CJ78L05

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  "type": "component",
  "slug": "cj78l05",
  "title": "CJ78L05",
  "brief": "Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.1",
  "license": "CC-BY-SA-4.0",
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    "pmic",
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  "component": {
    "mpn": "CJ78L05",
    "manufacturer": "Changjing",
    "package": "SOT-89-3L",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "docs/cj78l05-datasheet.pdf",
    "parts": {
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated +5 V output. Nominal 5.0 V (4.75 V to 5.25 V over full load/line). Recommend 0.1 uF ceramic bypass capacitor close to the pin for transient response."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground return for input and output. Also acts as the package heatsink tab (SOT-89 large center pad) for thermal dissipation."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated DC input. Recommended operating range 7 V to 20 V; absolute maximum 30 V. Requires 0.33 uF bypass capacitor close to the pin when the regulator is far from the input filter."
      }
    ],
    "provenance": {
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        "pages": 4,
        "sha256": "7bd7279ca9a27801",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.95,
        -1.5
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-89-3@sha256:0b8db9f4a8f2547a",
      "mark": "drawn"
    },
    "models_3d": [
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        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-07",
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        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
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        "sha256": "1f3e1519ea84be56545f23faaaa6ff27a48ae0b711729d0bc89ec9457f525adb",
        "checked": "2026-10-07",
        "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": 30,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 1,
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      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "CJ78L05 (Changjing) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "cj78l05.kicad_sym",
    "cj78l05.kicad_mod",
    "cj78l05.glb",
    "cj78l05.step",
    "cj78l05-etched.step",
    "cj78l05.lbr",
    "docs/hero.png",
    "docs/cj78l05-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pads.json",
    "cj78l05-etched.glb"
  ],
  "updated_at": "2026-09-24T19:10:17.734Z",
  "description": "Jiangsu Changjing Electronics Technology Co   Ltd Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3L. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "visibility": "public",
  "org": "adom"
}