component

TL431BQDBZR-TP

Public Made by Adom

by adom

TECH PUBLIC Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)tl431bqdbzr-tpfactory-2.0.0extractor-text
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TL431BQDBZR-TP

TECH PUBLIC · Voltage Reference · SOT-23

TL431BQDBZR-TP from TECH PUBLIC, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 CATHODE passive Cathode of the shunt regulator, rated to 36 V maximum (VKA) with 1 mA to 100 mA continuous cathode current.
2 REF input Reference input that sets the output voltage via an external resistor divider, with VREF of 2.495 V typ (2.483 to 2.507 V) and 10 mA maximum input current range.
3 ANODE power_in Anode of the regulator, normally connected to ground, with all voltage ratings referenced to it.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: TL431BQDBZR-TP
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tl431bqdbzr-tp-etched.step / tl431bqdbzr-tp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl431bqdbzr-tp.step / tl431bqdbzr-tp.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (5 pp, sha256 ae62a2e32557b5a6, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF