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TL432LIAEDBZRQ1

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

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TL432LIAEDBZRQ1

Texas Instruments · Voltage Reference · SOT-23-3

TL432LIAEDBZRQ1 from Texas Instruments, in a SOT-23-3. 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 REF input Threshold relative to common anode; the reference pin cannot be left floating and needs IREF ≥ 0.4 µA, with reference input current limited to -5 mA to 10 mA (absolute maximum).
2 CATHODE bidirectional Shunt current/voltage input; cathode voltage is 36 V maximum (37 V absolute maximum) and cathode current IKA is specified from 0.6 mA to 15 mA (recommended), with -10 mA to 18 mA as the continuous absolute-maximum range.
3 ANODE power_in Common pin, normally connected to ground; all voltages are referenced to ANODE.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-3
Category Power Management (PMIC)
Pins 3

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 = 1 mA; TL43xLIAx devices 5
Deviation of reference input voltage over full temperature range VI(dev) 14 34 mV VKA = Vref, IKA = 1 mA; TL43xLIxE devices 5
Ratio of change in reference voltage to change in cathode voltage dVref/dVKA -1.4 -2.7 mV/V IKA = 1 mA; dVKA = 10 V - Vref 5
Ratio of change in reference voltage to change in cathode voltage dVref/dVKA -1 -2 mV/V IKA = 1 mA; dVKA = 36 V - 10 V 5
Reference input current Iref 0.2 0.4 µA IKA = 1 mA, R1 = 10kΩ, R2 = ∞ 5
Deviation of reference input current over full temperature range II(dev) 0.1 0.3 µA IKA = 1 mA, R1 = 10kΩ, R2 = ∞ 5
Minimum cathode current for regulation Imin 0.6 mA VKA = Vref 5
Off-state cathode current Ioff 0.1 1 µA VKA = 36 V, Vref = 0 5
Dynamic impedance /ZKA/ 0.3 0.75 Ω VKA = Vref, IKA = 1 mA to 15 mA 5
Cathode voltage VKA 36 V Minimum is VREF as printed 4
Continuous cathode current range IKA 0.6 15 mA 4
Operating free-air temperature TA -40 150 C TL43xLIxE (grade 0) 4
Cathode voltage VKA 37 V Voltages with respect to ANODE 4
Continuous cathode current range IKA -10 18 mA 4
Reference input current II(ref) -5 10 mA 4
Operating junction temperature range TJ -40 150 C 4
Storage temperature range Tstg -65 150 C 4
Junction-to-ambient thermal resistance RθJA 371.7 C/W DBZ, 3 pins 4
Junction-to-case (top) thermal resistance RθJC(top) 145.9 C/W DBZ, 3 pins 4
Junction-to-board thermal resistance RθJB 104.7 C/W DBZ, 3 pins 4
Junction-to-top characterization resistance ψJT 23.9 C/W DBZ, 3 pins 4
Junction-to-board characterization resistance ψJB 102.9 C/W DBZ, 3 pins 4

CAD (KiCad official)

  • Symbol: TL432LIAEDBZRQ1
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: tl432liaedbzrq1-etched.step / tl432liaedbzrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl432liaedbzrq1.step / tl432liaedbzrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (35 pp, sha256 05850016b6d74f2c, retrieved 2026-11-05, tier: manufacturer)
  • 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