NCP4305DMTTWG

{
  "slug": "ncp4305dmttwg",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi AC-DC Controllers & Regulators, WDFN-8(2x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "ncp4305dmttwg",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "README.md",
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    "ncp4305dmttwg.kicad_mod",
    "ncp4305dmttwg.glb",
    "ncp4305dmttwg.step",
    "ncp4305dmttwg.lbr",
    "docs/hero.png",
    "docs/ncp4305dmttwg-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ncp4305dmttwg-hero.glb",
    "ncp4305dmttwg-hero.overlay.json",
    "ncp4305dmttwg-etched.glb"
  ],
  "component": {
    "mpn": "NCP4305DMTTWG",
    "manufacturer": "onsemi",
    "package": "WDFN-8(2x2)",
    "pin_count": 9,
    "category": "Power Supply Chip",
    "subcategory": "AC-DC Controllers & Regulators",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/ncp4305dmttw-d.pdf",
    "parts": {
      "symbol": "ncp4305dmttwg.kicad_sym",
      "footprint": "ncp4305dmttwg.kicad_mod",
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      "model_3d_step": "ncp4305dmttwg-etched.step",
      "model_3d_step_plain": "ncp4305dmttwg.step",
      "lbr": "ncp4305dmttwg.lbr"
    },
    "distributor_links": {
      "lcsc": "C603717",
      "digikey": "NCP4305DMTTWGOSTR-ND",
      "mouser": "863-NCP4305DMTTWG"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T00:58:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "NCP4305DMTTWGOSTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "863-NCP4305DMTTWG",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage pin, absolute maximum -0.3 to 37.0 V, with UVLO of 4.5 V for the D version."
      },
      {
        "number": "2",
        "name": "MIN_TOFF",
        "type": "passive",
        "description": "Adjusts the minimum off time period by connecting a resistor to ground."
      },
      {
        "number": "3",
        "name": "MIN_TON",
        "type": "passive",
        "description": "Adjusts the minimum on time period by connecting a resistor to ground."
      },
      {
        "number": "4",
        "name": "LLD",
        "type": "input",
        "description": "Modulates the driver clamp level and/or turns the driver off during light load conditions."
      },
      {
        "number": "5",
        "name": "TRIG/DIS",
        "type": "input",
        "description": "Ultrafast turn-off input (7.5 ns) to turn off the SR MOSFET in CCM applications, and it activates disable mode if pulled up for more than 100 µs."
      },
      {
        "number": "6",
        "name": "CS",
        "type": "input",
        "description": "Current sense pin that detects current through the SR MOSFET and/or its body diode, with a 0 mV basic turn-off threshold, a -4 to 200 V rating, and a series resistor that can lower the threshold."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the SR MOSFET driver, VCC decoupling capacitor, min on/off time resistors, LLD and trigger inputs, wired directly to the SR MOSFET source by Kelvin connection."
      },
      {
        "number": "8",
        "name": "DRV",
        "type": "output",
        "description": "Driver output for the SR MOSFET, with a 9.5 V clamp for the D version and a -0.3 to 17.0 V absolute maximum rating."
      },
      {
        "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-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table is shared by SOIC8, DFN8 and WDFN8. It does not give a WDFN8-specific pin map, so the ; Pin types are inferred from the functional descriptions. The datasheet text gives no explicit types."
        ],
        "pages_sent": 12,
        "cost_usd": 0.1378,
        "at": "2026-10-27T00:56:16"
      },
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/ncp4305dmttw-d.pdf",
        "pages": 54,
        "sha256": "a2a29f1aa19397a5",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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      "footprint": "viewers/footprint.html"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "8e795323239d4e256a38b6fe4ff77d2db5529e8d3fcb3c628d7c5f4c4004375f",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "extents_mm": [
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        "zmin_mm": 0.0,
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  }
}