component
LM3671MFX-1.8
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+42@@ -0,0 +1,42 @@+# LM3671MFX-1.8++**Texas Instruments** · DC-DC Converters · SOT-23-5++LM3671MFX-1.8 from Texas Instruments, in a SOT-23-5. 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 | VIN | power_in | Power supply input. Connect to the input filter capacitor. |+| 2 | GND | power_in | Ground pin. |+| 3 | EN | input | Enable pin. The device is in shutdown mode when voltage to this pin is < 0.4 V and enabled when > 1 V. Do not leave this pin floating. |+| 4 | FB | input | Feedback analog input. Connect directly to the output filter capacitor for fixed voltage versions. For adjustable version external resistor dividers are required. |+| 5 | SW | output | Switching node connection to the internal PFET switch and NFET synchronous rectifier. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23-5 |+| Category | Power Management (PMIC) |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `LM3671MFX-1.8`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)+- 3D model files: `lm3671mfx-1-8-etched.step` / `lm3671mfx-1-8-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm3671mfx-1-8.step` / `lm3671mfx-1-8.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/lm3671) (37 pp, sha256 `527fd5351bf8a9da`, retrieved 2026-10-03, 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-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/lm3671mfx-1-8-datasheet.pdf)
page.jsonadded+141@@ -0,0 +1,141 @@+{+ "slug": "lm3671mfx-1-8",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lm3671mfx-1.8",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm3671mfx-1-8.kicad_sym",+ "lm3671mfx-1-8.kicad_mod",+ "lm3671mfx-1-8.glb",+ "lm3671mfx-1-8.step",+ "lm3671mfx-1-8.lbr",+ "docs/hero.png",+ "docs/lm3671mfx-1-8-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lm3671mfx-1-8-hero.glb",+ "lm3671mfx-1-8-hero.overlay.json"+ ],+ "component": {+ "mpn": "LM3671MFX-1.8",+ "manufacturer": "Texas Instruments",+ "package": "SOT-23-5",+ "pin_count": 5,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm3671",+ "parts": {+ "symbol": "lm3671mfx-1-8.kicad_sym",+ "footprint": "lm3671mfx-1-8.kicad_mod",+ "model_3d": "lm3671mfx-1-8-hero.glb",+ "model_3d_plain": "lm3671mfx-1-8.glb",+ "model_3d_step": "lm3671mfx-1-8-etched.step",+ "model_3d_step_plain": "lm3671mfx-1-8.step",+ "lbr": "lm3671mfx-1-8.lbr"+ },+ "distributor_links": {+ "lcsc": 477977,+ "digikey": "LM3671MFX-1.8-ND",+ "mouser": "926-LM3671MFX-18"+ },+ "distributor_check": {+ "checked_at": "2026-10-03T07:55:52Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "LM3671MFX-1.8-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": "926-LM3671MFX-18",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VIN",+ "type": "power_in",+ "description": "Power supply input. Connect to the input filter capacitor."+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Ground pin."+ },+ {+ "number": "3",+ "name": "EN",+ "type": "input",+ "description": "Enable pin. The device is in shutdown mode when voltage to this pin is < 0.4 V and enabled when > 1 V. Do not leave this pin floating."+ },+ {+ "number": "4",+ "name": "FB",+ "type": "input",+ "description": "Feedback analog input. Connect directly to the output filter capacitor for fixed voltage versions. For adjustable version external resistor dividers are required."+ },+ {+ "number": "5",+ "name": "SW",+ "type": "output",+ "description": "Switching node connection to the internal PFET switch and NFET synchronous rectifier."+ }+ ],+ "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": [],+ "pages_sent": 10,+ "cost_usd": 0.1008,+ "at": "2026-10-03T07:55:29"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm3671",+ "pages": 37,+ "sha256": "527fd5351bf8a9da",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 5,+ "described": 5,+ "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]"+ }+}