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Contents

README

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LP38691DT-2.5

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2

LP38691DT-2.5 from Texas Instruments, in a TO-252-2. 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 OUT power_out Regulated output voltage of the regulator; the output current is internally limited, with foldback limiting to about 350 mA when VIN − VOUT exceeds 5 V and about 850 mA when it is below 4 V.
2 GND power_in Circuit ground for the regulator; on the TO-252 package the tab is thermally connected to the die and functions as a heat sink when soldered down to a large copper plane.
3 IN power_in Input supply voltage to the regulator, with a recommended range of 2.7 V to 10 V and an absolute maximum of 12 V with respect to GND.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TO-252-2
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: LP38691DT-2.5
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2 (KiCad packages3D, STEP)
  • 3D model files: lp38691dt-2-5-etched.step / lp38691dt-2-5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp38691dt-2-5.step / lp38691dt-2-5.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (38 pp, sha256 0f3d1f4e254f99d4, retrieved 2026-10-08, 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 0.3, 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