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AMS1117-5.0S

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UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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AMS1117-5.0S

UMW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89

AMS1117-5.0S from UMW, in a SOT-89. 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 GND power_in Ground reference pin (labelled GND/ADJ on datasheet; for fixed-voltage versions this pin is the ground return); I/O designated I/O on page 1.
2 VOUT power_out Regulated 5.0 V fixed output (4.900 V min, 5.100 V max, ±2%); rated for up to 1 A with 1.2 V typical dropout voltage at 1 A; requires 22 µF tantalum output capacitor for stability.
3 VIN power_in Unregulated input supply voltage; recommended operating maximum 12 V, absolute maximum 18 V; minimum input must exceed VOUT by at least the dropout voltage (typ. 1.2 V at 1 A).

Key specifications

Parameter Value
Manufacturer UMW
Package SOT-89
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: AMS1117-5.0S
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: ams1117-5-0s-etched.step / ams1117-5-0s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ams1117-5-0s.step / ams1117-5-0s.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (13 pp, sha256 5ec219092aa45bd9, retrieved 2026-09-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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