main
Ray Set visibility: public 7324390 47m ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "78m09-ms",
  "title": "78M09-MS",
  "brief": "MSKSEMI Linear Voltage Regulators (LDO), TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power supply chip",
    "78m09-ms",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
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    "manufacturer": "MSKSEMI",
    "package": "TO-252",
    "pin_count": 3,
    "category": "Power Supply Chip",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3db4b9d2938c229275c35071c4539987.pdf",
    "parts": {
      "symbol": "78m09-ms.kicad_sym",
      "footprint": "78m09-ms.kicad_mod",
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      "model_3d_step": "78m09-ms-etched.step",
      "model_3d_step_plain": "78m09-ms.step",
      "lbr": "78m09-ms.lbr"
    },
    "distributor_links": {
      "lcsc": "C5174618"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T05:18:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated input voltage pin, with absolute maximum input voltage of 25 V and specified regulation for Vi between 11.5 V and 24 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the regulator."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated 9 V output pin, rated for a maximum output current IOM of 0.5 A."
      }
    ],
    "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": [],
        "pages_sent": 5,
        "cost_usd": 0.0203,
        "at": "2026-11-05T05:18:44"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/3db4b9d2938c229275c35071c4539987.pdf",
        "pages": 5,
        "sha256": "77f334a90784c22e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "78m09-ms.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          6.5,
          2.32
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "78m09-ms-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          6.5,
          2.32
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "cd497d1074cdff8bcd5c1d6fccf9224d4c1578d74d5c8364f5e07ab97951ae21",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "TO-252",
      "source_page": 4,
      "D": {
        "nom_mm": 6.6,
        "range_mm": [
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          6.7
        ]
      },
      "E1": {
        "nom_mm": 6.1,
        "range_mm": [
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          6.2
        ]
      },
      "E": {
        "nom_mm": 10.012,
        "range_mm": [
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          10.312
        ]
      },
      "e": {
        "nom_mm": 2.286,
        "range_mm": [
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          2.386
        ]
      },
      "A": {
        "nom_mm": 2.3,
        "range_mm": [
          2.2,
          2.4
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "78m09-ms.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "MSKSEMI",
      "Package": "TO-252",
      "Category": "Power Supply Chip",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "77f334a90784c22ec478b12cf23657a829f6ad7d354aa7ae049059c785869b0a",
      "rows": [
        {
          "name": "Output Voltage (25℃)",
          "symbol": "Vo",
          "kind": "electrical",
          "unit": "V",
          "min": 8.65,
          "typ": 9,
          "max": 9.35,
          "conditions": "11.5≤Vi≤24V, Io=5mA-350mA, Po≤15W",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage (0-125℃)",
          "symbol": "Vo",
          "kind": "electrical",
          "unit": "V",
          "min": 8.55,
          "typ": 9,
          "max": 9.45,
          "conditions": "11.5≤Vi≤24V, Io=5mA-350mA, Po≤15W",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage",
          "symbol": "Vi",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "TOPR",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -20,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Continuous Total Dissipation",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1.25,
          "conditions": "Ta = 25 ℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (Io=5mA-500mA)",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 20,
          "max": 180,
          "conditions": "Io=5mA-500mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (Io=5mA-200mA)",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 10,
          "max": 90,
          "conditions": "Io=5mA-200mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (11.5V≤Vi≤25V)",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 6,
          "max": 100,
          "conditions": "11.5V≤Vi≤25V, Io=200mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (12V≤Vi≤25V)",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2,
          "max": 50,
          "conditions": "12V≤Vi≤25V, Io=200mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4.6,
          "max": 6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current Change (line)",
          "symbol": "ΔIq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "11.5V≤Vi≤25V, Io=200mA, 0-125℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current Change (load)",
          "symbol": "ΔIq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "5mA≤IO≤350mA, 0-125℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 56,
          "typ": 80,
          "max": null,
          "conditions": "13≤Vi≤23V, f=120Hz, Io=300mA, 0-125℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Noise Voltage",
          "symbol": "VN",
          "kind": "electrical",
          "unit": "μV",
          "min": null,
          "typ": 60,
          "max": null,
          "conditions": "10Hz≤f≤100KHz, 25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "Vd",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "Io=350mA, 25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Short Circuit Current",
          "symbol": "Isc",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "Vi=16V, 25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak Current",
          "symbol": "Ipk",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "25℃",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "78m09-ms"
  ],
  "discovery_pitch": "78M09-MS (MSKSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
  },
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    "README.md",
    "78m09-ms.kicad_sym",
    "78m09-ms.kicad_mod",
    "78m09-ms.glb",
    "78m09-ms.step",
    "78m09-ms.lbr",
    "docs/hero.png",
    "docs/78m09-ms-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "78m09-ms-hero.glb",
    "78m09-ms-hero.overlay.json",
    "78m09-ms-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}