MPQ2459GJ-AEC1-Z

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  "slug": "mpq2459gj-aec1-z",
  "title": "MPQ2459GJ-AEC1-Z",
  "brief": "Monolithic Power Systems DC-DC Converters, TSOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power management (pmic)",
    "mpq2459gj-aec1-z",
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  "component": {
    "mpn": "MPQ2459GJ-AEC1-Z",
    "manufacturer": "Monolithic Power Systems",
    "package": "TSOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836773703782400",
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    "distributor_links": {
      "lcsc": "C3194253",
      "digikey": "1589-1784-2-ND",
      "mouser": "946-MPQ2459GJ-AEC1-Z"
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    "distributor_check": {
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        "pn": "1589-1784-2-ND",
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      {
        "number": "1",
        "name": "BST",
        "type": "power_out",
        "description": "Bootstrap pin: connect a capacitor between SW and BST to form a floating supply for the power-switch driver, with VBS limited to VSW + 6V (absolute maximum); the datasheet recommends a 0.1µF to 1µF BST capacitor."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground and voltage reference for the regulated output; requires special layout, placed outside the D1-to-C1 ground path to keep switching spikes from introducing voltage noise."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback input that sets the output voltage through an external resistor divider from the output to GND; the frequency foldback comparator lowers the oscillator frequency when VFB is below 250mV to prevent current-limit runaway during a short circuit."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "ON/OFF control: pull EN above 1.2V to turn the device on, and connect a 100kΩ resistor from EN to IN for automatic enable; all other pins are rated -0.3V to +6V absolute maximum."
      },
      {
        "number": "5",
        "name": "IN",
        "type": "power_in",
        "description": "Supply input for the 4.5V to 55V unregulated input range; requires C1 to prevent large voltage spikes at the input, with VIN absolute maximum of 60V."
      },
      {
        "number": "6",
        "name": "SW",
        "type": "output",
        "description": "Switch output connecting the internal power MOSFET to the inductor and external Schottky diode, with VSW rated from -0.3V to VIN + 0.3V (absolute maximum)."
      }
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        "guard_notes": [
          "extractor flagged: The datasheet does not assign a KiCad ERC class to BST. power_out was chosen because BST is the floa; GND and IN are typed power_in per the KiCad convention given in the instructions. The datasheet desc"
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        "cost_usd": 0.0531,
        "at": "2026-10-18T05:22:48"
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        "described": 6,
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      "Package": "TSOT-23-6",
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          "name": "Operating Junction Temp.",
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          "name": "Thermal Resistance, Junction-to-Ambient",
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          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
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          "max": null,
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          "name": "Thermal Resistance, Junction-to-Case",
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          "name": "Feedback Current",
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          "conditions": "VFB = 0.85V",
          "source_page": 3,
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        {
          "name": "Switch Leakage Current",
          "symbol": "ISW LKG",
          "kind": "electrical",
          "unit": "μA",
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          "conditions": "VEN = 0V, VSW = 0V",
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          "name": "Minimum ON Time",
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          "name": "Thermal Shutdown",
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