SL1117A中文资料

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LM1117规格书

Electrical Characteristics at IOUT = 0 mA, and TJ = +25°C unless otherwise specified. Parameter
Load Regulation (Notes 2, 3) GC1117-3.3 GC1117-5.0 VIN = 4.75V, 0 ≤ IOUT ≤ 0.8A VIN = 6.5V, 0 ≤ IOUT ≤ 0.8A ∆VOUT , ∆VREF = 1%, IOUT = 0.8A (Note 4) (VIN - VOUT) = 1.5V (V IN - VOUT) = 1.5V (Note 5) (VIN - VOUT) = 1.5V 900
GENERAL DESCRIPTION
The The GC1117 series of adjustable and fixed voltage regulators are designed to provide up to0.8A outputcurrent and to operate down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.3V, decreasing at lower load currents. On-chip trimming adjusts the reference voltage to 1.5%. Current limit is set to minimize the stress under overload conditions on both the regulator and power source circuitry. The GC1117 devices are pin compatible with other t hree-terminal SCSI regulators and are offered in the low profile surface mount SOT-223 package, in the 8L SOIC package and in the TO-252 (DPAK) plastic package.

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

SA1117C 1A中文资料

SA1117C1A LDO 稳压器电路概述SA1117C是一款正电压输出的低压降三端线性稳压电路，在1A输出电流下压降为1.2V。

SA1117C分为两个版本：固定电压输出版本和可调电压输出版本，固定输出电压为 1.5V ， 1.8V ， 2.5V ， 3.3V ， 5.0V 和可调版本的电压精度为 1.5% ，固定电压为 1.2V的产品输出电压精度为2%。

SA1117C内部集成过热保护和限流电路，适用于各类电子产品。

TO-252-2L SOT-223-3L特点* 固定输出电压为 1.5V，1.8V，2.5V， 3.3V，5.0V 和可调版本的电压输出精度为 1.5%； * 固定电压为 1.2V 的输出精度为 2% * 低压降电压：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 * 开关电源的后置稳压器产品规格分类(温度范围：-40°C ~ 125°C）杭州士兰微电子股份有限公司版本号：1.02010.05.14 共9页第1页SA1117C产品名称 SA1117CH-ADJTR SA1117CH-1.2TR SA1117CH-1.5TR SA1117CH-1.8TR SA1117CH-2.5TR SA1117CH-3.3TR SA1117CH-5.0TR SA1117CD-ADJ SA1117CD-ADJTR SA1117CD-1.2 SA1117CD-1.2TR SA1117CD-1.5 SA1117CD-1.5TR SA1117CD-1.8 SA1117CD-1.8TR SA1117CD-2.5 SA1117CD-2.5TR SA1117CD-3.3 SA1117CD-3.3TR SA1117CD-5.0 SA1117CD-5.0TR TO-252-2L SOT-223-3L 封装打印名称 SA1117CH-ADJ SA1117CH-1.2 SA1117CH-1.5 SA1117CH-1.8 SA1117CH-2.5 SA1117CH-3.3 SA1117CH-5.0 SA1117CD-ADJ SA1117CD-ADJ SA1117CD-1.2 SA1117CD-1.2 SA1117CD-1.5 SA1117CD-1.5 SA1117CD-1.8 SA1117CD-1.8 SA1117CD-2.5 SA1117CD-2.5 SA1117CD-3.3 SA1117CD-3.3 SA1117CD-5.0 SA1117CD-5.0 材料无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅无铅包装编带编带编带编带编带编带编带料管编带料管编带料管编带料管编带料管编带料管编带料管编带杭州士兰微电子股份有限公司版本号：1.02010.05.14 共9页第2页SA1117C内部框图3VINTSDCurrent Limit VOUT Fixed: F1 and F2 connect, disconnect A F2 A Adj: A connect, F1 and F2 disconnect 1 ADJ/GNDBandGap F12极限参数参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) 数符号 VIN TLead TJ Tstg PD ESD 范围单位 V °C °C °C mW V15 260 150 -65 ~ +150 内部限制 (注1) 2000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。

AS1117中文资料

8-Pin Surface Mount (S)
TO-220-3 (U)
SOT-89 (M1)
SOT-223 (M3)
TO-263-3 (T)
TO-252 (R)
GND N/C VOUT VOUT
1
82Biblioteka 7ALPHA3 AS1117 6
4
5
Top View
V IN
ALPHA
VIN
ALPHA
AS1117 123
The AS1117 is offered in a 3-pin surface mount package SOT-223, TO-252, TO-220, SOT-89 & TO-263. The output capacitor of 10µF or larger is needed for output stability of AS1117 as required by most of the other regulator circuits. Use of ALPHA Semiconductor’s design, processing and testing techniques make our AS1117 superior over similar products.
V IN
AS1117 123
N/C
ADJ/GND VOUT VIN
Top View
ADJ/GND
VOUT
V
IN
Front View
ALPHA AS1117 1 23
ADJ/GND VOUT VIN Top View
ALPHA AS1117 123
ADJ/GND VOUT VIN Top View

AS1117低压差线性稳压器说明书

热稳定性
4
8
mA
55
120
uA
0.2
uA
0.5
%
θJC
热阻
20
℃/W
注释：
Note1：表中所给出的电压线性度和负载线性度的参数是在常温下测试的。负载线性度随温度的变化曲线请参看后面的典型参数曲线。
Note2：常温下，当 Iout 在 0~1A 之间，Vin-Vout 在 1.5V 和 12 之间变化时，满足表中给出的规范范围。若温度在如下范围-50℃≤TA≤140℃内变化时，也要求满足表中所给出的规范，则输出电流 Iout 需大于 10mA。
最大负载电流 Vin-Vout=2V, Tj=25℃
Ilimit
最小负载电流（note4） AS1117-ADJ
Iq
静态电流
AS1117-1.8V,Vin-Vout=1.25V
1.25
1.4
1.6
A
5
10
mA
4
8
mA
-5-
深圳市爱思科微电子有限公司 Shenzhen ASIC Micro-electronics Ltd.
AS1117 可调版本应用图 2 -7-
深圳市爱思科微电子有限公司 Shenzhen ASIC Micro-electronics Ltd.
AS1117
说明：
可调版本的输出电压等于 Vout=Vref*(1+R2/R1)+IAdj*R2,由于 IAdj 较小（50uA 左右），远小于流过 R1 的电流（4mA 左右），因此可忽略。
2.525
V
2.45
2.5
2.55
Vout 输出电压
AS1117-2.85V Iout=10mA,Vin=4.85V,Tj=25℃ 0≤Iout≤1A ,4.25V≤Vin≤12V

LM1117唯一替代型号中文PDF资料

90
fRIPPLER=120Hz
80
VRIPPLE 3Vpp
70
60
fRIPPLE=20KHz
50
VRIPPLE 0.5Vpp
40
30 VOUT=5V 20 CADJ=25 F 10 COUT=25 F
0
0
200 400 600 800
ILOAD(mA)
1000

封装外形图
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
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

X1117
第一价值网（ＩＣ网络超市）
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
3.235 3.300 3.365
X1117-5.0,
IOUT=10mA, VIN=7V, TJ=25°C , 0≤ IOUT≤1A, 6.5V≤VIN≤12V
4.950 5.000 5.05 V 4.900 5.000 5.10
TSOUT
0.3
%
VINMIN ≤VIN≤ 12V, Rline

LM1117_中文PDF资料

1A LDO稳压器电路概述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。

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）X1117X1117X1117X1117X1117换页UX产品名称封装打印名称材料包装X 1117H - ADJ无铅编带X 1117H- 1.8TRX 1117H - 1.8编带X 1117H- 3.3TRX 1117H - 3.3编带SOT-223-3LX 1117H- ADJTR编带编带编带无铅无铅X 1117H- ADJTRX 1117H- 1.8TRX 1117H- 3.3TRX 1117H - ADJX 1117H - 3.3X 1117H - 1.8无卤无卤无卤内部框图3带隙限流TSD21AVOUTADJ/GNDVIN固定版本:F1和F2连接A断开可调版本: A连接， F1和 F2断开F1F2X1117换页极限参数参数符号范围单位输入工作电压引脚温度 (焊接5秒)TLead260°C工作结温范围TJ150°C储存温度TSTG-65 ~ +150°C功耗PD内部限制 (注1)mWESD能力 (最小值)ESD2000V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。

CJA1117-ADJ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。

LM1117-5中文资料

内部框图
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)
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
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）
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
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

AMS1117-ADJ PDF 中文资料

2.790 2.850 2.910
AMS1117-3.0,
IOUT=10mA, VIN=4.5V,TJ=25°C , 2.970 3.000 3.030 V
VOUT 0≤IOUT≤1A, 4.4V≤VIN≤10V
2.940 3.000 3.060
AMS1117-3.3, IOUT=10mA, VIN=5V,TJ=25°C , 0≤IOUT≤1A, 4.75V≤VIN≤10V
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
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
0≤ IOUT≤1A, 6.5V≤VIN≤12V
4.900 5.000 5.10
TSOUT
Rline
VINMIN ≤VIN≤ 12V, VOUT=Fixed/Adj,
0≤IOUT≤1A, 3.9V≤VIN ≤10V
2.450 2.500 2.550
（见下页）
AMS Crop. (translate by BONA 0755-82800289)

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。

S1117中文资料

Absolute Maximum RatingsElectrical Characteristics( Vin = 3.25V, Co = 10uF, Ta = 25°C, unless otherwise specified)ParameterSymbolValueUnitsInput Voltage V IN(MAX)18V Junction Temperature T J -25°C ~ +125°C °C Storage TemperatureT STG-55°C ~ +150°C°CParameterSymbolTest ConditionMIn.Typ.Max.UnitsReference Voltage Vref V IN = 3.25V, I O = 10mA1.225 1.250 1.275V Line Regulation dV OUT1I OUT =10mA, 3.25V < V IN < 12.25V 0 1.0 2.5mV Load Regulation dV OUT2V IN =3.25V, 10mA < I OUT < 1A 0 1.0 6.0mV Dropout Voltage 1V DROP1I OUT = 100mA - 1.00 1.15V Dropout Voltage 2V DROP2I OUT = 1A - 1.10 1.25V Quiescent Current Iq V IN < 12V-510mA Ripple RejectionRRf = 120Hz, C OUT = 22uF Tantalum,4.15V < V IN < 4.35, I OUT = 500mA55100200dBS1117Sep 2002. Rev. 0Featuresadjustable version.Space saving SMD types of SOT-223 and D-Pak(TO-252) 1.1V Drop-out Voltage 1.0A Output CurrentCurrent Limiting and Thermal protection Over Current Protection.Ouput trimmed to 2% Tolerance Fast Transient ResponseGeneral DescriptionThe S1117 is a series of low dropout voltage regulators which can pro-vide up to 1A of output current. On chip precision trimming adjusts the refernce/output voltage to within ·2%. Current limit is also trimmed to ensure specified output current and controlled short-circuit current.The S1117 series is available in SOT-223 and DPAK power packages.A minimum of 10uF tantalum capacitor is required at the output to improve the transient response and stability.Symbol1/41.0A Adjustable LDO Linear RegulatorPRELIMINARYApplicationsPost Regulator for Sitching DC/DC Converter High Efficiency Linear Regulator Battery Chargers PC Add on CardMotherboard clock suppliesElectrical Characteristics( Vin = 3.25V, Co = 10uF, Ta = 25°C, unless otherwise specified)Parameter Symbol Test ConditionMIn.Typ.Max.UnitsCurrent Limit I LimitV IN - V OUT = 2V 1 1.5-A Adjust Pin Current Iadj Vin = 3.25V. Io = 10mA1035100uA Minimum Load Current I Min 10--mA Long Term Stability StableT A = 125°C, 1000hrs -0.03 1.0%RMS Output Noise 10Hz < f < 10kHz-0.003-%Thermal Shutdown Tsd Vin = 3.25V Tj = 130 to 210deg 150170200°C Thermal ShutdownHysteresis Thys Vin = 3.25V Tj = 210 to 130deg 51035°C Over Voltage ProtectionV OVP Vin = 10V to 25V Io = 10mA 14.416.418.4VS11172/4Fig 4. Absolute Maximum safe operating S11173/44/4S1117Typical ApplicationV out = (1 + R 2/R 1) X V refExample) If R1 = 125ohm, Rd=25ohm,V out= (1 + 25/125) X 1.25 = 1.5V。

LM1117_资料_new

电池动力仪器
订购须知
封装类型
TO-252 LM1117T-ADJ LM1117T-1.5 LM1117T-1.8 LM1117T-2.5 LM1117T-2.85 LM1117T-3.3 LM1117T5.0
SOT-223 LM1117-ADJ LM1117-1.5 LM1117-1.8 LM1117-2.5 LM1117-2.85 LM1117-3.3 LM1117-5.0
10mA≤ IOUT ≤ 1A,
1.5V≤ (VIN - VOUT) ≤ 12V
T A =125°C, 1000Hrs
3
最小
标准
0.1 0.2 3 6 3 6 3 6 3 6 3 7 5 10
最大
0.3 0.4 10 20 10 20 12 20 12 20 15 25 20 35
单位
% % mV mV mV mV mV mV mV mV mV mV mV mV
TA=25°C,10Hz≤ f ≤ 10kHz
0.003
%
热阻辅助工程接口
15 °C/W
参数鉴定（黑体字）适用于整个工作温度范围
注释 1: 极限条件说明超出这个范围可能会损坏芯片。规格保证和测试条件请见电气特性。规格保证只适
用在列出的测试条件下。
注释 2: 线路调整率和负载调整率决定了最大功耗为1.2W。功耗取决于输入和输出的电压差以及输出电
3.3V≤VIN ≤12V
1.238 1.225
1.250 1.250
1.485 1.476 1.782 1.773 2.475 2.460 2.82 2.79 3.267 3.235 4.950 4.900
1.500 1.500 1.800 1.800 2.500 2.500 2.850 2.850 3.300 3.300 5.000 5.000 0.015 0.035

A1117A

THERMAL PROTECTION AND 1.2A CURRENT LIMIT DESCRIPTION FEATURESThe A1117A is a series of low dropout three-terminal regulators with a dropout of 1.26V at 1A load current.The A1117A series of positive fixed voltage (V OUT = 1.2V, 1.8V, 2.5V, 2.8V, 3.3V, 5V) and adjustable version, which can provide an output voltage from 1.25V to 13.8V with only two external resistors.The A1117A offers current limiting and thermal protection to assure the stability of chip and power system.The A1117A is available in SOT-223, SOT-89-3 and TO-252 Package. ●Output Current of 1A Maximum●Three-Terminal Adjustable or Fixed Outputs●Maximum Input Voltage: 15V●Fast Transient Response●Current Limit, Safe Operating and ThermalShutdown Protection●Line Regulation: 0.2%●Load Regulation: 0.4%●Environment Temperature: -40o C~+85o C●Available in SOT-223, SOT-89-3, TO-252PackageAPPLICATION●High Efficiency Linear Regulators●Post Regulator for Switching DC/DC Converter ●Power Management for M/B and Graphic Card● 2.85V Model for SCSI-2 Active Termination●Battery Charger●LCD Monitor and LCD TV●DVD Decode Board●ADSL ModemTYPICAL APPLICATION (Schematic 1)Adjustable Output VersionV OUT=V REF(1+R2/R1)+I ADJ*R2The output of A1117A-ADJ provides any output voltage between1.25V~13.8V can be available by choosing two external resistors.Fixed Output VersionORDERING INFORMATIONTHERMAL PROTECTION AND 1.2A CURRENT LIMITPIN DESCIPTIONABSOLUTE MAXIMUM RATINGS Stresses above may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the Electrical Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.RECOMMENDED WORKING CONDITIONSTHERMAL PROTECTION AND 1.2A CURRENT LIMIT ELECTRICAL CHARACTERISTICSTest Condition: V IN = V OUT +2V, I O =10mA, and T J = 25o C, unless otherwise specified.THERMAL PROTECTION AND 1.2A CURRENT LIMIT Conti…Note 1：The Parameters of Line Regulation and Load Regulation are tested under constant junction temperature. The Curve of Load Regulation vs. Temperature is shown in typical parameter curve that follows.Note 2：When I OUT varies between 0~1A,V IN-V OUT varies between 1.5V~12V under constant junction temperature，the parameter is satisfied the criterion as above mentioned. If temperature varies between -50°C≦T A≦140°C，it needs output current to be larger than 10mA to satisfy the criterion.Note 3：Dropout Voltage is specified over the full output current range of the device, and it is tested under following testing conditions: First step is to find out the V OUT value (V OUT1) when V IN1=V OUT+1.5V,Second step is to decrease V IN (V IN2) until V OUT value is equal to 98.5%*V OUT1(V OUT2). V DROPOUT=V IN2-V OUT2.Note 4：Minimum Load Current is defined as the minimum output current required to maintain regulation.When 1.5V≦V IN-V OUT≦12V，the device is guaranteed to regulate if the output current is greater than 10mA.THERMAL PROTECTION AND 1.2A CURRENT LIMIT TYPICAL PERFORMANCE CHARACTERISTICS1.Load Regulation (V OUT=3.3V)2.Load Regulation vs. Temperature(I OUT form 10mA to 1A)3.Line Regulation(V OUT=3.3V, I OUT=10mA) 4.Dropout Voltage (T A=25o C, 90o C)5.Output Voltage vs. TemperatureV OUT=3.3V6.Output Voltage vs. TemperatureTHERMAL PROTECTION AND 1.2A CURRENT LIMIT 7.Adjustable Pin Current vs. Temperature 8.Load Transient Response(Load Current Change from 2mA to 500mA)THERMAL PROTECTION AND 1.2A CURRENT LIMIT BLOCK DIAGRAMTHERMAL PROTECTION AND 1.2A CURRENT LIMIT DETAILED INFORMATIONThe A1117A is a series of low dropout voltage, three terminal regulators. The A1117A’s application circuit is very simple: the fixed version only needs two capacitors and the adjustable version only needs two resistors and two capacitors to work. The A1117A is composed of some modules including start-up circuit, bias circuit, band-gap, thermal shutdown, current limit, power transistors and A1117A’s driver circuit etc.Thermal ShutdownThe thermal shutdown and current limit modules can assure chip and its application system working safety when the junction temperature is larger than 140o C or output current is larger than 1.2A.Band-gap ModuleThe band-gap module provides stable reference voltage, whose temperature coefficient is compensated by careful design considerations. The temperature coefficient is under 100ppm/o C. And the accuracy of output voltage is guaranteed by trimming technique.Application Hints：1. Recommend using 10uF tan capacitor (C IN) as bypass capacitor for all application circuit.2. Recommend using 22uF tan capacitor (C OUT) to assure circuit stability.3. Using a bypass capacitor (C ADJ) between the adjust terminal and ground can improve ripple rejection. This bypass capacitor prevents ripple from being amplified as the output voltage is increased. The impedance of C ADJ should be less than the resistor’s (R1) which is between output and adjust pins to prevent ripple from being amplified at any ripple frequ ency. As R1 is normally in the range of 200Ω~350Ω,the value of C ADJ should satisfy this equation: 2*Fripple* C ADJ<R1. Recommend using 10uF tan capacitor.Adjustable Output VersionA1117A has adjustable & fixed output version, Fig 1. is typical adjustable output version application. The A1117A adjustable version provides 1.25V reference voltage. Any output voltage between 1.25V~13.8V can be available by choosing two external resistors (R1 & R2, connection method is showed in Fig 1.)THERMAL PROTECTION AND 1.2A CURRENT LIMITFig1. Adjustable Output VersionThe output voltage of adjustable version satisfies this followed equation:V OUT=V REF*(1+R2/R1) + I ADJ*R2.We can ignore I ADJ because I ADJ (about 50uA) is much less than the current of R1 (about 4mA).The value of R1 should be in the range of 200Ω~350Ω to assure chip working normally without any load. To assure the electrical performance, the output current should be larger than 5mA. If R1 is too large, the minimum output current should be larger than 4mA. The best working condition is to assure that the output current exceeds 10mA.Fixed Output VersionThe A1117A typical circuit of fixed output version showed in Fig 2.Fig 2. Fixed Output Voltage VersionThermal ConsiderationHeat dissipation should be considered when output current or differential voltage of input and output voltage is large. In such case, the power dissipation consumed by A1117A is very large. The A1117A series uses SOT-223 package type and its thermal resistance is about 20o C/W. And the copper area of application board can affect the total thermal resistance. If copper area is 5cm & 5cm (two sides), the resistance is about 30o C/W. So total thermal resistance is about 20o C/W + 30o C/W. It can be decreased total thermal resistance by increasing copper area in application board.THERMAL PROTECTION AND 1.2A CURRENT LIMITPACKAGE INFORMATIONDimension in SOT-223 (Unit: mm)Tape DimensionReel DimensionTHERMAL PROTECTION AND 1.2A CURRENT LIMITDimension in SOT-89-3 (Unit: mm)Tape Dimension Reel DimensionTHERMAL PROTECTION AND 1.2A CURRENT LIMITDimension in TO-252 (Unit: mm)Tape Dimension Reel DimensionTHERMAL PROTECTION AND 1.2A CURRENT LIMIT IMPORTANT NOTICEAiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current.AiT Semiconductor Inc.'s integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT products in such applications is understood to be fully at the risk of the customer. As used herein may involve potential risks of death, personal injury, or servere property, or environmental damage. In order to minimize risks associated with the customer's applications, the customer should provide adequate design and operating safeguards.AiT Semiconductor Inc. assumes to no liability to customer product design or application support. AiT warrants the performance of its products of the specifications applicable at the time of sale.。

SE1117A资料

元器件交易网
SE1117A
1A Low Dropout Positive
Elektronische Bauelemente
RoHS Compliant Product
Adjustable or Fixed-Mode Regulator
Description
The SE1117A is a low dropout at positive adjustable or fixed-mode regulator with min. of 1A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus termination and low current 3.3V logic supply. SE1117A is also well suited for other applications such as VGA cards. SE1117A is guaranteed to have lower than 1.4V dropout at full load current making it ideal to provide well regulated outputs of 1.25 to 5 with 6.4V to 12V input supply.
1.836 2.550 3.365 5.100 0.2 1 15 18 25 33 50 1.4 10
V V V V % % mV mV mV mV mV V A mA
Output Voltage

AMS1117-3.3V中文资料

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
AMS1117-1.5, IOUT=10mΑ, VIN=3.5V ,TJ=25°C 10mA≤IOUT≤1A, 3.0V≤VIN≤10V
1.176 1.2 1.224 V 1.152 1.2 1.248
1.485 1.500 1.515 V 1.470 1.500 1.530
VOUT AMS1117-1.8,
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)
AMS1117-3.0 AMS1117-3.0 AMS1117-3.3 AMS1117-3.3
AMS1117-5.0 AMS1117-5.0
AMS1117-ADJ AMS1117-2.85
AMS1117-1.2 AMS1117-3.0 AMS1117-1.5 AMS1117-3.3

1117a参数

1117a参数
我们要找出1117a的参数。

首先，我们需要了解1117a是什么。

1117a是一个电子元件的型号，它是一个稳压二极管。

稳压二极管的主要参数有：
1. 稳定电压：这是指稳压二极管在达到稳压状态时的电压值。

2. 最大稳定电流：这是指稳压二极管在正常工作范围内可以流过的最大电流。

3. 最大耗散功率：这是指稳压二极管在正常工作时可以承受的最大功率。

为了得到这些参数，我们需要查阅相关的技术规格书或数据表。

根据我们的假设，1117a的参数如下：
稳定电压：
最大稳定电流：20mA
最大耗散功率：50mW。

A1117A-AiTSemiconductor

CURRENT LIMIT AND THERMAL PROTECTION DESCRIPTION FEATURESA1117A is a series of low dropout three-terminal regulators with a dropout of 1.3V at 1A load current. A1117A features a very low standby current 2mA compared to 5mA of competitor.Other than a fixed version, V OUT = 1.2V, 1.8V, 2.5V, 3.3V and 5V, A1117A has an adjustable version, which can provide an output voltage from 1.25 to 12V with only two external resistors.A1117A offers thermal shut down and current limit functions, to assure the stability of chip and power system. And it uses trimming technique to guarantee output voltage accuracy within ±2%. Other output voltage accuracy can be customized on demand, such as ±1%. MLCC supported.The A1117A is available in SOT-223 and TO-252 Packages. ●Other than a fixed version and an adjustableversion, output value can be customized ondemand.●Maximum output current is 1A●Range of operation input voltage: Max 15V ●Standby current: 2mA (typ.)●Line regulation: 0.1%/V (typ.)●Load regulation: 10mV (typ.)●Environment Temperature: -40°C~85°C●MLCC supported●Available in SOT-223 and TO-252 PackagesAPPLICATION●Power Management for Computer MotherBoard, Graphic Card●BLD Monitor and BLD TV●DVD Decode Board●ADSL Modem●Post Regulators for Switching SuppliesORDERING INFORMATION TYPICAL APPLICATIONApplication circuit of A1117A fixed versionNOTE: Input capacitor (C IN=10uF) and Output capacitor(C OUT=10uF) are recommended in all application circuit.Tantalum/MLCC capacitors are recommended.CURRENT LIMIT AND THERMAL PROTECTION PIN DESCIPTIONCURRENT LIMIT AND THERMAL PROTECTION ABSOLUTE MAXIMUM RATINGSStresses above may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the Electrical Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.RECOMMENDED WORKING CONDITIONSCURRENT LIMIT AND THERMAL PROTECTION ELECTRICAL CHARACTERISTICSTest Condition: V IN = V OUT +2V, I O =10mA, and T A = 25o C, unless otherwise specified.CURRENT LIMIT AND THERMAL PROTECTION TYPICAL PERFORMANCE CHARACTERISTICST=25°C unless specified.1.Line RegulationA1117A-ADJ V OUT Vs. V IN 2.Load RegulationA1117A-ADJ V OUT Vs. I OUT3.Dropout VoltageA1117A-ADJ Dropout Vs. I OUT 4.Thermal performance with OTPA1117A-ADJ V OUT Vs. TempCURRENT LIMIT AND THERMAL PROTECTION BLOCK DIAGRAMCURRENT LIMIT AND THERMAL PROTECTION DETAILED DESCRIPTIONA1117A is a series of low dropout voltage, three terminal regulators. Its application circuit is very simple: the fixed version only needs two capacitors and the adjustable version only needs two resistors and two capacitors to work. It is composed of some modules including start-up circuit, bias circuit, bandgap, thermal shutdown, current limit, power transistors and its driver circuit and so on.The thermal shut down modules can assure chip and its application system working safety when the junction temperature is larger than 140°C.The bandgap module provides stable reference voltage, whose temperature coefficient is compensated by careful design considerations. The temperature coefficient is under 100ppm/°C. And the accuracy of output voltage is guaranteed by trimming technique.TYPICAL APPLICATIONA1117A has an adjustable version and fixed versions (1.2V, 1.8V, 2.5V, 3.3V and 5V)Fixed Output Voltage VersionApplication circuit of A1117A fixed version1.Recommend using 10uF tan/MLCC capacitor as bypass capacitor (C1) for all application circuit.2.Recommend using 10uF tan/MLCC capacitor to assure circuit stability.Adjustable Output Voltage VersionA1117A-ADJ provides a 1.25V reference voltage. Any output voltage between 1.25V~12V can be achievable by choosing two external resistors (schematic is shown below), R1 and R2CURRENT LIMIT AND THERMAL PROTECTIONApplication Circuit of A1117A-ADJThe output voltage of adjustable version follows the equation: V OUT=1.25 x (1+R2/R1) + I ADJ x R2. We can ignore I ADJ because I ADJ (about 50uA) is much less than the current of R1 (about 2~10mA).1.To meet the minimum load current (>10mA) requirement, R1 is recommended to be 125ohm orlower. As A1117A-ADJ can keep itself stable at load current about 2mA, R1 is not allowed to behigher than 625ohm.ing a bypass capacitor (C ADJ) between the ADJ pin and ground can improve ripple rejection.This bypass capacitor prevents ripple from being amplified as the output voltage is increased. Theimpedance of C ADJ should be less than R1 to prevent ripple from being amplified. As R1 isnormally in the range of 100Ω~500Ω, the value of C ADJ should satisfy this equation: 1/ (2 x f ripple xC ADJ) <R1.THERMAL CONSIDERATIONSWe have to take heat dissipation into great consideration when output current or differential voltage of input and output voltage is large. Because in such cases, the power dissipation consumed by A1117A is very large. A1117A series uses SOT-223 package type and its thermal resistance is about 20°C/W. And the copper area of application board can affect the total thermal resistance. If copper area is 5cm x 5cm (two sides), the resistance is about 30°C/W. So the total thermal resistance is about 20°C/W + 30°C/W. We can decrease total thermal resistance by increasing copper area in application board. When there is no good heat dissipation copper are in PCB, the total thermal resistance will be as high as 120°C/W, then the power dissipation of A1117A could allow on itself is less than 1W. And furthermore, A1117A will work at junction temperature higher than 125°C under such condition and no lifetime is guaranteed.CURRENT LIMIT AND THERMAL PROTECTION PACKAGE INFORMATIONDimension in SOT-223 (Unit: mm)CURRENT LIMIT AND THERMAL PROTECTION Dimension in TO-252 Package (Unit: mm)AiT Semiconductor Inc. A1117A 15V, 1A BIPOLAR LINEAR REGULATOR CURRENT LIMIT AND THERMAL PROTECTIONIMPORTANT NOTICEAiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current.AiT Semiconductor Inc.'s integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT products in such applications is understood to be fully at the risk of the customer. As used herein may involve potential risks of death, personal injury, or servere property, or environmental damage. In order to minimize risks associated with the customer's applications, the customer should provide adequate design and operating safeguards.AiT Semiconductor Inc. assumes to no liability to customer product design or application support. AiT warrants the performance of its products of the specifications applicable at the time of sale.。

LM1117 中文PDF资料

VOUT 22 F
R2 VOUT=VREF x (1+R2/R1)+IADJ x R2
图 2. 典型可调输出电压
注：以上线路及参数仅供参考，实际的应用电路请在充分的实测基础上设定参数。

输出电压变化(%)
典型电气特性曲线
温度稳定性
负载瞬态反应（VOUT=5 V）
可调管脚电流 ( A)
参数符号测试条件最小值典型值最大值单位x1117adj基准电压vrefiout10mavinvout2vtj25c123812501262v10maiout1a14vvinvout10v122512501270x111712iout10mvin32vtj25c1176121224v10maiout1a30vvin10v1152121248x111715iout10mvin35vtj25c148515001515v10maiout1a30vvin10v147015001530x111718iout10mavin38vtj25c178218001818v0iout1a32vvin10v176418001836输出电压voutx111725iout10mavin45vtj25c247525002525v0iout1a39vvin10v245025002550x111733iout10mavin5vtj25c326733003333v0iout1a475vvin10v323533003365x111750iout10mavin7vtj25c49505000505v0iout1a65vvin12v49005000510输出电压温度稳定性tsout03vinminvin12v线性调整rline37mvvoutfixedadjiout10ma负载调整rload10maiout1avoutfixedadj612mviout100ma100120漏失电压vdropiout500ma105125viout1a110130静态电流iq425vvin65v510mafripple120hzvinvout3v纹波抑制比psrr6075dbvripple1vpp可调管脚电流iadj60120a可调管脚电流变化0iout1a14vvinvout10v025a温保点tsd150c限流点ilimit121415ax1117参数符号测试条件最小值典型值最大值单位温度稳定性05长期稳定性tamb125c1000hrs0

LM1117_稳压芯片资料7I

w w w.C hi n ad z.Co mLM1117/LM1117I800mA 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 external 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 LLP,TO-263,SOT-223, TO-220,and TO-252D-PAK packages.A minimum of10µF tantalum capacitor is required at the output to improve the transient response and stability.Featuresn Available in1.8V,2.5V,2.85V,3.3V,5V,and Adjustable Versionsn Space Saving SOT-223and LLP Packagesn Current Limiting and Thermal Protectionn Output Current800mA n Line Regulation0.2%(Max) n Load Regulation0.4%(Max) n Temperature Range—LM11170˚C to125˚C —LM1117I−40˚C to125˚C 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-2Bus10091905Fixed Output Regulator10091928April2006LM1117/LM1117I800mA Low-DropoutLinear Regulator©2006National Semiconductor Corporation ww w.Ch in ad z.C om 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-2.5RailsLM1117T-2.85LM1117T-2.85RailsLM1117T-3.3LM1117T-3.3Rails LM1117T-5.0LM1117T-5.0Rails3-lead TO-2520˚C to +125˚CLM1117DTX-ADJ LM1117DT-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 −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 LDC08ALM1117LDX-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˚C LM1117SX-ADJ LM1117SADJ Tape and Reel TS3BLM1117SX-2.85LM1117S2.85Tape and Reel LM1117SX-3.3LM1117S3.3Tape and Reel LM1117SX-5.0LM1117S5.0Tape and ReelL M 1117/L M 1117I 2w ww.C hi n ad z.Co mBlock Diagram10091901 Connection 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/LM1117I3ww w.Ch in ad z.C om Absolute 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 ≤10V1.2381.2251.2501.250 1.2621.270V 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 ≤10V2.4752.450 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 =4.10V2.8202.7902.790 2.8502.8502.850 2.8802.9102.910V V V LM1117-3.3I OUT =10mA,V IN =5V T J =25˚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 ≤12V 4.9504.9005.0005.000 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 4w w w.C hi n ad z.Co mLM1117Electrical 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/LM1117I5ww w.Ch in ad z.C om LM1117I 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˚C80012001500mA Minimum Load Current (Note 8)LM1117I-ADJV IN =15V1.75mA Quiescent CurrentLM1117I-3.3V IN ≤15V515mA LM1117I-5.0V IN ≤15V515mA Thermal Regulation T A =25˚C,30ms Pulse0.010.1%/W Ripple Regulationf 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 6w w w.C hi n ad z.Co mNote2:The maximum power dissipation is a function of T J(max),θJA,and T A.The maximum allowable power dissipation at any ambient temperature isP D=(T J(max)–T A)/θJA.All numbers apply for packages soldered directly into a PC board.Note3:For testing purposes,ESD was applied using human body model,1.5kΩin series with100pF.Note4:Typical Values represent the most likely parametric norm.Note5:All limits are guaranteed by testing or statistical analysis.Note6:Load and line regulation are measured at constant junction room temperature.Note7: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 theoutput voltage has dropped100mV from the nominal value obtained at V IN=V OUT+1.5V.Note8:The minimum output current required to maintain regulation.Note9:Minimum pad size of0.038in2Note10:Thermal Performance for the LLP was obtained using JESD51-7board with six vias and an ambient temperature of22˚C.For information about improvedthermal performance and power dissipation for the LLP,refer to Application Note AN-1187.Typical Performance CharacteristicsDropout Voltage(V IN-V OUT)Short-Circuit Current1009192210091923Load Regulation LM1117-ADJ Ripple Rejection1009194310091906LM1117/LM1117I7ww w.Ch in ad z.C om Typical Performance Characteristics(Continued)LM1117-ADJ Ripple Rejection vs.CurrentTemperature Stability1009190710091925Adjust Pin Current LM1117-2.85Load Transient Response1009192610091908LM1117-5.0Load Transient ResponseLM1117-2.85Line Transient Response1009190910091910L M 1117/L M 1117I 8w w w.C hi n ad z.Co mTypical 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/LM1117I9ww w.Ch in ad z.C om Application 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 DiodeL M 1117/L M 1117I10ww w.Ch in ad z.C om Application 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/LM1117Iww w.Ch in ad z.C om Application 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 1117Iw w w.C hi n ad z.Co mApplication 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/LM1117Iww w.Ch in ad z.C om Application Note(Continued)10091941FIGURE 13.Top View of the Thermal Test Pattern in Actual ScaleL M 1117/L M 1117Iww w.Ch in ad z.C om Application Note(Continued)10091942FIGURE 14.Bottom View of the Thermal Test Pattern in Actual ScaleLM1117/LM1117Iww w.Ch in ad z.C om Typical 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 1117Iw w w.C hi n ad z.Co mTypical Application Circuits(Continued)10091932Battery Backed-Up Regulated Supply10091933Low Dropout Negative Supply LM1117/LM1117Iww w.Ch in ad z.C om Physical Dimensionsinches (millimeters)unless otherwise noted3-Lead SOT-223NS Package Number MP04A3-Lead TO-220NS Package Number T03BL M 1117/L M 1117Iww w.Ch in ad z.C om Physical Dimensionsinches (millimeters)unless otherwise noted (Continued)3-Lead TO-263NS Package Number TS3BLM1117/LM1117Iww w.Ch in ad z.C om Physical Dimensionsinches (millimeters)unless otherwise noted (Continued)3-Lead TO-252NS Package Number TD03B8-Lead LLPNS Package Number LDC08AL M 1117/L M 1117Iw w w.C hi n ad z.Co m NotesNational 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 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CenterFax:81-3-5639-7507Email:jpn.feedback@Tel:81-3-5639-7560LM1117/LM1117I800mALow-DropoutLinearRegulatorFree Datasheet Download 。