LM2676SX-12

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm2676sx-12",
  "title": "LM2676SX-12",
  "brief": "Texas Instruments DC-DC Converters, TO-263-7. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "lm2676sx-12",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM2676SX-12",
    "manufacturer": "Texas Instruments",
    "package": "TO-263-7",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm2676",
    "parts": {
      "symbol": "lm2676sx-12.kicad_sym",
      "footprint": "lm2676sx-12.kicad_mod",
      "model_3d": "lm2676sx-12-hero.glb",
      "model_3d_plain": "lm2676sx-12.glb",
      "model_3d_step": "lm2676sx-12-etched.step",
      "model_3d_step_plain": "lm2676sx-12.step",
      "lbr": "lm2676sx-12.lbr"
    },
    "distributor_links": {
      "lcsc": "C2872299",
      "digikey": "LM2676SX-12TR-ND",
      "mouser": "926-LM2676SX-12"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T02:18:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LM2676SX-12TR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "926-LM2676SX-12",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Switch_output",
        "type": "output",
        "description": "Source of the internal high-side FET and the switching node, connected to the inductor and the external diode cathode, with the negative swing kept above -1 V per the catch-diode guidance."
      },
      {
        "number": "2",
        "name": "Input",
        "type": "input",
        "description": "Power input to the high-side FET collector and internal circuits, which must operate within 8 V to 40 V and be bypassed close to this pin with CIN."
      },
      {
        "number": "3",
        "name": "CB",
        "type": "input",
        "description": "Bootstrap capacitor connection for the high-side driver, with the capacitor connected between CB and Switch_output (the pin table specifies 100 nF, while section 6.3.3 recommends 0.01 µF)."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground connected to system ground, with the path to CIN and COUT grounds kept as short as possible."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave this pin unconnected."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Feedback sense input that must be connected directly to the regulated output for the fixed-output versions (including 12 V) and kept free of inductor flux coupling."
      },
      {
        "number": "7",
        "name": "ON/OFF",
        "type": "input",
        "description": "Enable input where high or floating enables the regulator and pulling below 0.8 V fully shuts it down, with the on-state voltage not to exceed the 6 V absolute maximum when electrically driven."
      },
      {
        "number": "8",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The DAP/tab is not a numbered pin on the TO-263-7. Table 4-1 states that all DAP, tab and pad connec; Bootstrap capacitor value is inconsistent in the datasheet. Table 4-1 says 100 nF between CB and VSW; The datasheet text supplied is a Chinese translation of the TI English datasheet (SNVS031). Pin desc",
          "exposed pad 8 added from the footprint"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0976,
        "at": "2026-10-08T02:18:45"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm2676",
        "pages": 40,
        "sha256": "e66be2b2a64d67e2",
        "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"
    },
    "models_3d": [
      {
        "file": "lm2676sx-12.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15,
          10,
          4.42
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "34b8121b216e7b6490402befe573a69b06919acafd33d6e8da88bd238574da52",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm2676sx-12-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15,
          10,
          4.42
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "31a86d1c9c64696526b5dd6d71cbc20774964d526500bf2becdfd13821779824",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TO-263-7",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm2676sx-12"
  ],
  "discovery_pitch": "LM2676SX-12 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm2676sx-12.kicad_sym",
    "lm2676sx-12.kicad_mod",
    "lm2676sx-12.glb",
    "lm2676sx-12.step",
    "lm2676sx-12.lbr",
    "docs/hero.png",
    "docs/lm2676sx-12-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm2676sx-12-hero.glb",
    "lm2676sx-12-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}