Voltage Regulator. LM317 Datasheet

LM317 Regulator. Datasheet pdf. Equivalent


Part LM317
Description Voltage Regulator
Feature LM317 Rev.F Mar.-2016 / Descriptions TO-220 。Voltage Regulator in a TO-220 Plastic Package. DATA S.
Manufacture BLUE ROCKET ELECTRONICS
Datasheet
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LM317
LM317
Rev.F Mar.-2016
描述 / Descriptions
TO-220 塑封封装电压调整器。Voltage Regulator in a TO-220 Plastic Package.
DATA SHEET
特征 / Features
三端稳压调整器,输出电流超过 1.5A,稳压输出电压在 1.237V 之间可调。
3-Terminal regulators ,output current in excess of 1.5 A, output voltage adjustable over a 1.2-37V.
用途 / Applications
电压调整器。
Voltage Regulator.
内部等效电路 / 应用电路 Equivalent Circuit or Application Circuit
引脚排列 / Pinning
123
PIN1ADJ
PIN 2OUT
PIN 3IN
印章代码 / Marking
见印章说明。See Marking Instructions
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LM317
LM317
Rev.F Mar.-2016
DATA SHEET
极限参数 / Absolute Maximum Ratings(Ta=25)
参数
Parameter
Input - Output Voltage Difference
Output Current
Operating Junction Temperature Range
Power Dissipation
Storage temperature range

符号
Symbol
Vi-o
IO
TJ
Ptot
Tstg
电性能参数 / Electrical Characteristics(Ta=25)
数值
Rating
40
Internally
Limited
0125
Internally
Limited
-55150
单位
Unit
V
A
W
参数
Parameter
Line regulation
Load Regulation
Adjustable Pin Current
Adjustable Pin Current
Change
Reference Voltage
Line Regulation
Minimum Load Current for
Regulation
Maximum Output Current
RMS Noise vs. %of VOUT
Ripple Rejection
符号
Symbol
测试条件
Test Conditions
最小值 典型值 最大值 单位
Min Typ Max Unit
Vi-Vo=3to40V TJ=25
Vo
Vi-Vo=3to40V
0.01 0.04 %/V
0.02 0.07 %/V
Vo5V
Io=10mAtoIMAX TJ=25
Vo5V
Vo
Io=10mAtoIMAX
Vo5V
Io=10mAtoIMAX TJ=25
Vo5V
Io=10mAtoIMAX
5 25 mV
20 70 mV
0.1 0.5 %
0.3 1.5 %
IADJ 50 100 μA
IADJ
Vi-Vo=2.5to40V
Io=10mAtoIMAX
0.2 5 μA
VREF
Vi-Vo=2.5to40V
Io=10mAtoIMAX PDPMAX
1.2
1.25 1.3
V
VO
VO
1%
Io(min) Vi-Vo=40V
3.5 10 mA
IO(max)
Vi-Vo15V
Vi-Vo=40V
TJ=25
PDPMAX
PDPMAX
1.5
2.2
0.4
eN B=10Hzto10KHz TJ=25
0.003
SVR
TJ=25
CADJ=0
f=120Hz
CADJ=10μF
65
66 80
A
A
%
dB
dB
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