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LM317L_05 PDF预览

LM317L_05

更新时间: 2024-11-18 04:59:47
品牌 Logo 应用领域
安森美 - ONSEMI 稳压器
页数 文件大小 规格书
12页 132K
描述
100 mA Adjustable Output, Positive Voltage Regulator

LM317L_05 数据手册

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LM317L  
100 mA Adjustable Output,  
Positive Voltage Regulator  
The LM317L is an adjustable 3−terminal positive voltage regulator  
capable of supplying in excess of 100 mA over an output voltage range  
of 1.2 V to 37 V. This voltage regulator is exceptionally easy to use  
and requires only two external resistors to set the output voltage.  
Further, it employs internal current limiting, thermal shutdown and  
safe area compensation, making them essentially blow−out proof.  
The LM317L serves a wide variety of applications including local,  
on card regulation. This device can also be used to make a  
programmable output regulator, or by connecting a fixed resistor  
between the adjustment and output, the LM317L can be used as a  
precision current regulator.  
http://onsemi.com  
LOW CURRENT  
THREE−TERMINAL  
ADJUSTABLE POSITIVE  
VOLTAGE REGULATOR  
Features  
Pin 1. V  
2. V  
in  
Pb−Free Packages are Available  
SOIC−8  
D SUFFIX  
CASE 751  
out  
3. V  
Output Current in Excess of 100 mA  
Output Adjustable Between 1.2 V and 37 V  
Internal Thermal Overload Protection  
Internal Short Circuit Current Limiting  
Output Transistor Safe−Area Compensation  
Floating Operation for High Voltage Applications  
Standard 3−Lead Transistor Package  
Eliminates Stocking Many Fixed Voltages  
out  
8
4. Adjust  
5. N.C.  
6. V  
1
out  
7. V  
out  
8. N.C.  
TO−92  
Z SUFFIX  
CASE 29  
Pin 1. Adjust  
2. V  
3. V  
out  
in  
1
2
3
Simplified Application  
V
in  
V
out  
ORDERING INFORMATION  
LM317L  
See detailed ordering and shipping information in the package  
dimensions section on page 4 of this data sheet.  
R
1
240  
I
Adj  
+
Adjust  
C *  
in  
0.1mF  
C **  
O
1.0mF  
R
2
ꢀ* C is required if regulator is located an appreciable  
in  
** distance from power supply filter.  
** C is not needed for stability, however,  
O
** it does improve transient response.  
R
2
ꢁꢁǒ1 ) Ǔ) I  
V
out  
+ 1.2 ꢁꢁ  
ꢁR  
2
Ad ꢁ  
R
1
Since I is controlled to less than 100 mA, the error  
Adj  
associated with this term is negligible in most applications.  
© Semiconductor Components Industries, LLC, 2005  
1
Publication Order Number:  
October, 2005 − Rev. 8  
LM317L/D  

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