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Contents

README

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WS4601E-5

WILLSEMI Will Semicon · Power Distribution Switches · SOT-23-5L

WS4601E-5 from WILLSEMI Will Semicon, in a SOT-23-5L. 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 power_out Output of high-side power switch with maximum continuous current 1.0A at 80mΩ ON-resistance (VIN=5V) and 0.7A short-circuit current limit.
2 GND power_in Ground reference.
3 FLG tri_state Open-drain fault flag output, active low, asserted with 8ms typical delay when over-current (1.5A threshold) or over-temperature (160°C threshold) condition occurs.
4 EN input Enable input, active high with logic thresholds VIL=0.4V and VIH=1.6V (at VIN=5V); drive low to enter shutdown mode with quiescent current <1µA.
5 IN power_in Power supply input, rated 2.5V to 5.5V with under-voltage lockout at 2.2V typical, quiescent current 48-60µA.

Key specifications

Parameter Value
Manufacturer WILLSEMI Will Semicon
Package SOT-23-5L
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: WS4601E-5
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: ws4601e-5-etched.step / ws4601e-5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ws4601e-5.step / ws4601e-5.glb are the bare package body.

Provenance

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

  • Datasheet: WILLSEMI Will Semicon datasheet (10 pp, sha256 798fcca2bdd0a25b, 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