LM3676SD-3.3

{
  "slug": "lm3676sd-3-3",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, WSON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lm3676sd-3.3",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm3676sd-3-3.kicad_sym",
    "lm3676sd-3-3.kicad_mod",
    "lm3676sd-3-3.glb",
    "lm3676sd-3-3.step",
    "lm3676sd-3-3.lbr",
    "docs/hero.png",
    "docs/lm3676sd-3-3-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm3676sd-3-3-hero.glb",
    "lm3676sd-3-3-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM3676SD-3.3",
    "manufacturer": "Texas Instruments",
    "package": "WSON-8-EP(3x3)",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm3676",
    "parts": {
      "symbol": "lm3676sd-3-3.kicad_sym",
      "footprint": "lm3676sd-3-3.kicad_mod",
      "model_3d": "lm3676sd-3-3-hero.glb",
      "model_3d_plain": "lm3676sd-3-3.glb",
      "model_3d_step": "lm3676sd-3-3-etched.step",
      "model_3d_step_plain": "lm3676sd-3-3.step",
      "lbr": "lm3676sd-3-3.lbr"
    },
    "distributor_links": {
      "lcsc": "C2865794",
      "digikey": "LM3676SD-3.3TR-ND",
      "mouser": "926-LM3676SD-33"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T02:32:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LM3676SD-3.3TR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "926-LM3676SD-33",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground pin."
      },
      {
        "number": "2",
        "name": "SW",
        "type": "output",
        "description": "Switching node connection to the internal PFET switch and NFET synchronous rectifier."
      },
      {
        "number": "3",
        "name": "MODE",
        "type": "input",
        "description": "Mode control pin: >1.0V selects continuous PWM mode; <0.4V selects Auto (PFM-PWM) mode."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback analog input; connect directly to the output filter capacitor for fixed voltage versions."
      },
      {
        "number": "5",
        "name": "EN",
        "type": "input",
        "description": "Enable pin; device is in shutdown mode when voltage is <0.4V and enabled when >1.0V."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; leave pin floating and do not connect to other pins."
      },
      {
        "number": "7",
        "name": "SGND",
        "type": "power_in",
        "description": "Signal ground pin."
      },
      {
        "number": "8",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input; connect to the input filter capacitor."
      },
      {
        "number": "9",
        "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-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 9 added from the footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.071,
        "at": "2026-10-07T02:31:54"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm3676",
        "pages": 27,
        "sha256": "32b5d5fe31ca1bd6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm3676sd-3-3.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          2.98,
          0.82
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "cbee016fb8ee69c44b13d8818fcf65dcf240f5fdca70b22700521eb617c5311a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm3676sd-3-3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          2.98,
          0.82
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a769aeca3fcc085b9d2156f19bf6ff72806e1e93c44b677d237f5d9854599a61",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}