ASPL431AZA-R

@@ -0,0 +1,43 @@+# ASPL431AZA-R++**ASDsemi** · Voltage Reference · SOT-23++ASPL431AZA-R from ASDsemi, 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 / feedback input to the internal error amplifier. Compared against the internal 2.5 V bandgap reference to regulate the cathode voltage. Typical reference current 0.3 uA (0.6 uA max); absolute maximum input current 10 mA. |+| 2 | CATHODE | passive | Cathode (K) terminal of the shunt regulator. Sinks the regulated current to the anode when the REF voltage exceeds VREF (2.5 V). Recommended operating cathode voltage VREF to 36 V; sink current 0.2 mA to 100 mA; absolute maximum 40 V and +/-100..150 mA. |+| 3 | ANODE | passive | Anode (A) terminal of the shunt regulator; the return / ground-side terminal of the internal shunt path. Typically tied to circuit ground in a shunt-regulator configuration. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | ASDsemi |+| Package | SOT-23 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `ASPL431AZA-R`+- `ASPL431AZA-RN`++## CAD (KiCad official)++- Symbol: `ASPL431AZA-R`+- 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:** [ASDsemi datasheet](docs/aspl431aza-r-datasheet.pdf) (13 pp, sha256 `fac3b148060f40c4`, retrieved 2026-08-17, tier: lcsc)+- **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/aspl431aza-r-datasheet.pdf)

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