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Contents

README

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LM338T

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

LM338T from Texas Instruments, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 ADJ input Output voltage adjustment pin requiring 45-100 µA current (TJ 0-125°C) with 1.25 V nominal reference for resistor divider voltage setting.
2 VOUT output Voltage output pin capable of supplying 5 A continuous current over 1.2 V to 32 V output voltage range.
3 VIN power_in Supply input pin with required 3 to 40 V input-to-output differential voltage for regulation.

Key specifications

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

CAD (KiCad official)

  • Symbol: LM338T
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: lm338t-etched.step / lm338t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm338t.step / lm338t.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (36 pp, sha256 dc0d178061b4948c, retrieved 2026-09-23, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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