TLV431ASN1T1G

@@ -0,0 +1,50 @@+# TLV431ASN1T1G++**onsemi** · Voltage Reference · SOT-23++TLV431ASN1T1G 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 | Reference | input | Reference (R) input. High-impedance sense input to the internal 1.24 V bandgap reference amplifier (Iref typ 0.15 µA, max 0.3 µA). The device sinks cathode current when V(Reference) exceeds Vref (1.240 V typ) to regulate the KA voltage. |+| 2 | Cathode | passive | Cathode (K). Current-sink terminal that regulates the cathode-to-anode voltage. Rated VKA up to 18 V max, cathode current -20 to +25 mA (typ operating 0.1 mA to 20 mA). Dynamic impedance |ZKA| ~0.25 Ω. |+| 3 | Anode | passive | Anode (A). Current-return terminal, typically tied to circuit ground/common. All cathode and reference currents return through this pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOT-23 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `TLV431ASN1T1GSN1T1G`+- `TLV431ASN1T1GSN1T1`+- `TLV431ASN1T1GSN1`+- `TLV431ASN1T1GSN`+- `TLV431ASN1T1GLP`+- `TLV431ASN1T1GLPRA`+- `TLV431ASN1T1GLPRE`+- `TLV431ASN1T1GLPRM`+- `TLV431ASN1T1GLPRP`++## CAD (KiCad official)++- Symbol: `TLV431ASN1T1G`+- 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/tlv431asn1t1-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/tlv431asn1t1g-datasheet.pdf)

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