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TP431R124S3-1

Public Made by Adom

by adom

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

componentpmictp431r124s3-1
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Symbol & Footprint

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Datasheet

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Contents

README

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TP431R124S3-1

TECH PUBLIC · Voltage Reference · SOT-23

TP431R124S3-1 from TECH PUBLIC, 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 pin. Voltage at this pin is regulated to Vref (typ 1.24 V) with respect to ANODE by the internal error amplifier. Connect to the resistor divider tap to program the cathode voltage: V_KA = Vref*(1 + R1/R2) + Iref*R1.
2 ANODE power_in Anode terminal, common/ground reference for the device. All voltages in the datasheet are referenced to the anode.
3 CATHODE power_out Cathode terminal. Sinks the shunt current (I_KA) to regulate V_KA. Absolute max V_KA = 18 V; continuous cathode current range -100 mA to +150 mA; minimum cathode current for regulation ~55 µA (typ).

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • TP431R124S3-1

CAD (KiCad official)

  • Symbol: TP431R124S3-1
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tp431r124s3-1-etched.step / tp431r124s3-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tp431r124s3-1.step / tp431r124s3-1.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (5 pp, sha256 02783c7fc509d6ca, 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