LM317 is a Fairchild Semiconductor 3-terminal positive voltage regulator that is designed to supply more than 1.5A of load current with an output voltage adjustable over a 1.2 to 37V range. It employs internal current limiting, thermal shut-down and safe area compensation.
The LM317 is a monolithic 3‑terminal positive voltage regulator capable of supplying more than 1.5 A of load current with an output voltage adjustable from 1.2 V to 37 V. It includes internal current limiting, thermal shutdown, and safe‑area compensation.
The datasheet lists absolute maximum ratings, electrical characteristics, typical performance curves, and physical dimensions for the TO‑220 and D2 PAK packages. It also contains a life‑support policy stating the device is not authorized for critical life‑support applications without written approval.
| Maximum Output Current | >1.5 A |
|---|---|
| Adjustable Output Voltage Range | 1.2 V – 37 V |
| Package Types | TO‑220, D2 PAK |
| Operating Temperature Range | 0 °C – 125 °C |
| Maximum Power Dissipation | 20 W |
| Ripple Rejection | 66 dB |
The LM317 can supply more than 1.5 A of load current.
The device is offered in TO‑220 and D2 PAK packages.
It operates from 0 °C up to 125 °C.
No, Fairchild does not authorize its use in life‑support devices without written approval.