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TL432BIDBZR

Texas Instruments · Voltage Reference · SOT-23-3

TL432BIDBZR 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 / threshold input. Internal error amplifier compares this pin against the internal 2.5 V bandgap; the resistor divider from CATHODE to ANODE ties here to program the regulated Vka. Reference input current range -0.05 to 10 mA (absolute max).
2 CATHODE passive Shunt cathode (K) - the regulated node. Sinks 1 mA to 100 mA when Vref threshold is exceeded. Vka range Vref to 36 V (abs max 37 V); continuous cathode current -100 to 150 mA.
3 ANODE passive Shunt anode (A), the common/ground return. All voltage specifications are referenced to this pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TL432BIDBZR
  • TL432BIDBZT
  • TL432BIDBZRIDBVR
  • TL432BIDBZRIDBVT
  • TL432BIDBZRIPK

CAD (KiCad official)

  • Symbol: TL432BIDBZR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tl432bidbzr.step 59 KB You want the bare part, or you mark your own boards.
tl432bidbzr-etched.step 1.8 MB You want the part with TL432BIDBZR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 457 faces against 69 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Texas Instruments datasheet (83 pp, sha256 973a56a301e94b8b, 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