component

lr432alt1g

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by Ray

LRC Voltage Reference, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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LR432ALT1G

LRC · Voltage Reference · SOT-23

LR432ALT1G from LRC, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 REF input Reference input. High-impedance sense input; internal amplifier drives the cathode to hold this pin at VREF (typ. 1.240 V, 1.228-1.252 V). Set the output voltage with a resistor divider: Vo = VREF·(1+R1/R2) + IREF·R1. Input current IREF ≈ 0.25 µA typ, 0.5 µA max.
2 K passive Cathode. Regulated output terminal that sinks current from the load to hold VREF between REF and Anode. Maximum cathode voltage VKA = 18 V; continuous cathode current IK up to 100 mA; minimum operating current 60-80 µA; dynamic output impedance ~0.2 Ω typ.
3 A passive Anode. Common/ground return terminal of the shunt regulator; typically tied to circuit ground in shunt/series/switching-regulator and voltage-reference topologies.

Key specifications

Parameter Value
Manufacturer LRC
Package SOT-23
Category PMIC
Pins 3

Ordering variants

  • LR432ALT1G
  • LR432ALT1GLT3G

CAD (KiCad official)

  • Symbol: LR432ALT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: LRC datasheet (None pp, sha256 bf9231714b6cad8c, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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