L6981C50DR

{
  "slug": "l6981c50dr",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics DC-DC Converters, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "l6981c50dr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "l6981c50dr.kicad_sym",
    "l6981c50dr.kicad_mod",
    "l6981c50dr.glb",
    "l6981c50dr.step",
    "l6981c50dr.lbr",
    "docs/hero.png",
    "docs/l6981c50dr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "l6981c50dr-hero.glb",
    "l6981c50dr-hero.overlay.json",
    "l6981c50dr-etched.glb"
  ],
  "component": {
    "mpn": "L6981C50DR",
    "manufacturer": "STMicroelectronics",
    "package": "SO-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.st.com/resource/en/datasheet/l6981c50dr.pdf",
    "parts": {
      "symbol": "l6981c50dr.kicad_sym",
      "footprint": "l6981c50dr.kicad_mod",
      "model_3d": "l6981c50dr-hero.glb",
      "model_3d_plain": "l6981c50dr-etched.glb",
      "model_3d_step": "l6981c50dr-etched.step",
      "model_3d_step_plain": "l6981c50dr.step",
      "lbr": "l6981c50dr.lbr"
    },
    "distributor_links": {
      "lcsc": "C5268093",
      "digikey": "497-L6981C50DRTR-ND",
      "mouser": "511-L6981C50DR"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T21:38:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-L6981C50DRTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-L6981C50DR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "output",
        "description": "Switching node of the synchronous step-down converter."
      },
      {
        "number": "2",
        "name": "BOOT",
        "type": "passive",
        "description": "Connect an external 100 nF (typ.) capacitor between BOOT and SW to refresh the gate charge that drives the internal NMOS."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_out",
        "description": "Supplies the embedded analog circuitry; connect a ceramic capacitor (≥ 1 µF) to filter the internal voltage reference."
      },
      {
        "number": "4",
        "name": "VOUT/FB",
        "type": "input",
        "description": "In fixed output voltage versions such as the 5 V C50 part, VOUT senses the output voltage through an internal voltage divider."
      },
      {
        "number": "5",
        "name": "EN/CLKIN",
        "type": "input",
        "description": "Enable pin with internal voltage divider; pull down to disable and pull up to enable the device, and in LNM versions it also accepts an external clock for synchronization."
      },
      {
        "number": "6",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "7",
        "name": "VIN",
        "type": "power_in",
        "description": "DC input voltage of the regulator."
      },
      {
        "number": "8",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground."
      }
    ],
    "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: Pin 4 is printed as VOUT/FB. For the C50 fixed 5 V version (L6981C50DR), the pin operates as VOUT, t"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0109,
        "at": "2026-11-05T21:38:38"
      },
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/l6981c50dr.pdf",
        "pages": 52,
        "sha256": "ffbb8bf9e87b0957",
        "source_tier": "mfr"
      },
      "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": "l6981c50dr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "l6981c50dr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ec38f0d1dee90daa586542418112f834894e3bd509550446a8bb1cdd21b0c8f4",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}