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Contents

README

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WL2808E33-5

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

WL2808E33-5 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 VIN power_in Input supply pin; the datasheet gives an operating supply range of 2.5V to 5.5V and an absolute maximum VIN range of -0.3V to 6.5V.
2 GND power_in Ground reference pin.
3 EN input Active-high enable pin; logic high threshold is 1.2V minimum and logic low is 0.4V maximum, with VEN limited to -0.3V to VIN.
4 NC unconnected Not connected.
5 VOUT power_out Regulated output pin; the output range is 1.2V to 3.3V and the absolute VOUT range is -0.3V to VIN.

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
Output Voltage (factor of VOUT, VOUT≧2V) VOUT 0.98 1.02 V VOUT≧2V, IOUT=1mA 3
Dropout Voltage VDROP 170 200 mV VOUT=2.8V, IOUT=200mA 3
Dropout Voltage VDROP 250 300 mV VOUT=2.8V, IOUT=300mA 3
Line Regulation △VLINE 0.01 0.15 %/V VIN=2.7~5.5V, IOUT=1mA 3
Load Regulation △VLoad 20 35 mV VOUT=2.8V, IOUT=1~300mA 3
Quiescent Current IQ 30 50 μA VOUT=2.8V, IOUT=0 3
Shut-down Current ISHDN 1 μA VEN=0V 3
EN logic high voltage VENH 1.2 V VIN=5.5V, IOUT=1mA 3
EN logic low voltage VENL 0.4 V VIN=5.5V, VOUT=0V 3
EN Input Current IEN 1 μA VEN= 0 to 5.5V 3
Short Current ISHORT 90 mA VEN=VIN, VOUT Short to GND with 1Ω 3
Power Supply Rejection Rate PSRR 75 dB VIN=(VOUT+1V)DC+0.5VP-P, F=217Hz, Iout=10mA 3
Power Supply Rejection Rate PSRR 65 dB VIN=(VOUT+1V)DC+0.5VP-P, F=10KHz, Iout=10mA 3
Output Noise Voltage eNO 100 μVRMS 10Hz to 100KHz, COUT=1μF 3
VIN Range VIN -0.3 6.5 V 3
VEN Range VEN -0.3 V 3
VOUT Range VOUT -0.3 V 3
Lead Temperature Range 260 °C 3
Storage Temperature Range -55 150 °C 3
Operating Junction Temperature Range 150 °C 3
Operating Supply voltage 2.5 5.5 V 3
Operating Temperature Range -40 85 °C 3
Thermal Resistance, junction-to-ambient RθJA 250 °C/W 3

CAD (KiCad official)

  • Symbol: WL2808E33-5
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: wl2808e33-5-etched.step / wl2808e33-5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); wl2808e33-5.step / wl2808e33-5.glb are the bare package body.

Provenance

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

  • Datasheet: WILLSEMI Will Semicon datasheet (9 pp, sha256 332362e3f4478bf8, retrieved 2026-10-17, 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