NCP1031DR2G

{
  "slug": "ncp1031dr2g",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ncp1031dr2g",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ncp1031dr2g.kicad_sym",
    "ncp1031dr2g.kicad_mod",
    "ncp1031dr2g.glb",
    "ncp1031dr2g.step",
    "ncp1031dr2g.lbr",
    "docs/hero.png",
    "docs/ncp1031dr2g-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ncp1031dr2g-hero.glb",
    "ncp1031dr2g-hero.overlay.json",
    "ncp1031dr2g-etched.glb"
  ],
  "component": {
    "mpn": "NCP1031DR2G",
    "manufacturer": "onsemi",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588879860249350144",
    "parts": {
      "symbol": "ncp1031dr2g.kicad_sym",
      "footprint": "ncp1031dr2g.kicad_mod",
      "model_3d": "ncp1031dr2g-hero.glb",
      "model_3d_plain": "ncp1031dr2g-etched.glb",
      "model_3d_step": "ncp1031dr2g-etched.step",
      "model_3d_step_plain": "ncp1031dr2g.step",
      "lbr": "ncp1031dr2g.lbr"
    },
    "distributor_links": {
      "lcsc": "C139556",
      "digikey": "NCP1031DR2GOSTR-ND",
      "mouser": "863-NCP1031DR2G"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T10:08:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "NCP1031DR2GOSTR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "863-NCP1031DR2G",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the circuit."
      },
      {
        "number": "2",
        "name": "CT",
        "type": "passive",
        "description": "An external capacitor connected to this pin sets the oscillator frequency up to 1 MHz, and the frequency is reduced by a factor of 7 when a fault condition exists."
      },
      {
        "number": "3",
        "name": "VFB",
        "type": "input",
        "description": "The regulated output voltage is scaled down to 2.5 V by a resistor divider and compared to an internal 2.5 V reference."
      },
      {
        "number": "4",
        "name": "COMP",
        "type": "passive",
        "description": "Requires an external compensation network between COMP and VFB, and is effectively grounded when faults are present."
      },
      {
        "number": "5",
        "name": "OV",
        "type": "input",
        "description": "Line voltage is scaled down by an external resistor divider so that OV reaches 2.5 V at the maximum operating line voltage."
      },
      {
        "number": "6",
        "name": "UV",
        "type": "input",
        "description": "Line voltage is scaled down by an external resistor divider so that UV reaches 2.5 V at the minimum operating line voltage."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Connected to an external energy storage capacitor; the startup circuit charges it at turn-on and VCC should not exceed 16 V."
      },
      {
        "number": "8",
        "name": "VDRAIN",
        "type": "passive",
        "description": "Connects the power switch and startup circuits directly to one transformer winding; VDRAIN should not exceed 200 V."
      }
    ],
    "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: SOIC-8 pin numbers were taken from the Functional Pin Description table on page 2. The SO-8 top-view; The datasheet does not state an electrical pin type for CT, COMP or VDRAIN. The types assigned (pass; VDRAIN is the drain-side node of the internal high-voltage power switch. Its datasheet role is descr"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0449,
        "at": "2026-10-20T10:08:38"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588879860249350144",
        "pages": 21,
        "sha256": "9d1c98817b6525b0",
        "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": [
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        "file": "ncp1031dr2g.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": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ncp1031dr2g-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": "f62b4bd43e536bdab8c6efec7e07213fdd2376011132337f80b2d9f59dcd851b",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}