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Ray Set visibility: public 6a9988c 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cj78m15",
  "title": "CJ78M15",
  "brief": "Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "cj78m15",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CJ78M15",
    "manufacturer": "Changjing",
    "package": "TO-252-2(DPAK)",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586202414085525504",
    "parts": {
      "symbol": "cj78m15.kicad_sym",
      "footprint": "cj78m15.kicad_mod",
      "model_3d": "cj78m15-hero.glb",
      "model_3d_plain": "cj78m15-etched.glb",
      "model_3d_step": "cj78m15-etched.step",
      "model_3d_step_plain": "cj78m15.step",
      "lbr": "cj78m15.lbr"
    },
    "distributor_links": {
      "lcsc": "C24143"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T10:06:26Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated input supply to the regulator; the absolute maximum input voltage is 35 V and the operating junction temperature range is 0 to +125 ℃."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the regulator."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated 15 V output, 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": [
          "extractor flagged: The package hint says TO-252-2(DPAK), but the datasheet lists the package as TO-251/TO-252-2L with t; The datasheet text does not number the tab or heat-sink, so no tab pin is included. The pin descript"
        ],
        "pages_sent": 2,
        "cost_usd": 0.0229,
        "at": "2026-10-18T10:04:30"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586202414085525504",
        "pages": 2,
        "sha256": "72787b1816308393",
        "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": "cj78m15.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cj78m15-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
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "38abab83029a236041101e073b3fbcf039ac162a5e71e929b5fe90241107ba77",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Changjing",
      "Package": "TO-252-2(DPAK)",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "72787b18163083936d4143820dcc1f48499d4025aac920c1de3542df6fb049c5",
      "rows": [
        {
          "name": "Output Voltage (Vi=23V, Io=350mA, 25 C)",
          "symbol": "Vo",
          "kind": "electrical",
          "unit": "V",
          "min": 14.4,
          "typ": 15,
          "max": 15.6,
          "conditions": "Vi=23V,Io=350mA 25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage (17.5V<=Vi<=30V, Io=5mA~350mA, Po<=15W, 0-125 C)",
          "symbol": "Vo",
          "kind": "electrical",
          "unit": "V",
          "min": 14.25,
          "typ": 15,
          "max": 15.75,
          "conditions": "17.5≤Vi≤30V, Io=5mA~350mA, Po≤15W, 0-125℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (Io=5mA~500mA, 25 C)",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Io=5mA~500mA 25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (Io=5mA~200mA, 25 C)",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Io=5mA~200mA 25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (17.5V<=Vi<=30V, Io=200mA, 25 C)",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "17.5V≤Vi≤30V, Io=200mA 25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (20V<=Vi<=26V, Io=200mA, 25 C)",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "20V≤Vi≤26V, Io=200mA 25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current (Vi=23V, Io=350mA, 25 C)",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "Vi=23V,Io=350mA 25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current Change (17.5V<=Vi<=30V, Io=200mA, 0-125 C)",
          "symbol": "ΔIq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "17.5V≤Vi≤30V, Io=200mA 0-125℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current Change (Vi=23V, Io=5mA~350mA, 0-125 C)",
          "symbol": "ΔIq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "Vi=23V, Io=5mA~350mA 0-125℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output Noise Voltage",
          "symbol": "VN",
          "kind": "electrical",
          "unit": "μV",
          "min": null,
          "typ": null,
          "max": 90,
          "conditions": "10Hz≤f≤100KHz 25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 54,
          "typ": null,
          "max": null,
          "conditions": "18.5≤Vi≤28.5V,f=120Hz,Io=300mA 0-125℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "Vd",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage",
          "symbol": "Vi",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "TOPR",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": 0,
          "typ": null,
          "max": 125,
          "conditions": "Operating temperature range applies unless otherwise specified",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Continuous Total Dissipation",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1.25,
          "conditions": "Ta= 25 ℃",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cj78m15"
  ],
  "discovery_pitch": "CJ78M15 (Changjing) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "cj78m15.kicad_sym",
    "cj78m15.kicad_mod",
    "cj78m15.glb",
    "cj78m15.step",
    "cj78m15.lbr",
    "docs/hero.png",
    "docs/cj78m15-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cj78m15-hero.glb",
    "cj78m15-hero.overlay.json",
    "cj78m15-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}