component
WL9005S3-18
Public Made by Adomby adom
WPMtek Wei Pan Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownWL9005S3-18
WPMtek Wei Pan Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L
WL9005S3-18 from WPMtek Wei Pan Microelectronics, in a SOT-23-3L. 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 | Ground reference pin; input and output capacitor returns must connect to this pin through a wide, short copper trace. |
| 2 | VOUT | power_out | Regulated output rated up to 500mA, with a ≥1µF ceramic output capacitor placed as close as possible to VOUT and GND and an absolute maximum of 5V. |
| 3 | VIN | power_in | Power input with a recommended operating range of 2.0V to 7.0V (absolute maximum 9V), with a ≥1µF ceramic capacitor placed close to the pin and VIN must exceed VOUT plus dropout for normal operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WPMtek Wei Pan Microelectronics |
| Package | SOT-23-3L |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | 2 | 7 | V | 5 | ||
| Quiescent Current | IQ | 0.3 | 0.5 | µA | VIN >VOUTNOM, VIN=EN, IOUT=0mA | 5 | |
| Shutdown Current | ISHDN | 0 | 0.1 | µA | EN=0 V, VOUT =0 V | 5 | |
| Output Current | IOUT | 500 | mA | VIN = VOUTNOM +1V | 5 | ||
| EN Threshold Voltage (CE High) | VCEH | 1.2 | V | 5 | |||
| EN Threshold Voltage (CE Low) | VCEL | 0.4 | V | 5 | |||
| Load Regulation | ΔVLOAD | 5 | 20 | mV | VIN = VOUTNOM +1V, 1mA≦ IOUT ≦100mA | 5 | |
| Operating Ambient Temperature | -40 | 85 | °C | 4 | |||
| Input Voltage | 2 | 7 | V | 4 | |||
| Output Voltage | 0.8 | 5 | V | 4 | |||
| Supply Input Voltage | VIN | -0.3 | 9 | V | 4 | ||
| EN to GND | VEN | -0.3 | 9 | V | 4 | ||
| Regulated Output Voltage | VOUT | -0.3 | 5 | V | 4 | ||
| Human Body Model (HBM) ESD | -4000 | 4000 | V | 4 | |||
| Charged Device Mode (CDM) ESD | -2000 | 2000 | V | 4 | |||
| Machine Mode (MM) ESD | 200 | V | 4 | ||||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 4 | ||
| Operating Junction Temperature | TJ | 150 | °C | 4 | |||
| Lead Temperature (Soldering) | TLEAD | 260 | °C | Soldering 10s | 4 | ||
| Power Dissipation, SOT23-3L | PD | 450 | mW | TA=+25℃ | 4 | ||
| Thermal Resistance (Junction to air), SOT23-3L | θJA | 275 | °C /W | Junction to air | 4 |
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 | and output capacitors must be back to the WL9005 ground pin using as wide and as short of a copper trace as is practical.Connections using long trace lengths, narrow trace widths, and/or | 10 |
CAD (KiCad official)
- Symbol:
WL9005S3-18 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
wl9005s3-18-etched.step/wl9005s3-18-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);wl9005s3-18.step/wl9005s3-18.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WPMtek Wei Pan Microelectronics datasheet (11 pp, sha256
2ed7848826dfb0c6, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).