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LM4431M3X-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+39@@ -0,0 +1,39 @@+# LM4431M3X-2.5++**Texas Instruments** · Voltage Reference · SOT-23++LM4431M3X-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 | + | output | Reference output providing fixed 2.50V reverse breakdown voltage with operating current range of 100 μA to 15 mA |+| 2 | − | power_in | Negative reference and ground return connection |+| 3 | Die | unconnected | Die attach interface contact with parasitic Schottky diode to pin 2 that must be left floating or connected to pin 2 |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23 |+| Category | Power Management (PMIC) |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `LM4431M3X-2.5`+- Footprint: `Package_TO_SOT_SMD:SOT-23`+- 3D model: SOT-23 (KiCad packages3D, STEP)+- 3D model files: `lm4431m3x-2-5-etched.step` / `lm4431m3x-2-5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4431m3x-2-5.step` / `lm4431m3x-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/lm4431) (16 pp, sha256 `aae3a4af89708708`, retrieved 2026-09-30, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/lm4431m3x-2-5-datasheet.pdf)
page.jsonadded+129@@ -0,0 +1,129 @@+{+ "slug": "lm4431m3x-2-5",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lm4431m3x-2.5",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm4431m3x-2-5.kicad_sym",+ "lm4431m3x-2-5.kicad_mod",+ "lm4431m3x-2-5.glb",+ "lm4431m3x-2-5.step",+ "lm4431m3x-2-5.lbr",+ "docs/hero.png",+ "docs/lm4431m3x-2-5-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM4431M3X-2.5",+ "manufacturer": "Texas Instruments",+ "package": "SOT-23",+ "pin_count": 3,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Reference",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm4431",+ "parts": {+ "symbol": "lm4431m3x-2-5.kicad_sym",+ "footprint": "lm4431m3x-2-5.kicad_mod",+ "model_3d": "lm4431m3x-2-5-etched.glb",+ "model_3d_plain": "lm4431m3x-2-5.glb",+ "model_3d_step": "lm4431m3x-2-5-etched.step",+ "model_3d_step_plain": "lm4431m3x-2-5.step",+ "lbr": "lm4431m3x-2-5.lbr"+ },+ "distributor_links": {+ "lcsc": "C2156703",+ "digikey": "LM4431M3X-2.5TR-ND",+ "mouser": "926-LM4431M3X-25"+ },+ "distributor_check": {+ "checked_at": "2026-09-30T00:20:45Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "LM4431M3X-2.5TR-ND",+ "status": "found",+ "lifecycle": "Discontinued at DigiKey"+ },+ "mouser": {+ "pn": "926-LM4431M3X-25",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "+",+ "type": "output",+ "description": "Reference output providing fixed 2.50V reverse breakdown voltage with operating current range of 100 μA to 15 mA"+ },+ {+ "number": "2",+ "name": "−",+ "type": "power_in",+ "description": "Negative reference and ground return connection"+ },+ {+ "number": "3",+ "name": "Die",+ "type": "unconnected",+ "description": "Die attach interface contact with parasitic Schottky diode to pin 2 that must be left floating or connected to pin 2"+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "1/3 pins cited to the wrong page (name found elsewhere): ['3:Die@p1']"+ ],+ "pages_sent": 16,+ "cost_usd": 0.1098,+ "at": "2026-09-30T00:20:31"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm4431",+ "pages": 16,+ "sha256": "aae3a4af89708708",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 3,+ "described": 3,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}