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LR1117DDX

Public Made by Adom

by adom

LRC Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs lr1117ddx: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
viewers lr1117ddx: viewers · Ray 23d ago
lr1117ddx-etched.glb lr1117ddx: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
lr1117ddx-etched.step lr1117ddx: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
lr1117ddx-hero.glb lr1117ddx: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
lr1117ddx-hero.overlay.json lr1117ddx: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
lr1117ddx.glb Publish 0.1.0 · Ray 23d ago
lr1117ddx.kicad_mod Publish 0.1.0 · Ray 23d ago
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package.json lr1117ddx: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
page.json lr1117ddx: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
README.md Publish 0.1.0 · Ray 23d ago

LR1117DDX

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

LR1117DDX from LRC, 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 Gnd power_in Pin 1 is Gnd (ground) on the fixed-voltage versions and Adj (adjustable feedback node, 1.25V reference) on the LR1117-ADJ version, so the exact function depends on which variant the MPN selects.
2 Vout power_out Regulated output: fixed versions of 1.2V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V at ±2%, or adjustable 1.25V to 12V, with a maximum output current of 1.4A.
3 Vin power_in Input supply, with a recommended input voltage range of at most 15V and a minimum 1 µF-class input capacitor (10 µF tantalum recommended) required for stability.

Key specifications

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

CAD (KiCad official)

  • Symbol: LR1117DDX
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: lr1117ddx-etched.step / lr1117ddx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lr1117ddx.step / lr1117ddx.glb are the bare package body.

Provenance

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

  • Datasheet: LRC datasheet (9 pp, sha256 67c0164382c5206c, retrieved 2026-10-10, tier: lcsc)
  • 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