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LM317M
3-Terminal 0.5A Positive Adjustable Regulator
Features
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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
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