component

LM317TG

Public Made by Adom

by adom

onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lm317tgfactory-2.0.0extractor-text
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Generated by kicad-footprint-generator · KiCad file format 20260206
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LM317TG

onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220

LM317TG from onsemi, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 ADJ passive Adjustment pin tied to the internal reference divider; the adjust-pin current IADJ is 46 µA typical and 100 µA maximum, and its change is limited to 5.0 µA maximum over line and load.
2 OUTPUT power_out Regulated output, adjustable from 1.2 V to 37 V, with output current above 1.5 A and an input-output differential of 40 V maximum.
3 INPUT power_in Unregulated input supply; the input-output voltage differential must not exceed 40 V (absolute maximum), and the regulator is to be bypassed with CI (0.1 µF) when placed far from the supply filter.

Key specifications

Parameter Value
Manufacturer onsemi
Package TO-220
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: LM317TG
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: lm317tg-etched.step / lm317tg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm317tg.step / lm317tg.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (8 pp, sha256 3547e3ca0ab8e638, retrieved 2026-10-09, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF