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LM317M

3-Terminal 0.5A Positive Adjustable Regulator
Features
Output Current in Excess of 0.5A Output Adjustable Between 1.2V and 37V Internal Thermal Overload Protection Internal Short Circuit Current Limiting Output Transistor Safe Area Compensation Floating Operation for High Voltage Applications

Description
The LM317M is a 3-terminal adjustable positive voltage regulator capable of supplying in excess of 500mA over an output voltage range of 1.2V to 37V. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage.
D-PAK
2

1 3

1. Adj 2. Output 3. Input TO-220

12 3

Internal Block Diagram
V in Input 3

-

V olta ge Re fe re nce

P rote ction Circ uitry

R limit

2 1 V ad j

Vo
Output

Rev. 1.0.2
2002 Fairchild Semiconductor Corporation

LM317M Datasheet Fairchild Download PDF

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LM317M DATASHEET