© 2005 Fairchild Semiconductor Corporation

DS400281

www.fairchildsemi.com

March 2000

Revised June 2005

LM317

3-Terminal Positive Adjustable Regulator

General Description

This monolithic integrated circuit is an adjustable 3-terminal

positive voltage regulator designed to supply more than

1.5A of load current with an output voltage adjustable over

a 1.2 to 37V. It employs internal current limiting, thermal

shut-down and safe area compensation.

Features

s Output Current In Excess of 1.5A

s Output Adjustable Between 1.2V and 37V

s Internal Thermal Overload Protection

s Internal Short Circuit Current Limiting

s Output Transistor Safe Operating Area Compensation

s TO-220 Package

s D2 PAK Package

Ordering Code:

Connection Diagrams

Internal Block Diagram

Product Number

Package

Operating Temperature

LM317T

TO-220

0

qC to 125qC

LM317D2TXM

D2 PAK

0

qC to 125qC