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TLV431BQDBZR

Public Made by Adom

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

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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TLV431BQDBZR

Texas Instruments · Voltage Reference · SOT-23-3

TLV431BQDBZR from Texas Instruments, 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. Sets the shunt threshold relative to ANODE; when V(REF-ANODE) reaches the internal 1.24 V reference the device sinks cathode current. Reference terminal current is ~0.15 µA typ (Iref_max 0.5 µA).
2 CATHODE input Shunt current/voltage input (K). Sinks the regulated cathode current (recommended IK 0.1-15 mA, absolute max ±20 mA) when the REF pin exceeds the internal 1.24 V reference. Absolute maximum cathode voltage 7 V.
3 ANODE power_in Common/anode pin (A), normally connected to circuit ground. All voltages are referenced to this pin unless otherwise noted.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-3
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • TLV431BQDBZR
  • TLV431BQDBZRDBZT
  • TLV431BQDBZRDBVR
  • TLV431BQDBZRDBVT
  • TLV431BQDBZRPK
  • TLV431BQDBZRDCKR
  • TLV431BQDBZRDCKT
  • TLV431BQDBZRDR
  • TLV431BQDBZRD
  • TLV431BQDBZRLP
  • TLV431BQDBZRLPR

CAD (KiCad official)

  • Symbol: TLV431BQDBZR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: tlv431bqdbzr-etched.step / tlv431bqdbzr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlv431bqdbzr.step / tlv431bqdbzr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (54 pp, sha256 8930f4ffca0d013e, 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