TS2431BILT

@@ -0,0 +1,44 @@+# TS2431BILT++**STMicroelectronics** · Voltage Reference · SOT-23-3L++TS2431BILT from STMicroelectronics, in a SOT-23-3L. 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 (K) of the shunt regulator. Sinks 1 to 100 mA operating current; Vka programmable from Vref (2.5 V) to 24 V via external R1/R2 divider. Absolute max Vka = 25 V; off-state cathode current 10 nA typ at Vka = 24 V. |+| 2 | Reference | input | Reference input (REF). High-impedance feedback input compared internally to the 2.5 V bandgap; Iref typically 0.5 µA. Tied to the R1/R2 divider from cathode to anode to set Vka = Vref·(1 + R1/R2). Input current range 0.05 to 10 mA (abs max). |+| 3 | Anode | passive | Anode (A) of the shunt regulator. Connects to the low side of the reference (typically GND in the feedback loop). Reverse breakdown current rating -100 to +150 mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOT-23-3L |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++Same part, different packaging or reel option.++- `TS2431BILT`++## CAD (KiCad official)++- Symbol: `TS2431BILT`+- Footprint: `Package_TO_SOT_SMD:SOT-23-3`+- 3D model: SOT-23-3L (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/ts2431bilt.pdf) (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](docs/ts2431bilt-datasheet.pdf)

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