LMV431AIM5X

@@ -0,0 +1,48 @@+# LMV431AIM5X++**Texas Instruments** · Voltage Reference · SOT-23-5++LMV431AIM5X from Texas Instruments, in a SOT-23-5. 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 | NC | unconnected | No internal connection. Leave floating on the PCB. |+| 2 | NC/Anode | unconnected | Internally connected to the Anode die pad. Should be either left floating or tied to the Anode pin (pin 5) on the board. |+| 3 | Cathode | passive | Cathode terminal of the shunt regulator. Sinks the regulated shunt current (0.1-15 mA operating, 30 mA abs max) to hold the programmed voltage (VREF up to 30 V abs max, 35 V absolute). Acts like the cathode of a programmable Zener. |+| 4 | Ref | input | Reference / feedback input to the internal error amplifier. Compared against the internal 1.24 V band-gap reference; a two-resistor divider from Cathode to Anode sets the regulated cathode voltage. Reference input current ≈ 0.15 µA typ (0.5 µA max). |+| 5 | Anode | passive | Anode terminal of the shunt regulator; returns cathode shunt current. Typically tied to circuit ground (or the low-side rail of the divider network). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `LMV431AIM5XIM5`+- `LMV431AIM5XIM5X`+- `LMV431AIM5XIM3`+- `LMV431AIM5XM3`+- `LMV431AIM5XZ`++## CAD (KiCad official)++- Symbol: `LMV431AIM5X`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/lmv431aim5x.pdf) (41 pp, sha256 `a0a41ad7f82b495a`, 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/lmv431aim5x-datasheet.pdf)

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