main
Ray Set visibility: public 7f048d7 4d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cj78l15-ta",
  "title": "CJ78L15-TA",
  "brief": "Changjing Linear Voltage Regulators (LDO), TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "mpn": "CJ78L15-TA",
    "manufacturer": "Changjing",
    "package": "TO-92-3",
    "pin_count": 3,
    "category": "Power Supply Chip",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/e4ef61ee8bb6d32f714eee3f9ffc4481.pdf",
    "parts": {
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      "footprint": "cj78l15-ta.kicad_mod",
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      "model_3d_step_plain": "cj78l15-ta.step",
      "lbr": "cj78l15-ta.lbr"
    },
    "distributor_links": {
      "lcsc": "C2910398"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T20:34:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated 15 V output (14.55-15.45 V at Vi=23V, Io=40mA, Tj=25°C), maximum output current 0.1 A; a 0.1µF bypass capacitor is recommended close to the regulator."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; quiescent current is typically 4.6 mA with a 6.5 mA maximum."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated input voltage pin, specified for 17.5 V to 30 V operation; a 0.33µF bypass capacitor is recommended close to the regulator."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Input voltage absolute maximum value and thermal resistance values are garbled/missing in the extrac; Quiescent current 4.6 / 6.5 mA: the column assignment (typ vs max) is inferred from the text, which "
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        "pages_sent": 6,
        "cost_usd": 0.035,
        "at": "2026-10-22T20:34:05"
      },
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        "pages": 6,
        "sha256": "be8bd1745f092cbb",
        "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
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Changjing",
      "Package": "TO-92-3",
      "Category": "Power Supply Chip",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "be8bd1745f092cbbc26e5cc4ba36aaa8f6359636fc7d63e21dc5db8702b9f1de",
      "rows": [
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          "name": "Output voltage",
          "symbol": "Vo",
          "kind": "electrical",
          "unit": "V",
          "min": 14.55,
          "typ": 15,
          "max": 15.45,
          "conditions": "TJ=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage",
          "symbol": "Vo",
          "kind": "electrical",
          "unit": "V",
          "min": 14.25,
          "typ": 15,
          "max": 15.75,
          "conditions": "17.5V≤Vi≤30V, Io=1mA-40mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 25,
          "max": 150,
          "conditions": "Io=1mA-100mA, Vi=23V, TJ=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 15,
          "max": 75,
          "conditions": "Io=1mA-40mA, Vi=23V, TJ=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 65,
          "max": 300,
          "conditions": "17.5V≤Vi≤30V, Io=40mA, TJ=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "ΔVo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 58,
          "max": 250,
          "conditions": "19V≤Vi≤30V, Io=40mA, TJ=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4.6,
          "max": 6.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current change",
          "symbol": "ΔIq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "19V≤Vi≤30V, Io=40mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current change",
          "symbol": "ΔIq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "1mA≤IO≤40mA, Vi=23V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 34,
          "typ": 39,
          "max": null,
          "conditions": "18.5V≤Vi≤28.5V, f=120Hz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "Vd",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.7,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output noise voltage",
          "symbol": "VN",
          "kind": "electrical",
          "unit": "",
          "min": null,
          "typ": 82,
          "max": null,
          "conditions": "10Hz≤f≤100KHz, TJ=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum output current",
          "symbol": "IOM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Continuous total dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.625,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range",
          "symbol": "TOPR",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "CJ78L15-TA (Changjing) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}