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LM317
3-Terminal Positive Adjustable Regulator
Features
• Output Current In Excess of 1. 5A
• Output Adjustable Between 1. 2V and 37V
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe Operating Area Compensation
• TO-220 Package
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.
TO-220
1
1. Adj 2. Output 3. Input
Internal Block Diagram
InVpuint 3
+
-
Voltage
Reference
Protection
Circuitry
1
VAaddjj
©2001 Fairchild Semiconductor Corporation
Rlimit
2 Vo
Output
Rev. 1.0.0