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TS2431AILT

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

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Datasheet

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Contents

README

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TS2431AILT

STMicroelectronics · Voltage Reference · SOT-23

TS2431AILT from STMicroelectronics, in a SOT-23. 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 Cathode passive Cathode of the shunt reference. In regulation V_KA is held at V_REF (nominally 2.5 V) up to 24 V, sinking 1-100 mA (I_KMIN typ. 0.3 mA @25 °C). Off-state leakage I_OFF < 500 nA at V_K=24 V, V_REF=GND.
2 Reference input Reference (feedback) input. Internal error amplifier compares this pin against the internal 2.5 V bandgap; connect to the tap of the external R1/R2 divider between Cathode and Anode to program V_KA = V_REF·(1 + R1/R2). Input current I_REF typ. 0.5 µA (max 3 µA).
3 Anode passive Anode return terminal, tied to the low side of the shunt loop (typically ground). All V_KA and V_REF voltages are referenced to this pin.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • TS2431ILT
  • TS2431AILT
  • TS2431BILT

CAD (KiCad official)

  • Symbol: TS2431AILT
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ts2431ailt-etched.step / ts2431ailt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ts2431ailt.step / ts2431ailt.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (16 pp, sha256 dc06dd59a8b41517, 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