component

tlv431aqfta

Public Made by Adom

by adom

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

componentpmictlv431aqfta
Overview Files Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Contents

README

markdown

TLV431AQFTA

Diodes Incorporated · Voltage Reference · SOT-23

TLV431AQFTA from Diodes Incorporated, 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 / feedback input. Internal error amplifier compares this pin to the 1.24V bandgap reference and modulates cathode current to force VREF across the external divider tap. Typical IREF = 0.15µA (0.5µA max) at 25°C; absolute-max input current range -0.05 to 3mA.
2 CATHODE power_in Cathode (K) - the shunt terminal that sinks current to regulate. Absolute-max VKA = 20V, IKA = ±20mA continuous; recommended operating VKA from VREF to 18V, IKA from 0.1mA to 15mA. Minimum cathode current for regulation is ~55µA typical (80µA max at 25°C).
3 ANODE power_in Anode (A) - the ground-side / return terminal for the shunt regulator. All internal references and the cathode current return through this pin.

Key specifications

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

Ordering variants

  • TLV431AQFTA
  • TLV431AQFTATLV431BQFTA
  • TLV431AQFTATLV431TQFTA
  • TLV431AQFTATLV431AQE5TA
  • TLV431AQFTATLV431BQE5TA

CAD (KiCad official)

  • Symbol: TLV431AQFTA
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tlv431aqfta-etched.step / tlv431aqfta-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlv431aqfta.step / tlv431aqfta.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (None pp, sha256 f4c428fc40e3ab42, 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

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

Datasheet

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Download PDF