78D05

{
  "schema_version": 1,
  "type": "component",
  "slug": "78d05",
  "title": "78D05",
  "brief": "Foshan Blue Rocket Elec Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "pmic",
    "78d05"
  ],
  "component": {
    "mpn": "78D05",
    "manufacturer": "Foshan Blue Rocket Elec",
    "package": "TO-252",
    "pin_count": 4,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/660b5de3bbadcdfec031c56ffc7ccafc.pdf",
    "parts": {
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      "model_3d_plain": "78d05.glb",
      "model_3d_step": "78d05-etched.step",
      "model_3d_step_plain": "78d05.step",
      "lbr": "78d05.lbr"
    },
    "distributor_links": {
      "lcsc": "C358374"
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated input voltage. Operating input range approximately 7 V to 25 V; absolute maximum 35 V. A 0.33 uF input bypass capacitor is recommended close to the pin."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / common return for the regulator. Pin 2 is electrically tied to pin 4 (tab) as the device's GND connection."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated +5.0 V output (4.75 V to 5.25 V over line/load). Sources up to 1.5 A with internal thermal and short-circuit protection. A 0.1 uF output capacitor is recommended for stability."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "TO-252 heat-sink tab, internally connected to GND (common with pin 2). Provides the primary thermal path to the PCB copper pour."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/660b5de3bbadcdfec031c56ffc7ccafc.pdf",
        "pages": 6,
        "sha256": "a436c55167a422a9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -5.04,
        -2.28
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TO-252-3_TabPin4@sha256:2f658cb7ebcd9a04",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "78d05.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "78d05-etched.step",
        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b9f797e9dfcb4ac9b900136b450442d17fa8051a81944ded9ef3f32de6e0d0e",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Foshan Blue Rocket Elec",
      "Package": "TO-252",
      "Category": "PMIC",
      "Pins": "4"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a436c55167a422a9",
      "rows": [
        {
          "name": "Output voltage (Tj=25℃)",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "V",
          "min": 4.8,
          "typ": 5,
          "max": 5.2,
          "conditions": "Tj=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage (line/load/power range)",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "V",
          "min": 4.75,
          "typ": 5,
          "max": 5.25,
          "conditions": "Vi=7V-20V Io=5mA-1A Po≤15W",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "△Vo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "Tj=25℃ Io=5mA-1.5A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "△Vo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "Tj=25℃ Io=250mA-750mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "△Vo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 3,
          "max": 100,
          "conditions": "Tj=25℃ Vi=7V-25V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "△Vo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 1,
          "max": 50,
          "conditions": "Tj=25℃ Vi=8V-12V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "Tj=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current change",
          "symbol": "△Iq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "Vi=7V-25V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current change",
          "symbol": "△Iq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "Io=5mA-1A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "Vd",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Io=1A Tj=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range",
          "symbol": "TOPR",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": 0,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "/W ℃",
          "min": null,
          "typ": null,
          "max": 65,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-case",
          "symbol": "RθJC",
          "kind": "thermal",
          "unit": "/W ℃",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage drift",
          "symbol": "△Vo/△T",
          "kind": "temperature_coefficient",
          "unit": "mV/℃",
          "min": null,
          "typ": -1.1,
          "max": null,
          "conditions": "Io=5mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output noise voltage",
          "symbol": "eN",
          "kind": "electrical",
          "unit": "μV/Vo",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "B=10Hz-100KHz Tj=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage rejection",
          "symbol": "SVR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 62,
          "max": null,
          "conditions": "Vi=8V-18V f=120Hz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output resistance",
          "symbol": "Ro",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 17,
          "max": null,
          "conditions": "f=1KHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Short circuit current",
          "symbol": "Isc",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.75,
          "max": null,
          "conditions": "Vi=35V Tj=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Short circuit peak current",
          "symbol": "Iscp",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 2.2,
          "max": null,
          "conditions": "Tj=25℃",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_triggers": [
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  "discovery_pitch": "78D05 (Foshan Blue Rocket Elec) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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  "updated_at": "2026-09-24T15:19:23.207Z"
}