CJ7909

{
  "slug": "cj7909",
  "version": "0.1.0",
  "type": "component",
  "description": "Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "cj7909",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cj7909.kicad_sym",
    "cj7909.kicad_mod",
    "cj7909.glb",
    "cj7909.step",
    "cj7909.lbr",
    "docs/hero.png",
    "docs/cj7909-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cj7909-hero.glb",
    "cj7909-hero.overlay.json",
    "cj7909-etched.glb"
  ],
  "component": {
    "mpn": "CJ7909",
    "manufacturer": "Changjing",
    "package": "TO-220",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590235672759209984",
    "parts": {
      "symbol": "cj7909.kicad_sym",
      "footprint": "cj7909.kicad_mod",
      "model_3d": "cj7909-hero.glb",
      "model_3d_plain": "cj7909-etched.glb",
      "model_3d_step": "cj7909-etched.step",
      "model_3d_step_plain": "cj7909.step",
      "lbr": "cj7909.lbr"
    },
    "distributor_links": {
      "lcsc": "C2910307"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T23:47:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground reference pin for the negative regulator."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "power_in",
        "description": "Negative unregulated input; the absolute maximum input voltage Vi is -35 V."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated negative output with a nominal value of -9 V (typical Vo range -8.73 V to -9.27 V at TJ=25°C); maximum output current IOM is 1.5 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 datasheet gives the TO-220-3L pin assignment as a text label only (1 GND, 2. IN, 3.OUT). No pin ; The datasheet covers only the TO-220-3L package. The MPN CJ7909 is not stated to be offered in any o; The pin descriptions are based on the Absolute Maximum Ratings, Electrical Characteristics and Featu"
        ],
        "pages_sent": 3,
        "cost_usd": 0.0153,
        "at": "2026-10-20T23:44:26"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590235672759209984",
        "pages": 3,
        "sha256": "e259f45c7ec57a4b",
        "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": "cj7909.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.25,
          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "7cb065d935df5771f0ba6e48ddd180863a121af76483dad7f18e667a7b68204a",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cj7909-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.25,
          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "2a50c857c89a4a3b0ef1be03e8f3ed474b85db56b8acc0f7baad601f28c6c4ae",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}