The document describes the LM317 3‑terminal adjustable positive voltage regulator, including its features, pin arrangement, and typical application circuits. It explains the basic operation, reference voltage, and the need for external capacitors and protection diodes.
Detailed electrical characteristics are listed, such as output current capability, voltage range, line and load regulation, thermal performance, and ripple rejection. Ordering information, maximum ratings, and example schematics for laboratory power supplies and current‑limit circuits are also provided.
| Output Current | 1.5 A (exceeds) |
|---|---|
| Output Voltage Range | 1.2 V to 37 V |
| Input‑Output Voltage Differential | 40 V |
| Storage Temperature Range | 65 °C to 150 °C |
| Line Regulation | 0.01 % to 0.04 % per V |
The LM317 can be adjusted to provide an output voltage between 1.2 V and 37 V.
It is capable of supplying more than 1.5 A of output current.