main
Ray Set visibility: public d05045c 15d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "78d05l-tn3-r",
  "title": "78D05L-TN3-R",
  "brief": "UTC Unisonic Tech 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",
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    "mpn": "78D05L-TN3-R",
    "manufacturer": "UTC Unisonic Tech",
    "package": "TO-252-2(DPAK)",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
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      "footprint": "78d05l-tn3-r.kicad_mod",
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      "lbr": "78d05l-tn3-r.lbr"
    },
    "distributor_links": {
      "lcsc": "C71134"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T04:16:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "INPUT",
        "type": "power_in",
        "description": "Unregulated input voltage to the regulator; the absolute maximum input voltage is 35 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (common) pin of the regulator, also the reference for the output voltage."
      },
      {
        "number": "3",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated 5 V output for the 78D05, rated up to 0.5 A output current with 1.2 A typical peak output current."
      }
    ],
    "provenance": {
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      "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 ordering table maps the 78D05L-TN3-R (TN3 suffix) to the package printed as 'TO-252'. The packag; Pin 1 / 2 / 3 assignment comes from the ordering-table pin code (I = Input, G = GND, O = Output) on "
        ],
        "pages_sent": 9,
        "cost_usd": 0.0505,
        "at": "2026-10-18T04:14:41"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586175496925696000",
        "pages": 9,
        "sha256": "d4475e10472bbb50",
        "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"
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    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "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": "78d05l-tn3-r-etched.step",
        "role": "eda",
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        "sha256": "8a2b1ee8125ed893921731c797637f51255d20a2f9c8010cca61dc2ce9050608",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UTC Unisonic Tech",
      "Package": "TO-252-2(DPAK)",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "d4475e10472bbb50cfdbb97c8957dd58581735849126aad735187fa80e9a610b",
      "rows": [
        {
          "name": "Output Voltage",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.8,
          "typ": 5,
          "max": 5.2,
          "conditions": "IOUT=5mA~0.5A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.75,
          "typ": null,
          "max": 5.25,
          "conditions": "VIN =7.5~20V, IOUT=5mA~0.5A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "IOUT=5mA~0.5A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "IOUT=5mA~200mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VIN =7V~25V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "IOUT=0.5A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current Change",
          "symbol": "ΔIQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VIN =7.5~20V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current Change",
          "symbol": "ΔIQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "IOUT=5mA~0.5A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 62,
          "typ": 80,
          "max": null,
          "conditions": "VIN =8~18V, f=120Hz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Noise Voltage",
          "symbol": "eN",
          "kind": "electrical",
          "unit": "μV",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "10Hz≤f≤100kHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient of VOUT",
          "symbol": "∆VOUT/∆T",
          "kind": "temperature_coefficient",
          "unit": "mV/°C",
          "min": null,
          "typ": -0.6,
          "max": null,
          "conditions": "IOUT=5mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Peak Output Current",
          "symbol": "IPEAK",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.2,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Short-Circuit Current",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "VIN=VOUT+19V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "VD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Current",
          "symbol": "IOUT",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "TC=25°C, TO-251/TO-252 (package association inferred from layout)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -20,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction to Case",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 12.5,
          "max": null,
          "conditions": "TO-251/TO-252 package (association inferred from layout)",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
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  "sections": [
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  "discovery_triggers": [
    "78d05l-tn3-r"
  ],
  "discovery_pitch": "78D05L-TN3-R (UTC Unisonic Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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    "path": "docs/hero.png"
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  "visibility": {
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}