LM4050AIM3X-2.5

@@ -0,0 +1,56 @@+# LM4050AIM3X-2.5++**Texas Instruments** · Voltage Reference · SOT-23-3++LM4050AIM3X-2.5 from Texas Instruments, in a SOT-23-3. 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 | K | passive | Cathode (negative marking on top view; this is the shunt-regulator cathode that sinks the shunt current IQ and sets the regulated reverse breakdown voltage VR = 2.5V). Connect through series resistor RS to Vs; the regulated Vout is taken here. |+| 2 | A | passive | Anode (common pin, typically tied to ground). Return terminal of the shunt reference; carries IQ + IL back to the supply return. |+| 3 | NC | unconnected | No internal connection - this pin is the die-attach pad and forms a parasitic Schottky diode to pin 2 (anode). Must be left floating or tied to pin 2 (anode). TI recommends tying to anode in high-EMI or high-frequency switching-noise environments. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23-3 |+| Category | Power Management (PMIC) |+| Pins | 3 |++## Ordering variants++Same part, different packaging or reel option.++- `LM4050AIM3X-2.5`+- `LM4050AIM3-2.5`+- `LM4050BIM3X-2.5`+- `LM4050BIM3-2.5`+- `LM4050CIM3X-2.5`+- `LM4050CIM3-2.5`+- `LM4050AEM3X-2.5`+- `LM4050AEM3-2.5`+- `LM4050BEM3X-2.5`+- `LM4050BEM3-2.5`+- `LM4050CEM3X-2.5`+- `LM4050CEM3-2.5`++## CAD (KiCad official)++- Symbol: `LM4050AIM3X-2.5`+- Footprint: `Package_TO_SOT_SMD:SOT-23-3`+- 3D model: SOT-23-3 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm4050-n) (None pp, sha256 `a56eb11c173b31e8`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/lm4050aim3x-2-5-datasheet.pdf)

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