FP5139BWR-LF

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  "slug": "fp5139bwr-lf",
  "title": "FP5139BWR-LF",
  "brief": "Advanced Analog Technology DC-DC Converters, TSSOP-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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  "component": {
    "mpn": "FP5139BWR-LF",
    "manufacturer": "Advanced Analog Technology",
    "package": "TSSOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881528244088832",
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
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      "mouser": {
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    "pins": [
      {
        "number": "1",
        "name": "FB",
        "type": "input",
        "description": "Error amplifier inverting input, compared against the 0.5 V internal reference to regulate the DC-DC output voltage."
      },
      {
        "number": "2",
        "name": "SCP",
        "type": "input",
        "description": "Soft-start and short-circuit protection timing pin; a capacitor here sets the soft-start time (Tss ms = 0.35 × C µF) and the short-circuit protection time (Tscp ms = 0.8 × C µF)."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "IC power supply, rated 1.8 V to 15 V, with 15 V as the absolute maximum power supply voltage."
      },
      {
        "number": "4",
        "name": "BR / CTL",
        "type": "input",
        "description": "Sets the output drive current through an external resistor RB (390 Ω in the test conditions) and controls the output: low or open disables the output (standby), high enables operation."
      },
      {
        "number": "5",
        "name": "OUT",
        "type": "output",
        "description": "Totem-pole output for driving an external NPN transistor or N-MOS, with absolute maximum output source current of -50 mA and sink current of 50 mA."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "IC ground reference."
      },
      {
        "number": "7",
        "name": "OSC",
        "type": "input",
        "description": "Oscillator pin; connect a resistor and capacitor from this pin to ground to set the switching frequency from 20 kHz to 1 MHz, with a sawtooth swing of about 0.1 V to 0.6 V."
      },
      {
        "number": "8",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier compensation output, whose positive swing is about 0.87 V typical and negative swing about 0.2 V maximum."
      }
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        "guard_notes": [
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        "at": "2026-10-09T14:24:03"
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      "Package": "TSSOP-8",
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          "name": "Output Saturation Voltage (VOL1)",
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          "name": "Input Off Condition",
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