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LM4050BEM3-2.5
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Texas Instruments Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+40@@ -0,0 +1,40 @@+# LM4050BEM3-2.5++**Texas Instruments** · Voltage Reference · SOT-23++LM4050BEM3-2.5 from Texas Instruments, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | Cathode | bidirectional | Cathode (datasheet name: 负极) carries the shunt current and sets the input voltage; the device is rated for a maximum reverse current of 20 mA, and the cathode current must stay within the minimum and maximum operating current limits. |+| 2 | Anode | output | Anode (datasheet name: 正极) is the general-purpose reference pin, normally connected to ground; the parasitic Schottky diode between pin 2 and pin 3 requires pin 3 to float or be tied to this pin. |+| 3 | NC | unconnected | No internal connection, but this pin must be left floating or connected to pin 2 (anode) because of a parasitic Schottky diode; TI recommends connecting it to the anode in applications with high EMI or significant high-frequency switching noise. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23 |+| Category | Power Management (PMIC) |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `LM4050BEM3-2.5`+- Footprint: `Package_TO_SOT_SMD:SOT-23`+- 3D model: SOT-23 (KiCad packages3D, STEP)+- 3D model files: `lm4050bem3-2-5-etched.step` / `lm4050bem3-2-5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4050bem3-2-5.step` / `lm4050bem3-2-5.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm4050-n) (47 pp, sha256 `02a99aa1f022863b`, retrieved 2026-10-08, 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:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/lm4050bem3-2-5-datasheet.pdf)
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