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2019-1.8YN5G

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HXY MOSFET Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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2019-1.8YN5G

HXY MOSFET · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L

2019-1.8YN5G from HXY MOSFET, 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 Power input pin; the absolute maximum input voltage is 7 V.
2 VSS power_in Ground pin for the regulator.
3 CE input Enable pin; the datasheet recommends driving it to 1.1 V to enable the output, and an internal 1 MΩ resistor is connected between CE and GND.
4 NC unconnected No connection; the pin is left floating (unused).
5 VOUT power_out Regulated output pin; the output voltage range is limited to VSS-0.3 V to VIN+0.3 V.

Key specifications

Parameter Value
Manufacturer HXY MOSFET
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
Input voltage VIN 7 V 2
Output current IOUT 400 mA 2
Power dissipation PD 300 mW 2
Operating temperature range TOPR -40 85 °C 2
Storage temperature range TSTG -40 150 °C 2
Soldering temperature 260 °C 10 sec 2
Junction temperature operating range -40 85 °C 1
Maximum output current IOUT (max) 300 mA 3
Load regulation ΔVOUT 50 mV VIN=VOUT+1V, 1mA≤IOUT≤100mA 3
Input stability ΔVOUT/(ΔVIN•VOUT) 0.39 %/V IOUT=40mA, 4.3V≤VIN≤15V 3
Dropout voltage 1 Vdrop1 100 mV VIN=4.3V, IOUT=100mA 3
Dropout voltage 2 Vdrop2 300 mV VIN=4.3V, IOUT=200mA 3
Supply current (operating) ISS1 80 μA 3
Supply current (shutdown) ISS2 1 μA VIN=5V, VCE=VSS 3
CE input voltage VCE 1.1 V 3
CE input current ICE 1 μA VIN=VCE=5V, VCE=0V to VIN 3
Ripple rejection PSRR 75 dB VIN=(VOUT+1)+1Vp-pAC, IOUT=40mA, f=1kHz 3
Output noise voltage en 50 uVrms IOUT=40mA, 300Hz~50kHz 3

CAD (KiCad official)

  • Symbol: 2019-1.8YN5G
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: 2019-1-8yn5g-etched.step / 2019-1-8yn5g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2019-1-8yn5g.step / 2019-1-8yn5g.glb are the bare package body.

Provenance

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

  • Datasheet: HXY MOSFET datasheet (6 pp, sha256 35b8124c045bb39c, retrieved 2026-10-18, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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