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Contents

README

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TPNCP431BVSNT1G

TECH PUBLIC · Voltage Reference · SOT-23

TPNCP431BVSNT1G 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 to the internal error amplifier. Compared against the internal 2.500 V bandgap; drives the shunt element to regulate VKA. Reference input current IREF ≈ 0.7 µA typ (4 µA max).
2 CATHODE passive Cathode of the shunt regulator (VKA). Sinks the programmed cathode current (1-100 mA operating, 150 mA absolute max) to regulate VKA between VREF (~2.5 V) and 36 V. Dynamic impedance 0.15 Ω typ.
3 ANODE passive Anode of the shunt regulator. Reference/return terminal; all voltages in the datasheet are referenced to the anode.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TPNCP431BVSNT1G

CAD (KiCad official)

  • Symbol: TPNCP431BVSNT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tpncp431bvsnt1g-etched.step / tpncp431bvsnt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpncp431bvsnt1g.step / tpncp431bvsnt1g.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (5 pp, sha256 efb88e04e00345aa, 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