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lr432btlt1g

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by Ray

LRC Supervisor and Reset ICs, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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LR432BTLT1G

LRC · Supervisor and Reset ICs · SOT-23

LR432BTLT1G 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 feedback node compared internally against the 1.240 V bandgap reference; typical input current 0.15 µA (max 0.4 µA) at IKA=10 mA. In an adjustable configuration this pin is driven by the R1/R2 divider between cathode and anode, setting VKA = VREF·(1 + R1/R2) + IREF·R1.
2 K power_in Cathode. Regulated shunt terminal that sinks the control current when VREF reaches the internal 1.240 V threshold. Absolute maximum cathode voltage VKA = 20 V; continuous cathode current IK = 100 mA; minimum cathode current for regulation IKA(MIN) ≈ 55 µA (80 µA max); off-state leakage 0.04 µA typ at VKA = 18 V.
3 A power_in Anode. Ground/return terminal for the shunt-regulator current path; the internal reference and the R1/R2 divider are referenced to this pin.

Key specifications

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

Ordering variants

  • LR432BTLT1G
  • LR432BTLT1GATLT1G
  • LR432BTLT1GAPTLT1G
  • LR432BTLT1GBPTLT1G

CAD (KiCad official)

  • Symbol: LR432BTLT1G
  • 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 490011c1d455474e, 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

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PCB Footprint

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Datasheet

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