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Contents

README

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STMPS2161STR

STMicroelectronics · Power Distribution Switches · SOT-23-5

STMPS2161STR from STMicroelectronics, in a SOT-23-5. 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 OUT output Power switch output with 1000 mA rated continuous current and 90 mΩ typical on-resistance at 5 V supply voltage.
2 GND power_in Ground reference.
3 FAULT output Open-drain fault indicator output, active low, asserts within 4-15 ms for overcurrent/overload faults or immediately for overtemperature and undervoltage faults.
4 EN input Active-low enable input for power switch control with logic thresholds VIH minimum 2.0 V and VIL maximum 0.4-0.8 V.
5 IN power_in Supply voltage input with 2.7 to 5.5 V operating range and 12 µA maximum standby current.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: STMPS2161STR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: stmps2161str-etched.step / stmps2161str-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stmps2161str.step / stmps2161str.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (37 pp, sha256 700138497f100d55, retrieved 2026-09-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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