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LR1117DSX

Public Made by Adom

by adom

LRC Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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lr1117dsx-etched.step lr1117dsx: 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
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lr1117dsx-hero.overlay.json lr1117dsx: 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
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LR1117DSX

LRC · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

LR1117DSX from LRC, in a SOT-223. 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 Ground pin of the fixed-voltage version; the datasheet names it only as Ground and gives no electrical limit for it.
2 Vout power_out Regulated output for the fixed versions (1.2V, 1.8V, 2.5V, 2.85V, 3.3V, 5V, ±2%), rated for a maximum output current of 1.4A and used with a 10uF tantalum or MLCC output capacitor.
3 Vin power_in Input supply pin with a maximum input voltage of 15V under recommended operating conditions, used with a 10uF input capacitor.

Key specifications

Parameter Value
Manufacturer LRC
Package SOT-223
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: LR1117DSX
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: lr1117dsx-etched.step / lr1117dsx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lr1117dsx.step / lr1117dsx.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 2026-10-09, 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