TLV431BSN1T1G

@@ -0,0 +1,50 @@+# TLV431BSN1T1G++**onsemi** · Voltage Reference · SOT-23++TLV431BSN1T1G from onsemi, 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 | REF | input | Reference input (R). High-impedance sense input to the internal error amplifier, compared against the internal 1.240 V (typ) bandgap reference. Reference input current I_ref = 0.15 µA typ (0.3 µA max) with R1 = 10 kΩ. Continuous input current range: −0.05 to 10 mA. |+| 2 | A | power_in | Anode (A). Common/return terminal of the shunt regulator; the internal reference and error amplifier are ground-referenced to this pin. Cathode-to-anode voltage V_KA absolute max 18 V. |+| 3 | K | power_in | Cathode (K). Shunt/regulated terminal; sinks current from an external pull-up resistor to maintain V_KA = V_ref × (1 + R1/R2). Recommended cathode current 0.1-20 mA; absolute max cathode current −20 to 25 mA; off-state leakage 0.01 µA typ at V_KA = 6 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOT-23 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `TLV431BSN1T1GSN1T1G`+- `TLV431BSN1T1GSN1T1`+- `TLV431BSN1T1GSNT1G`+- `TLV431BSN1T1GSN`+- `TLV431BSN1T1GLP`+- `TLV431BSN1T1GLPRA`+- `TLV431BSN1T1GLPRE`+- `TLV431BSN1T1GLPRM`+- `TLV431BSN1T1GLPRP`++## CAD (KiCad official)++- Symbol: `TLV431BSN1T1G`+- Footprint: `Package_TO_SOT_SMD:SOT-23`+- 3D model: SOT-23 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/tlv431bsn1t1-d.pdf) (20 pp, sha256 `63404349c3607665`, 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/tlv431bsn1t1g-datasheet.pdf)

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