MC34063AG-S08-R

{
  "schema_version": 1,
  "type": "component",
  "slug": "mc34063ag-s08-r",
  "title": "MC34063AG-S08-R",
  "brief": "UTC Unisonic Tech DC-DC Converters, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "mc34063ag-s08-r"
  ],
  "component": {
    "mpn": "MC34063AG-S08-R",
    "manufacturer": "UTC Unisonic Tech",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586175445322633216",
    "parts": {
      "symbol": "mc34063ag-s08-r.kicad_sym",
      "footprint": "mc34063ag-s08-r.kicad_mod",
      "model_3d": "mc34063ag-s08-r-etched.glb",
      "model_3d_plain": "mc34063ag-s08-r.glb",
      "model_3d_step": "mc34063ag-s08-r-etched.step",
      "model_3d_step_plain": "mc34063ag-s08-r.step",
      "lbr": "mc34063ag-s08-r.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "Switch Collector",
        "type": "output",
        "description": "Collector of the internal Darlington output switch transistor (T1). Rated to 40 V, 1.5 A switch current; connects to the inductor in step-up/inverting topologies or to the load in step-down topology."
      },
      {
        "number": "2",
        "name": "Switch Emitter",
        "type": "output",
        "description": "Emitter of the internal Darlington output switch transistor (T1). Rated to 40 V, 1.5 A; typically tied to GND in step-up topology or to the inductor/diode node in step-down topology."
      },
      {
        "number": "3",
        "name": "Timing Capacitor",
        "type": "passive",
        "description": "External timing capacitor (CT) pin. The selected capacitor value sets the internal oscillator run rate (typ. charge current 31 uA, discharge current 190 uA); CT ~= 4e-5 * tON."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference return for internal logic, oscillator, comparator, and reference."
      },
      {
        "number": "5",
        "name": "Comparator Inverting Input",
        "type": "input",
        "description": "Inverting input of the internal error comparator; non-inverting is tied to the 1.25 V (typ., 1.21-1.29 V) bandgap reference. Driven by the output feedback divider (VOUT = 1.25 * (1 + R2/R1)) to set the regulated output and gate the Darlington output switch."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input, 3.0 V to 40 V operating range (40 V absolute max). Standby supply current typ. 2.7 mA (max 4.0 mA)."
      },
      {
        "number": "7",
        "name": "IPEAK Sense",
        "type": "input",
        "description": "Current-limit sense input. Monitors the voltage drop across an external sense resistor placed in series with VCC; trips the current-limit at typ. 300 mV (250-350 mV) to terminate the switch on-time. RS ~= 0.3 / ISW."
      },
      {
        "number": "8",
        "name": "Driver Collector",
        "type": "output",
        "description": "Collector of the internal Darlington driver transistor (T2). Rated to 40 V; typically tied to VCC through a base-drive/current-limit resistor for the internal switch, or used to drive an external NPN/PNP boost transistor for load currents >1.5 A."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586175445322633216",
        "pages": 9,
        "sha256": "9f905b6ede06557e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mc34063ag-s08-r.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mc34063ag-s08-r-etched.step",
        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
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        "sha256": "fd7c505be53a127336b769379f9fb8d8821960ebcd447a66486844c17a01e39d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UTC Unisonic Tech",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    }
  },
  "variants": [
    {
      "mpn": "MC34063AG-S08-R",
      "kind": "packaging"
    },
    {
      "mpn": "MC34063AG-S08-T",
      "kind": "unknown"
    },
    {
      "mpn": "MC34063AL-D08-T",
      "kind": "unknown"
    },
    {
      "mpn": "MC34063AG-D08-T",
      "kind": "unknown"
    }
  ],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
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  ],
  "discovery_pitch": "MC34063AG-S08-R (UTC Unisonic Tech) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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  "files": [
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    "mc34063ag-s08-r.step",
    "mc34063ag-s08-r.lbr",
    "docs/hero.png",
    "docs/mc34063ag-s08-r-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
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  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-28T18:48:48.312Z"
}