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Contents

README

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HG8805M5

HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

HG8805M5 from HGSEMI, in a SOT-23-5. 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 Regulator input supply; absolute maximum 8 V, with line regulation specified for Vin up to 6.5 V.
2 Gnd power_in Ground pin; ground pin current is 50 µA typ and 85 µA max for Iout from 0 to 600 mA.
3 EN input Enable/shutdown input; threshold low is 0.4 V max and high is 2 V min for Vin = 2.5 to 5.5 V, and the output is turned off when EN is low.
4 BP/Adj passive Bypass pin on fixed versions (a 470 pF capacitor to ground reduces output noise, may be left unconnected) and feedback/adjust pin on the adjustable version (Vref 1.27 V).
5 Vout power_out Regulated output delivering up to 600 mA, with output voltage accuracy of ±1.5% and current limit of 1300 mA typ.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package SOT-23-5
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
Input voltage Vin 8 V 3
Output current Iout 1 A 3
Output voltage Vout -0.3 V Printed as -0.3 to Vin+0.3; upper limit is Vin+0.3, not a number 3
Continuous total power dissipation PD 300 mW SOT-23-5 package 3
Operating ambient temperature TOpr -40 125 °C 3
Storage temperature TSTG -40 125 °C 3
Output voltage accuracy -1.5 1.5 % Iout = 1mA (reference voltage in Adj version) 3
Output voltage accuracy -3 2 % Iout = 1 to 600mA (reference voltage in Adj version) 3
Line regulation Vout/Vin -0.3 0.05 0.3 %/V Iout = 1mA, (Vout+1V) < Vin < 6.5V 3
Load regulation 0.5 1.5 % 1mA ≤ Iout ≤ 600mA, Cout = 1µF; pulse technique, duty cycle < 5% 3
Dropout voltage for Vout > 2.8V 600 750 mV Iout = 600mA 3
Dropout voltage for 2.0V < Vout ≤ 2.8V 800 1000 mV Iout = 600mA 3
Dropout voltage for Vout ≤ 2.0V 1300 1600 mV Iout = 600mA 3
EN input Low current -1 -0.3 µA VEN = Gnd 3
EN supply current 0.01 1 µA VEN = Gnd 3
Gnd (Ground) pin current 50 85 µA Iout = 0mA to 600mA 3
Maximum output current 600 mA Vout > 0.96*Vrating 3
Current limit 1300 mA 3
EN exit delay 600 µsec CBP = 0µF, Cout = 1 FIout =-100mA (Cout unit garbled in source) 3
EN input bias current 100 nA VEN = Vin 3
EN input threshold Low 0.4 V Vin = 2.5 to 5.5V 3
EN input threshold High 2 V Vin = 2.5 to 5.5V 3
Over-temperature shutdown 155 °C Iout = 10mA 3
Over-temperature hysteresis 10 °C Iout = 10mA 3
VOUT temperature coefficient 30 ppm Iout = 10mA 3
Power supply rejection ratio (PSRR) PSRR 55 dB Iout = 100mA, Cout = 2.2µF, f = 100Hz 3
Output voltage noise 12 µVrms f = 20Hz to 100kHz, Iout = 10mA 3

CAD (KiCad official)

  • Symbol: HG8805M5
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: hg8805m5-etched.step / hg8805m5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hg8805m5.step / hg8805m5.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (9 pp, sha256 946b60f9265a9f1a, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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