component
TL1431CL3T
Public Made by Adomby adom
STMicroelectronics Voltage Reference, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTL1431CL3T
STMicroelectronics · Voltage Reference · SOT-23-3
TL1431CL3T from STMicroelectronics, 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 | Reference input for voltage setting via external resistor divider; reference input current 1.5 to 2.5 µA typical at Ik=10 mA and Vka=Vref. |
| 2 | Cathode | power_out | Output current sink terminal; continuous cathode current -100 to +150 mA absolute maximum, 1 to 100 mA operating range. |
| 3 | Anode | power_in | Supply voltage input terminal; cathode-to-anode voltage Vref (2.5 V minimum) to 36 V operating range, absolute maximum 37 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
TL1431CL3T - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
tl1431cl3t-etched.step/tl1431cl3t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl1431cl3t.step/tl1431cl3t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (27 pp, sha256
b6e98452fdf42eee, retrieved 2026-10-03, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).