CJ78M05

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  "type": "component",
  "slug": "cj78m05",
  "title": "CJ78M05",
  "brief": "Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.2",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "CJ78M05",
    "manufacturer": "Changjing",
    "package": "TO-252-2L",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "docs/cj78m05-datasheet.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated positive input voltage. Operates 7V-25V typical, 35V absolute max. A 0.33μF bypass capacitor (Ci) is recommended close to the pin for stability."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground reference for input and output. Also electrically connected to the tab/heatsink of the TO-252-2L package."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated +5V output (4.75V-5.25V over temp). Delivers up to 0.5A peak with short-circuit current limited to ~300mA. A 0.1μF output capacitor (Co) is recommended for transient response."
      }
    ],
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        "pages": 4,
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
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        "refuses_to_fabricate": true
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    },
    "pin1": {
      "pad": "1",
      "at": [
        -5.04,
        -2.28
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TO-252-2@sha256:18c28e5e147d5e9b",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-07",
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        "sha256": "542166b33da5aa5fdd0d13535fc59a56cae3725a48cd3d05a1c3d222ef2f2e92",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "rows": [
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "CJ78M05 (Changjing) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
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  "files": [
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    "cj78m05.lbr",
    "docs/hero.png",
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    "viewers/symbol.html",
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    "pads.json",
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  ],
  "updated_at": "2026-09-24T19:11:13.693Z",
  "description": "Jiangsu Changjing Electronics Technology Co   Ltd Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2L. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "org": "adom",
  "visibility": "public"
}