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TLV431TFTA

Public Made by Adom

by adom

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

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3D Model

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Datasheet

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Contents

README

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TLV431TFTA

Diodes Incorporated · Voltage Reference · SOT-23-3

TLV431TFTA from Diodes Incorporated, in a SOT-23-3. 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 (feedback) input. The internal error amplifier compares this pin to the 1.24V internal bandgap reference and modulates cathode current to hold REF at VREF. Typical reference input current is 0.15 uA (max 0.5 uA at R1=10k, R2=OC).
2 ANODE power_in Anode (ground return) of the shunt regulator. In a typical shunt configuration this pin ties to the negative rail / GND. All voltages are specified relative to ANODE.
3 CATHODE power_in Cathode of the shunt regulator; current-sinking terminal. Operates from VREF up to 18V (absolute max 20V) with cathode current 0.1 mA to 15 mA (recommended) and 20 mA absolute max. Dynamic output impedance 0.25 ohm typical.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23-3
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • TLV431AFTA
  • TLV431BFTA
  • TLV431TFTA
  • TLV431AE5TA
  • TLV431BE5TA
  • TLV431AH6TA
  • TLV431BH6TA

CAD (KiCad official)

  • Symbol: TLV431TFTA
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: tlv431tfta-etched.step / tlv431tfta-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlv431tfta.step / tlv431tfta.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (17 pp, sha256 bfc6983112ce20da, retrieved 2026-08-17, tier: manufacturer)
  • 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