FAIRCHILD LM317 User Guide
Summary
This essential IC is a versatile, high-current adjustable positive voltage regulator designed to output stable power between 1.2V and 37V, handling over 1.5A while ensuring internal thermal and short-circuit protection. This technical manual serves as a comprehensive guide, detailing absolute maximum ratings, electrical characteristics, load regulation curves, and operational parameters for optimal integration into your design. It is the definitive resource for electronics engineers and circuit designers requiring reliable, stable DC power supply solutions.
Page 1 Text Content
317 3-Term in al P sitive A ju stab le R eg lato
March 2000 Revised June 2005
LM317 3-Terminal Positive Adjustable Regulator General Description Features This monolithic integrated circuit is an adjustable 3-terminal ■Output Current In Excess of 1.5A positive voltage regulator designed to supply more than
■Output Adjustable Between 1.2V and 37V
1.5A of load current with an output voltage adjustable over
Internal Thermal Overload Protection
a 1.2 to 37V. It employs internal current limiting, thermal
Internal Short Circuit Current Limiting
shut-down and safe area compensation.
■Output Transistor Safe Operating Area Compensation ■TO-220 Package ■D2 PAK Package
Ordering Code: Product Number Package Operating Temperature LM317T TO-220 0q C to 125q C LM317D2TXM D2 PAK 0q C to 125q C
Connection Diagrams
Internal Block Diagram
© 2005 Fairchild Semiconductor Corporation DS400281 www.fairchildsemi.com
Page Summary Contents For FAIRCHILD LM317 User Guide
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 5 |
| File Size | 592.50 KB |
| Published | May 19, 2026 |
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