component

LHR4020DFGR

Public Made by Adom

by adom

Legendsemi Voltage Reference, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lhr4020dfgrfactory-2.0.0extractor-text
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LHR4020DFGR

Legendsemi · Voltage Reference · SOT-23-3

LHR4020DFGR from Legendsemi, in a SOT-23-3. 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 Supply voltage input; the recommended VIN is VOUT + 0.2 V to 5.5 V (VIN minimum is 2.5 V for every part except LHR4020), and the absolute maximum input voltage is -0.2 V to 7 V.
2 VOUT output Reference voltage output that sources and sinks up to ±10 mA, with a 0.1 µF to 10 µF output capacitor required from VOUT to GND and an absolute maximum output-to-ground short-circuit current of 30 mA.
3 GND power_in Ground reference pin for the device.

Key specifications

Parameter Value
Manufacturer Legendsemi
Package SOT-23-3
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: LHR4020DFGR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: lhr4020dfgr-etched.step / lhr4020dfgr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lhr4020dfgr.step / lhr4020dfgr.glb are the bare package body.

Provenance

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

  • Datasheet: Legendsemi datasheet (11 pp, sha256 7c817a36d821ca2c, retrieved 2026-10-10, 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