C. The power dissipation and junction tem-perature for IL1117 in DPAK package are given byNote: T JUNCTION must not exceed 125°CCurrent Limit ProtectionIL1117 is protected against overload conditions. Current protection is triggered at typically 1.6A.Thermal ConsiderationThe IL1117 series contain thermal limiting circuitry designed to protect itself from over-temperature condi-tions. Even for normal load conditions, maximum junction temperature ratings must not be exceeded. As mention in thermal protection section, we need to consider all sources of thermal resistance between junc-tion and ambient. It includes junction-tocase, case-to-heat-sink interface, and heat sink thermal resistance itself.Junction-to-case thermal resistance is specified from the IC junction to the bottom of the case directly below the die. Proper mounting is required to ensure the best possible thermal flow from this area of the package to the heat sink. The case of all devices in this series is electrically connected to the output. Therefore, if the case of the device must be electrically isolated, a thermally conductive spacer is recommended.。

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。

LD1117芯片规格书

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

LM1117-adj中文资料

订购信息
封装 3 引脚 SOT-223
3 引脚 SOT-220 3 引脚 SOT-252
8 引脚 LLP
TO-263
温度范围 0℃~125℃
-40℃~125℃ 0℃~125℃
0℃~125℃
-40℃~125℃ 0℃~125℃
-40℃~125℃ 0℃~125℃
型号 LM1117MPX-ADJ LM1117MPX-1.8 LM1117MPX-2.5 LM1117MPX-2.85 LM1117MPX-3.3 LM1117MPX-5.0 LM1117IMPX-ADJ LM1117IMPX-3.3 LM1117IMPX-5.0 LM1117T-ADJ LM1117T-1.8 LM1117T-2.5 LM1117T-2.85 LM1117T-3.3 LM1117T-5.0 LM1117DTX-ADJ LM1117DTX-1.8 LM1117DTX-2.5 LM1117DTX-2.85 LM1117DTX-3.3 LM1117DTX-5.0 LM1117IDTX-ADJ LM1117IDTX-3.3 LM1117IDTX-5.0 LM1117LTX-ADJ LM1117LTX-1.8 LM1117LTX-2.5 LM1117LTX-2.85 LM1117LTX-3.3 LM1117LTX-5.0 LM1117ILTX-ADJ LM1117ILTX-3.3 LM1117ILTX-5.0 LM1117SX-ADJ LM1117SX-2.85 LM1117SX-3.3 LM1117SX-5.0
LM1117-1.8 VIN = 3.2V, 0≤IOUT≤800mA
LM1117-2.5 VIN = 3.9V, 0≤IOUT≤800mA
LM1117-2.85 VIN = 4.25V, 0≤IOUT≤800mA

LD1117_V1.1 中文规格书赫尔半导体HEERMICR

■概述LD1117是一個輸出電流達到1A 的三端輸出低壓差線性穩壓器，有1.2V 、1.8V 、2.5V 、3.3V 、5.0V 及可調節輸出電壓等各種版本，其電壓降在1A 時僅為1.2V 。

以其優良的性能和極度的經濟性能，適用於各種電器產品。

■特點●1A 輸出電流時壓降僅為1.2V ●限流功能●過熱保護功能●有固定輸出電壓1.2V 、1.8V 、2.5V 、3.3V 、5.0V 及可調節輸出電壓版本●固定輸出電壓1.2V 的電壓精度為2%●固定輸出電壓 1.8V 、2.5V 、3.3V 、5.0V 及可調節輸出電壓的精度為1.5%●溫度範圍：-40℃ ~ +125℃■典型應用電路Vref=V out-Vadj=1.25V (典型值) V out=Vref*(1+RF2/RF1)+Iadj*RF2 Iadj=55uA (典型值)■封裝及腳位定義（常用封裝為SOT-223、TO-252） ■應用●膝上型電腦、掌上電腦及筆記本電腦●電池充電器●SCSI -Ⅱ主動終端●移動電話●無繩電話●電池供電系統●便攜式設備●開關電源後置穩壓器LD1117ADJLD11173.3SOT-89Vin 30V ■內部框圖■極限參數參數符號範圍單位輸入工作電壓引腳溫度（焊接5秒） Tlead260℃工作結溫範圍Tj 150℃儲存溫度Tstg -65~+150℃功耗Pd 內部限制（註1）mW ESD 能力（最小）ESD2000V註1：最大允許功耗是最大工作結溫Tj(max),結對空熱阻和環境溫度的函數。

最大允許功耗在給定的環境溫度下，超過最大允許功耗會導致芯片溫度過高，調整器因此會進入過熱保護狀態。

不同的封裝類型的結對空熱阻是不一樣的，由封裝技術決定。

■推薦工作條件參數符號範圍單位輸入電壓Vin 24V 工作結溫範圍Tj-40~+125℃■電氣特性（除非特別指明，否則黑色字體所示的參數，Tamb=25℃,正常工作結溫範圍-40~+125℃）參數符號測試條件最小值典型值最大值單位基準電壓Vref LD1117-ADJ, IOUT=10mA, VIN-VOUT=2V , TJ=25°C10mA ≤IOUT ≤1A, 1.4V ≤VIN-VOUT ≤10V 1.231 1.2251.250 1.2501.268 1.275VLD1117-1.2, IOUT=10m Α, VIN=3.2V ,TJ=25°C 10mA ≤IOUT ≤1A, 3.0V ≤VIN ≤10V 1.176 1.152 1.200 1.200 1.224 1.248 VLD1117-1.5, IOUT=10m Α, VIN=3.5V ,TJ=25°C 10mA ≤IOUT ≤1A, 3.0V ≤VIN ≤10V 1.477 1.470 1.500 1.500 1.522 1.530 VLD1117-1.8, IOUT=10mA,VIN=3.8V , TJ=25°C , 0≤IOUT ≤1A, 3.2V ≤VIN ≤10V 1.773 1.746 1.800 1.800 1.827 1.854 VLD1117-2.5, IOUT=10mA,VIN=4.5V ,TJ=25°C , 0≤IOUT ≤1A, 3.9V ≤VIN ≤10V 2.462 2.450 2.500 2.500 2.538 2.550 VLD1117-3.3, IOUT=10mA, VIN=5V ,TJ=25°C , 0≤IOUT ≤1A,4.75V ≤VIN ≤10V 3.250 3.235 3.300 3.300 3.349 3.365 V輸出電壓V outLD1117-5.0, IOUT=10mA, VIN=7V , TJ=25°C , 0≤ IOUT ≤1A, 6.5V ≤VIN ≤12V4.925 4.9005.000 5.0005.075 5.100V輸出電壓溫度穩定性TSout0.3%線性調整 Rline VINMIN ≤VIN ≤ 12V , VOUT=Fixed/Adj, Iout=10mA6 15 mV 負載調整 Rload10mA ≤IOUT ≤1A, VOUT=Fixed/Adj 6 18 mV壓差VdropIOUT=100mAIOUT=500mA IOUT=1A1.00 1.05 1.201.20 1.25 1.30V靜態電流Iq 4.25V ≤VIN ≤ 6.5V 5 10 mA紋波抑制比 PSRR fRIPPLE=120Hz, (VIN-VOUT)=3V , VRIPPLE=1VPP5060dB 可調管腳電流 Iadj 60 120uA 可調管腳電流變化0≤ IOUT ≤800mA, 1.4V ≤VIN-VOUT ≤10V0.2 5uALD1117低压差线性稳压器1A Bipolar Linear Regulator參數符號測試條件最小值典型值最大值單位溫度保護點 TSD 150℃限流保護點 Ilimit 1.4 1.6 1.8A 溫度穩定性0.5%長期穩定性TA=125°C,1000Hrs0.3%RMS輸出噪聲% of VOUT,10Hz≤f≤10kHz0.005% SOT223-3L 120熱阻係數（無散熱片）TO252-2L 100℃/W■典型電性特性曲綫■SOT223封裝外形圖■封裝外形圖TO-252聲明：●我公司保留說明書更改權利，恕不另行通知；●任何半導體產品特性條件下都有一定失效或者發生故障的可能，買方有責任在使用我司產品進行系統設計和整機製造時遵守安全標準并採取安全措施，以避免潛在失敗風險可能造成人身傷害或財產損失情況的發生；●產品提升永無止境，我司將竭誠為客戶提供更優秀的半導體產品。

AMS1117-1.5 PDF 中文资料

封装 SOT-89-3
打印名称 SAJ S12 S15 S18 S25 S28 S30 S33 S50
AMS Crop. (translate by BONA 0755-82800289)
共10页第1页
AMS1117
产品规格分类（温度范围：-40°C~ 125°C）
内部框图
AMS Crop. (translate by BONA 0755-82800289)
共10页第2页
AMS1117
极限参数
参数输入工作电压引脚温度 (焊接5秒) 工作结温范围储存温度功耗 ESD能力 (最小值)
符号 VIN TLead TJ TSTG PD ESD
封装 TO-220-3L TO-263-3L
打印名称
产品名称
AMS1117-ADJ AMS1117-ADJ
AMS1117-1.2 AMS1117-1.5 AMS1117-1.8
AMS1117-1.2 AMS1117-1.5 AMS1117-1.8
AMS1117-2.5 AMS1117-2.5
AMS1117-2.85 AMS1117-2.85
0≤IOUT≤1A, 3.9V≤VIN ≤10V
2.450 2.500 2.550
（见下页）
AMS Crop. (translate by BONA 0755-82800289)
共10页第3页
AMS1117
（接上页）
参数
输出电压
输出电压温度稳定性线性调整负载调整漏失电压静态电流纹波抑制比可调管脚电流可调管脚电流变化温度稳定性长期稳定性 RMS输出噪声
0.003
%
SOT-223-3

LM1117中文资料

3.267 3.168
3.300 3.333 V 3.300 3.432 V
ｍ
LM1117I-5.0 IOUT = 10mA,VIN-VOUT =7V, TJ = 25℃
4.950
5.000
5.050
ｒV
∆VOUT 线性调整率
0≤IOUT≤800mA, 6.5V≤VIN≤12V LM1117I-ADJ
续上表
符号
参数
条件
最小值典型值最大值单位
∆VOUT 线性调整率
LM1117-2.85 IOUT = 0m来自, 4.25V≤VIN≤10V
1
6 mV
LM1117-3.3
IOUT = 0mA, 4.75V≤VIN≤15V LM1117-5.0
1
6 mV
．
∆VOUT 负载调整率
IOUT = 0mA, 6.5V≤VIN≤15V LM1117-ADJ
N05A N06A
编带和卷轴编带和卷轴
ｍ
-40℃~125℃
LM1117IMPX-ADJ LM1117IMPX-3.3
N03B N05B
编带和卷轴编带和卷轴
ｒ
0℃~125℃
LM1117IMPX-5.0 LM1117T-ADJ
N06B LM1117T-ADJ
ａ编带和卷轴
直条
LM1117T-1.8 LM1117T-2.5
3.267 3.235
3.300 3.333 V 3.300 3.365 V
LM1117-5.0
∆VOUT 线性调整率
IOUT = 10mA,VIN-VOUT =7V, TJ = 25℃ 0≤IOUT≤800mA, 6.5V≤VIN≤12V LM1117-ADJ IOUT = 10mA, 1.5V≤VIN-VOUT≤13.75V

1117资料

概述LM1117是一个低压差电压调节器系列。

其压差在1.2V输出，负载电流为800mA时为1.2V。

它与国家半导体的工业标准器件LM317有相同的管脚排列。

LM1117有可调电压的版本，通过2个外部电阻可实现1.25～13.8V 输出电压范围。

另外还有5个固定电压输出（1.8V、2.5V、2.85V、3.3V和5V）的型号。

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。

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－LM1117：0℃~125℃－LM1117I：-40℃~125℃应用2.85V模块可用于SCSI-2有源终端开关DC/DC转换器的主调压器高效线性调整器电池充电器电池供电装置。

LM1117-5中文资料

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
IOUT=10mA, VIN=3.8V, TJ=25°C , 1.782 1.800 1.818 V
0≤IOUT≤1A, 3.2V≤VIN≤10V
1.764 1.800 1.836
AMS1117-2.5,
IOUT=10mA, VIN=4.5V,TJ=25°C , 2.475 2.500 2.525 V
推荐工作条件
参数输入电压工作结温范围
符号 VIN TJ
范围 15
-40 ~ +125
单位 V °C
电气特性(除非特别指定，否则黑色字体所示的参数，Tamb=25°C，正常工作结温范围 -40°C ~125°C。)
参数基准电压
输出电压
符号
测试条件
最小值典型值最大值单位
AMS1117-ADJ,
2.940 3.000 3.060
AMS1117-3.3, IOUT=10mA, VIN=5V,TJ=25°C , 0≤IOUT≤1A, 4.75V≤VIN≤10V
3.267 3.300 3.333 V 3.235 3.300 3.365
AMS1117-5.0,
IOUT=10mA, VIN=7V, TJ=25°C , 4.950 5.000 5.05 V
封装 SOT-89-3
打印名称 SAJ S12 S15 S18 S25 S28 S30 S33 S50

LD1117中文资料

输出电压
LD1117
符号
测试条件
Vin=5.3V,Iout=10mA, Tj=25℃（图 1） Vin=4.6V∼12V, Iout=1mA∼1A,（图 1） Vin=5.3V,Tj=25℃ （图 1） Vin=5.3V,Iout =1mA， ΔT=0℃∼125℃，图 1 VKA =VREF, ΔVin=4.8V∼10V，图 1 ΔIout =1mA∼800mA, Vin=4.8V，图 1 图1 Vin>10V，图 1 Iout=0.1A,图 1 Iout=0.5A,图 1 Iout=1A,图 1 1% 5%
1000
mA mV/℃
45 0.35 1 10 1.1 1.2 1.3
mV/V mV/m A mA mA V V V
LD1117-2.5V 电性参数 (测试线路,TJ=0℃∼125℃,Cin*=Cout* =22µF, 除非另外说明) 电性参数
输出电压
符号
测试条件
Vin=4.5V,Iout=10mA, Tj=25℃（图 1） Vin=3.8V∼12V, Iout=1mA∼1A,（图 1） Vin=4.5V,Tj=25℃, （图 1） Vin=4.5V,Iout =1mA， ΔT=0℃∼125℃，图 1 VKA =VREF, ΔVin=4V∼8V，图 1 ΔIout =1mA∼800mA, Vin=4V，图 1 图1 Vin>8V，图 1 Iout=0.1A,图 1 Iout=0.5A,图 1 Iout=1A,图 1 1% 5%
最小
1.782 1.692
典型
1.8 1.8
最大
1.818
单位
V
VO
1.908
输出电流输出电压温度影响系数线性输入调整率负载能力调整率最小维持电流* 静态电流开启压降

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：。

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