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Contents

README

markdown

LM1117DTX-2.5

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

LM1117DTX-2.5 from Texas Instruments, in a TO-252. 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/GND power_in Ground connection (0V reference) for the fixed-output 2.5V voltage regulator.
2 VOUT power_out Regulated output voltage at 2.5V nominal with ±2% tolerance (2.45V to 2.55V over 0°C to 125°C operating temperature) and maximum output current of 800mA.
3 VIN power_in Input voltage supply pin requiring 3.9V to 10V minimum to produce regulated 2.5V output with minimum dropout voltage of 1.1V at 100mA load current.

Key specifications

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

CAD (KiCad official)

  • Symbol: LM1117DTX-2.5
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: lm1117dtx-2-5-etched.step / lm1117dtx-2-5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm1117dtx-2-5.step / lm1117dtx-2-5.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (47 pp, sha256 7fd0304d2893365e, retrieved 2026-10-01, 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-4-5-20251001 (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