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WL9005S3-33

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by Ray

WPMtek Wei Pan Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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WL9005S3-33

WPMtek Wei Pan Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L

WL9005S3-33 from WPMtek Wei Pan Microelectronics, in a SOT-23-3L. 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 Device ground reference. Connect directly to the system ground plane; place the input and output capacitor ground returns close to this pin for best transient/PSRR performance.
2 VOUT power_out Regulated LDO output, factory-trimmed to 3.3 V (±1.5%) for the -33 option code. Supplies up to 500 mA; requires a ≥1 µF ceramic (X7R/X5R) capacitor to GND placed close to the pin for stability.
3 VIN power_in Unregulated supply input, 2.0 V to 7.0 V (absolute max 9 V). Decouple with a ≥1 µF ceramic capacitor to GND as close as possible to the pin. In the 3-pin SOT-23-3 package VIN also acts as the enable (no separate EN pin).

Key specifications

Parameter Value
Manufacturer WPMtek Wei Pan Microelectronics
Package SOT-23-3L
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • WL9005S3-33
  • WL9005S3-33S5
  • WL9005S3-33P3
  • WL9005S3-33D4
  • WL9005S3-33F6

CAD (KiCad official)

  • Symbol: WL9005S3-33
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: WPMtek Wei Pan Microelectronics datasheet (11 pp, sha256 2ed7848826dfb0c6, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF