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Contents

README

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TL432QPK

Texas Instruments · Voltage Reference · SOT-89-3

TL432QPK from Texas Instruments, in a SOT-89-3. 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 bidirectional Shunt current/voltage input (cathode) that must be held within 36 V (absolute maximum 37 V referenced to ANODE) and driven with a cathode current of 1 mA to 100 mA.
2 ANODE output Common pin, normally grounded, to which all voltage ratings are referenced; on the SOT-89 it is also the tab attached to the substrate, so it must be connected to ANODE or left open.
3 REF input Reference input that the internal 2.5 V reference drives to; it must not be left floating, requires IREF of at least 4 µA, and its input current is limited to an absolute range of -0.05 mA to 10 mA.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-89-3
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: TL432QPK
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: tl432qpk-etched.step / tl432qpk-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl432qpk.step / tl432qpk.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (86 pp, sha256 313277b9351e61ed, retrieved 2026-10-08, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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