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TL432AIDBZR

Public Made by Adom

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Texas Instruments Voltage Reference, SOT-23-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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TL432AIDBZR

Texas Instruments · Voltage Reference · SOT-23-3

TL432AIDBZR 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's voltage to the internal 2.495 V bandgap reference. Typical Iref = 2 µA, max 4 µA (10 µA absolute max). Setting REF equal to Vref (2.495 V) with an external resistor divider between CATHODE and ANODE programs the regulated cathode voltage VKA = Vref × (1 + R1/R2).
2 CATHODE passive Shunt current/voltage input (K). Sinks 1 mA to 100 mA (150 mA absolute max) when the device is in regulation. VKA operates from Vref up to 36 V (37 V abs max). Off-state leakage typ 0.1 µA at VKA = 36 V, Vref = 0. Dynamic impedance
3 ANODE passive Common pin (A), normally connected to circuit ground / low side of the divider. All device voltages are referenced to ANODE unless otherwise stated.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TL432AIDBZR
  • TL432AIDBZT
  • TL432AIDBZRIDBVR
  • TL432AIDBZRIDBVT
  • TL432AIDBZRIPK

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Reference voltage Vref 2470 2495 2520 mV VKA = Vref, IKA = 10 mA 9
Deviation of reference input voltage over full temperature range (SOT-23-3 and TL432 devices) VI(dev) 14 34 mV VKA = Vref, IKA = 10 mA; SOT23-3 and TL432 devices 9
Ratio of change in reference voltage to change in cathode voltage ΔVref/ΔVKA -1.4 -2.7 mV/V IKA = 10 mA; ΔVKA = 10 V – Vref 9
Ratio of change in reference voltage to change in cathode voltage ΔVref/ΔVKA -1 -2 mV/V IKA = 10 mA; ΔVKA = 36 V – 10 V 9
Reference input current Iref 2 4 µA IKA = 10 mA, R1 = 10 kΩ, R2 = ∞ 9
Deviation of reference input current over full temperature range II(dev) 0.8 2.5 µA IKA = 10 mA, R1 = 10 kΩ, R2 = ∞ 9
Minimum cathode current for regulation Imin 0.4 0.7 mA VKA = Vref 9
Off-state cathode current Ioff 0.1 0.5 µA VKA = 36 V, Vref = 0 9
Dynamic impedance /zKA/ 0.2 0.5 Ω VKA = Vref, f ≤ 1 kHz, IKA = 1 mA to 100 mA 9
Cathode voltage VKA 37 V All voltage values with respect to ANODE 4
Continuous cathode current range IKA -100 150 mA 4
Reference input current range II(ref) -0.05 10 mA 4
Operating virtual junction temperature TJ 150 °C 4
Storage temperature range Tstg -65 150 °C 4
Cathode voltage VKA 36 V 4
Cathode current IKA 1 100 mA 4
Operating free-air temperature (TL43xxI) TA -40 85 °C TL43xxI 4
Junction-to-ambient thermal resistance (DBZ, SOT-23-3) RθJA 206 °C/W DBZ package 4
Junction-to-case (top) thermal resistance (DBZ, SOT-23-3) RθJC(top) 76 °C/W DBZ package 4

CAD (KiCad official)

  • Symbol: TL432AIDBZR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: tl432aidbzr-etched.step / tl432aidbzr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl432aidbzr.step / tl432aidbzr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tl432aidbzr.step 59 KB You want the bare part, or you mark your own boards.
tl432aidbzr-etched.step 1.7 MB You want the part with TL432AIDBZR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 428 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 (74 pp, sha256 eefaeb640dec3168, 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