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WR0332-30A30R

Wayon · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3

WR0332-30A30R from Wayon, in a SOT-23-3. 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 Common ground for the regulator; the datasheet gives no electrical limit for this pin.
2 OUT power_out Regulated output voltage that requires a low-ESR capacitor, typically 1µF, from OUT to ground for stability, placed as close to OUT and GND as possible; an internal 150Ω (typical) pull-down resistor discharges VOUT when the regulator is shut down.
3 IN power_in Input voltage supply, specified for 2.2 V to 5.5 V operation, to be bypassed to GND with a typical 1µF capacitor placed as close to the IN and GND pins as possible.

Key specifications

Parameter Value
Manufacturer Wayon
Package SOT-23-3
Category Power Management (PMIC)
Pins 3

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage accuracy (VOUT>1.5V, IOUT=1mA), lower/upper factor VOUT 0.98 1.02 VOUT VOUT>1.5V, IOUT=1mA 5
Dropout voltage (VOUT=3.0V) VDO 240 360 mV VOUT=3.0V, IOUT=300mA 5
Quiescent current IQ 60 80 μA VOUT=3.3V, IOUT=0mA 5
Shut-down current ISHDN 0.1 1 μA VEN = 0V 5
Line regulation LNR 0.05 0.1 %/V VOUT=3.3V, VIN=4.3~5.5V, IOUT=1mA 5
Thermal shutdown threshold TSD 165 ºC 6
Input voltage range (recommended) VIN 2.2 5.5 V 4
EN input voltage range (recommended) VEN 0 5.5 V 4
Nominal output voltage range (recommended) VOUT 1 3.3 V 4
Output current (recommended) IOUT 0 300 mA 4
Operating temperature range (recommended) TA -40 125 °C 4
Input voltage range (absolute maximum) VIN -0.3 6 V 3
EN input voltage range (absolute maximum) VEN -0.3 6 V 3
Output voltage range (absolute maximum) VOUT -0.3 6 V 3
Maximum output current (absolute maximum) IOUT 500 mA 3
Power dissipation PD(MAX), SOT23-3 PD(MAX) 681 mW TA = 25ºC 3
Junction temperature TJ 150 °C 3
Lead temperature range TLEAD 260 °C 3
Storage temperature range TSTG -55 150 °C 3
ESD susceptibility HBM ESD HBM -8000 8000 V HBM 3
Thermal resistance junction-ambient, SOT23-3 RθJA 183.3 °C/W SOT23-3, 2cm x 2cm 2-layer FR4 PCB, 1 oz copper 3
Thermal resistance junction-board, SOT23-3 RθJB 148.1 °C/W SOT23-3, JEDEC JESD51-7 board 3
Thermal resistance junction-case (top), SOT23-3 RθJC 119.2 °C/W SOT23-3, JEDEC JESD51-7 board 3
Thermal resistance junction-case (bottom), SOT23-3 RθJC 31.75 °C/W SOT23-3, JEDEC JESD51-7 board 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper close as possible to their respective LDO pins. Connect the CIN and COUT grounds, with all LDO ground pins as close together as possible, through a wide copper surface. Using through-holes and long wi 22

CAD (KiCad official)

  • Symbol: WR0332-30A30R
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: wr0332-30a30r-etched.step / wr0332-30a30r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); wr0332-30a30r.step / wr0332-30a30r.glb are the bare package body.

Provenance

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

  • Datasheet: Wayon datasheet (30 pp, sha256 115200abc938e7fe, 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