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Initial commit: component/lm2671m-adj

Ray ·b3ec96e783 ·4d ago
2 files changed +201
README.mdadded+44
@@ -0,0 +1,44 @@+# LM2671M-ADJ++**Texas Instruments** · DC-DC Converters · SOIC-8++LM2671M-ADJ from Texas Instruments, in a SOIC-8. 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 | CB | input | Bootstrap capacitor connection for high-side driver; connect a high-quality 100-nF capacitor from CB to VSW pin. |+| 2 | SS | input | Soft-start input pin; connect a capacitor from this pin to GND to control the output voltage ramp, or leave floating if not desired. |+| 3 | SYNC | input | Synchronization input pin allowing control of switching clock frequency at typically 260 kHz internal oscillator frequency when left open-circuited. |+| 4 | FB | input | Feedback sense input pin; connect to the midpoint of feedback divider to set VOUT for ADJ version or directly to output capacitor for fixed versions. |+| 5 | ON/OFF | input | Enable input to the voltage regulator where High = ON and low = OFF; pull this pin high or float to enable the regulator. |+| 6 | GND | power_in | Power ground pin; connect to system ground and ground pins of CIN and COUT; path to CIN must be as short as possible. |+| 7 | VIN | power_in | Supply input pin connected to collector of high-side FET; connect to power supply with input bypass capacitors CIN and path as short as possible. |+| 8 | VSW | output | Source pin of the internal high-side FET and switching node; attach this pin to an inductor and the cathode of the external diode. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `LM2671M-ADJ`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `lm2671m-adj-etched.step` / `lm2671m-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2671m-adj.step` / `lm2671m-adj.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/lm2671) (40 pp, sha256 `3002d970b17265d0`, retrieved 2026-10-01, 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/lm2671m-adj-datasheet.pdf)
page.jsonadded+157
@@ -0,0 +1,157 @@+{+  "slug": "lm2671m-adj",+  "version": "0.1.0",+  "type": "component",+  "description": "Texas Instruments DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "power management (pmic)",+    "lm2671m-adj",+    "factory-2.0.0",+    "extractor-text"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "lm2671m-adj.kicad_sym",+    "lm2671m-adj.kicad_mod",+    "lm2671m-adj.glb",+    "lm2671m-adj.step",+    "lm2671m-adj.lbr",+    "docs/hero.png",+    "docs/lm2671m-adj-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "component": {+    "mpn": "LM2671M-ADJ",+    "manufacturer": "Texas Instruments",+    "package": "SOIC-8",+    "pin_count": 8,+    "category": "Power Management (PMIC)",+    "subcategory": "DC-DC Converters",+    "datasheet": "https://www.ti.com/cn/lit/gpn/lm2671",+    "parts": {+      "symbol": "lm2671m-adj.kicad_sym",+      "footprint": "lm2671m-adj.kicad_mod",+      "model_3d": "lm2671m-adj-etched.glb",+      "model_3d_plain": "lm2671m-adj.glb",+      "model_3d_step": "lm2671m-adj-etched.step",+      "model_3d_step_plain": "lm2671m-adj.step",+      "lbr": "lm2671m-adj.lbr"+    },+    "distributor_links": {+      "lcsc": "C1355316",+      "digikey": "296-35129-5-ND",+      "mouser": "926-LM2671M-ADJ"+    },+    "distributor_check": {+      "checked_at": "2026-10-01T04:04:31Z",+      "source": "Component Ocean /api/assign-pns",+      "digikey": {+        "pn": "296-35129-5-ND",+        "status": "found",+        "lifecycle": "Obsolete"+      },+      "mouser": {+        "pn": "926-LM2671M-ADJ",+        "status": "found",+        "lifecycle": "Obsolete"+      }+    },+    "pins": [+      {+        "number": "1",+        "name": "CB",+        "type": "input",+        "description": "Bootstrap capacitor connection for high-side driver; connect a high-quality 100-nF capacitor from CB to VSW pin."+      },+      {+        "number": "2",+        "name": "SS",+        "type": "input",+        "description": "Soft-start input pin; connect a capacitor from this pin to GND to control the output voltage ramp, or leave floating if not desired."+      },+      {+        "number": "3",+        "name": "SYNC",+        "type": "input",+        "description": "Synchronization input pin allowing control of switching clock frequency at typically 260 kHz internal oscillator frequency when left open-circuited."+      },+      {+        "number": "4",+        "name": "FB",+        "type": "input",+        "description": "Feedback sense input pin; connect to the midpoint of feedback divider to set VOUT for ADJ version or directly to output capacitor for fixed versions."+      },+      {+        "number": "5",+        "name": "ON/OFF",+        "type": "input",+        "description": "Enable input to the voltage regulator where High = ON and low = OFF; pull this pin high or float to enable the regulator."+      },+      {+        "number": "6",+        "name": "GND",+        "type": "power_in",+        "description": "Power ground pin; connect to system ground and ground pins of CIN and COUT; path to CIN must be as short as possible."+      },+      {+        "number": "7",+        "name": "VIN",+        "type": "power_in",+        "description": "Supply input pin connected to collector of high-side FET; connect to power supply with input bypass capacitors CIN and path as short as possible."+      },+      {+        "number": "8",+        "name": "VSW",+        "type": "output",+        "description": "Source pin of the internal high-side FET and switching node; attach this pin to an inductor and the cathode of the external diode."+      }+    ],+    "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": 9,+        "cost_usd": 0.0838,+        "at": "2026-10-01T04:04:15"+      },+      "datasheet": {+        "url": "https://www.ti.com/cn/lit/gpn/lm2671",+        "pages": 40,+        "sha256": "3002d970b17265d0",+        "source_tier": "lcsc"+      },+      "cad": "KiCad official (CC-BY-SA 4.0)",+      "pins": {+        "total": 8,+        "described": 8,+        "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]"+  }+}\ No newline at end of file