component

WL2803E33-5

Public Unreviewed

by Ray

WILLSEMI Will Semicon Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpmicwl2803e33-5
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

PCB Footprint

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Datasheet

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Download PDF
Contents

README

markdown

WL2803E33-5

WILLSEMI Will Semicon · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L

WL2803E33-5 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 VIN power_in Input supply pin. Operating range 2.5V to 5.5V (absolute max 6.5V). Recommended 4.7uF input decoupling capacitor to GND.
2 GND power_in Device ground reference.
3 EN input Enable input, active high. VENH >= 1.2V enables the regulator; VENL <= 0.4V places the device in shutdown (ISHDN ~0.1uA). Do not float.
4 NC unconnected Not connected. Leave floating or tie to GND.
5 VOUT power_out Regulated 3.3V output, up to 500mA load current. Requires 4.7uF output capacitor (>=10uF recommended when VOUT < 2V). Output accuracy ±2%.

Key specifications

Parameter Value
Manufacturer WILLSEMI Will Semicon
Package SOT-23-5L
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • WL2803E33-5/TR

CAD (KiCad official)

  • Symbol: WL2803E33-5
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: WILLSEMI Will Semicon datasheet (9 pp, sha256 bae638fd583090e6, 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