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lmv431aimfx-tp

Public Unreviewed

by Ray

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

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README

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LMV431AIMFX-TP

TECH PUBLIC · Voltage Reference · SOT-23

LMV431AIMFX-TP 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. Feedback node driven from the external R1/R2 divider so that VKA = Vref·(1 + R1/R2) + Iref·R1, with Vref ≈ 1.24 V (1.234-1.246 V) and reference input current Iref ≈ 0.7 µA typ (4 µA max).
2 CATHODE passive Shunt regulator cathode (K). Sinks the regulated cathode current IKA (0.1-100 mA continuous, 18 V max VKA) to hold VKA at the programmed value. Minimum cathode current for regulation is 55 µA typ (80 µA max); off-state leakage is 10 nA typ at VKA=6 V, VREF=0.
3 ANODE passive Shunt regulator anode (A), the device's ground/return reference. 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

  • LMV431AIMFX-TP

CAD (KiCad official)

  • Symbol: LMV431AIMFX-TP
  • 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: TECH PUBLIC datasheet (None pp, sha256 5aea44fa3acd13d6, 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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