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WS4612EDA-5

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WILLSEMI Will Semicon Power Distribution Switches, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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WS4612EDA-5

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

WS4612EDA-5 from WILLSEMI Will Semicon, in a SOT-23-5L. 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 OUT power_out Output pin of the power switch; the datasheet gives an absolute maximum voltage range of -0.3 to 6.5 V for this pin.
2 GND power_in Ground pin, the device reference ground that the input and output capacitor negatives must return to.
3 FLG output Fault flag pin, open-drain and active low, asserted after a 7.5 ms (Typ.) delay during over-current or over-temperature; the FLG pin voltage range is -0.3 to 6.5 V.
4 EN input Enable pin must be driven to a clearly defined logic high or low (VIL max 0.4 V, VIH min 1.2 V at VIN=5 V), since floating it may cause unpredictable operation; the EN pin voltage range is -0.3 to 6.5 V.
5 IN power_in Input pin supplying the switch, with a supply input voltage range of 2.5 to 5.5 V and an absolute maximum IN pin voltage of -0.3 to 6.5 V.

Key specifications

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Current limit (WS4612ED, 2.4A option) ILIM 2.1 2.4 2.7 A Pulse test, Period=10mS, Duty cycle=4% 6
Quiescent supply current IQ 26 50 μA IOUT=0, VIN=5V, VEN=enable 6
Shutdown current ISD 1 μA VEN=disable 6
Reverse current IREV 1 μA VIN=0V, VEN=disable, VOUT=5V, Current flow to VIN 6
Main-FET ON resistance RON 60 70 mΩ VIN=5V, VEN=enable, IOUT=500mA 6
Auto-discharge FET ON resistance RDCHG 50 100 Ω VIN =5V, VEN=disable, VOUT=2V 6
Short circuit current limiting response time tSHORT 1 μs OUT connected to GND, CL=1μF 6
EN input low voltage VIL 0.4 V VIN=5V 6
EN input high voltage VIH 1.2 V VIN=5V 6
OUT pin turn-on time after EN ON tON 600 μs VIN=5V CL=1μF RL=5ohm 6
Fault flag output blanking time tBLANK 7.5 ms VIN=5.0V 6
Over-temperature shutdown threshold TSD 160 °C 6
Over-temperature threshold hysteresis THYS 20 °C 6
Under voltage lock out threshold VUVLO 2.25 2.4 V 6
Under voltage lock out hysteresis VUVLO-HYS 250 mV 6
IN pin voltage range VIN -0.3 6.5 V 4
OUT pin voltage range VOUT -0.3 6.5 V 4
ISET pin voltage range VISET -0.3 6.5 V 4
FLG pin voltage range VFLG -0.3 6.5 V 4
EN pin voltage range VEN -0.3 6.5 V 4
Junction temperature TJ -40 150 °C 4
Lead temperature (soldering) TL 260 °C Soldering, 10s 4
Storage temperature Tstg -55 150 °C 4
ESD HBM HBM 2000 V 4
ESD CDM CDM 2000 V 4
Supply input voltage range VIN 2.5 5.5 V 4
Operating ambient temperature TA -40 85 °C 4
Thermal resistance, junction to ambient RθJA 250 °C/W Surface mounted on FR-4 board, 2 oz, 11 square inch Cu area; PCB 1.51.5 square inches 4
Thermal resistance, junction to case RθJC 58 °C/W 4

CAD (KiCad official)

  • Symbol: WS4612EDA-5
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: ws4612eda-5-etched.step / ws4612eda-5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ws4612eda-5.step / ws4612eda-5.glb are the bare package body.

Provenance

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

  • Datasheet: WILLSEMI Will Semicon datasheet (16 pp, sha256 da79c5b4ae3031b9, retrieved 2026-10-18, 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