MC33063AP

{
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  "type": "component",
  "slug": "mc33063ap",
  "title": "MC33063AP",
  "brief": "Texas Instruments DC-DC Converters, PDIP-8. 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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    "power supply chip",
    "mc33063ap",
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  "component": {
    "mpn": "MC33063AP",
    "manufacturer": "Texas Instruments",
    "package": "PDIP-8",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/lit/ds/symlink/mc33063ap.pdf",
    "parts": {
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      "footprint": "mc33063ap.kicad_mod",
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      "lbr": "mc33063ap.lbr"
    },
    "distributor_links": {
      "lcsc": "C2865301"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:14:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "Switch Collector",
        "type": "bidirectional",
        "description": "High-current internal switch collector input (absolute max 40 V, switch current up to 1.5 A)."
      },
      {
        "number": "2",
        "name": "Switch Emitter",
        "type": "bidirectional",
        "description": "High-current internal switch emitter output (absolute max 40 V)."
      },
      {
        "number": "3",
        "name": "Timing Capacitor",
        "type": "passive",
        "description": "Attach a timing capacitor to change the switching frequency."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "5",
        "name": "Comparator Inverting Input",
        "type": "input",
        "description": "Attach to a resistor divider network to create a feedback loop; comparator threshold is 1.25 V typical."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_in",
        "description": "Logic supply voltage, tie to VIN; recommended operating range 3 V to 40 V."
      },
      {
        "number": "7",
        "name": "Ipk",
        "type": "input",
        "description": "Current-limit sense input; current-limit sense voltage is 300 mV typical."
      },
      {
        "number": "8",
        "name": "Driver Collector",
        "type": "bidirectional",
        "description": "Darlington pair driving transistor collector input (absolute max 100 mA driver collector current, 40 V)."
      }
    ],
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      "pins": {
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        "described": 8,
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        "extents_mm": [
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "PDIP-8",
      "Category": "Power Supply Chip",
      "Pins": "8"
    },
    "characteristics": {
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      "rows": [
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          "name": "Oscillator frequency",
          "symbol": "fosc",
          "kind": "electrical",
          "unit": "kHz",
          "min": 24,
          "typ": 33,
          "max": 42,
          "conditions": "VPIN5 = 0 V, CT = 1 nF, TA = 25°C",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Charge current",
          "symbol": "Ichg",
          "kind": "electrical",
          "unit": "μA",
          "min": 24,
          "typ": 35,
          "max": 42,
          "conditions": "VCC = 5 V to 40 V, TA = 25°C",
          "source_page": 4,
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          "name": "Discharge current",
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          "typ": 220,
          "max": 260,
          "conditions": "VCC = 5 V to 40 V, TA = 25°C",
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        {
          "name": "Discharge-to-charge current ratio",
          "symbol": "Idischg/Ichg",
          "kind": "electrical",
          "unit": "",
          "min": 5.2,
          "typ": 6.5,
          "max": 7.5,
          "conditions": "VPIN7 = VCC, TA = 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current-limit sense voltage",
          "symbol": "VIpk",
          "kind": "electrical",
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          "typ": 300,
          "max": 350,
          "conditions": "Idischg = Ichg, TA = 25°C",
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        {
          "name": "Saturation voltage – Darlington connection",
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          "min": null,
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          "max": 1.3,
          "conditions": "ISW = 1 A, pins 1 and 8 connected, full range",
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        {
          "name": "Saturation voltage – non-Darlington connection",
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          "max": 0.7,
          "conditions": "ISW = 1 A, RPIN8 = 82 Ω to VCC, forced β ∼ 20, full range",
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        {
          "name": "DC current gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 50,
          "typ": 75,
          "max": null,
          "conditions": "ISW = 1 A, VCE = 5 V, TA = 25°C",
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          "source": "datasheet"
        },
        {
          "name": "Collector off-state current",
          "symbol": "IC(off)",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.01,
          "max": 100,
          "conditions": "VCE = 40 V, full range",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Comparator threshold voltage (25°C)",
          "symbol": "Vth",
          "kind": "electrical",
          "unit": "V",
          "min": 1.225,
          "typ": 1.25,
          "max": 1.275,
          "conditions": "TA = 25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Comparator threshold voltage (full range)",
          "symbol": "Vth",
          "kind": "electrical",
          "unit": "V",
          "min": 1.21,
          "typ": null,
          "max": 1.29,
          "conditions": "Full range",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Threshold-voltage line regulation",
          "symbol": "ΔVth",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 1.4,
          "max": 5,
          "conditions": "VCC = 5 V to 40 V, full range",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Input bias current",
          "symbol": "IIB",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": -20,
          "max": -400,
          "conditions": "VIN = 0 V, full range",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "VCC = 5 V to 40 V, CT = 1 nF, VPIN7 = VCC, VPIN5 > Vth, VPIN2 = GND, all other pins open, full range",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating free-air temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "MC33063A",
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          "name": "Supply voltage",
          "symbol": "VCC",
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          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "Comparator inverting input voltage range",
          "symbol": "VIR",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "Switch collector voltage",
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          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
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        {
          "name": "Switch emitter voltage",
          "symbol": "VE(switch)",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "VPIN1 = 40 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switch collector to switch emitter voltage",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "Driver collector voltage",
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          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Driver collector current",
          "symbol": "IC(driver)",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switch current",
          "symbol": "ISW",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating virtual junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 85,
          "max": null,
          "conditions": "P package, 8 pins",
          "source_page": 4,
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        {
          "name": "ESD HBM",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": 2500,
          "max": null,
          "conditions": "Human body model, all pins",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD CDM",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": 1500,
          "max": null,
          "conditions": "Charged device model, all pins",
          "source_page": 4,
          "source": "datasheet"
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    "email": "[email protected]"
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