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LM317 Datasheet 3-terminal Adjustable Regulator

Manufacturer: Texas Instruments

Overview: LM317 SLVS044Z – SEPTEMBER 1997 – REVISED APRIL 2025 LM317 3-Pin Adjustable Regulator.

General Description

The LM317 is an adjustable three-pin, positive-voltage regulator capable of supplying more than 1.5A over an output voltage range of 1.25V to 37V.

The device requires only two external resistors to set the output voltage.

The device

Key Features

  • Output voltage range:.
  • Adjustable: 1.25V to 37V.
  • Output current: 1.5A.
  • Line regulation: 0.01%/V (typ).
  • Load regulation: 0.1% (typ).
  • Internal short-circuit current limiting.
  • Thermal overload protection.
  • Output safe-area compensation (new chip).
  • PSRR: 80dB at 120Hz for CADJ = 10μF (new chip).
  • Packages:.
  • 4-pin, SOT-223 (DCY).
  • 3-pin, TO-263 (KTT).
  • 3-pin, TO-220 (KCS, KCT), legacy chi.

LM317 Distributor