EUP3484ADIR1

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  "slug": "eup3484adir1",
  "title": "EUP3484ADIR1",
  "brief": "Eutech Microelectronics DC-DC Converters, SOIC-8-EP. 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)",
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  "component": {
    "mpn": "EUP3484ADIR1",
    "manufacturer": "Eutech Microelectronics",
    "package": "SOIC-8-EP",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904703044292608",
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    "distributor_links": {
      "lcsc": "C487772"
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
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    "pins": [
      {
        "number": "1",
        "name": "BS",
        "type": "power_in",
        "description": "High-side gate drive boost input that supplies the drive for the high-side N-Channel DMOS switch, with a 0.01µF or greater capacitor connected from SW to BS."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply pin that powers the IC and the step-down converter switches, to be driven from a 4.5V to 30V source and bypassed to GND with a suitably large capacitor."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "power_out",
        "description": "Power switching output that connects the output LC filter from SW to the output load."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin that must be connected to the exposed thermal pad for proper operation, with the pad tied to the PCB ground plane using multiple vias."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Output feedback input that senses and regulates the output through a resistive divider, with a feedback threshold of 0.925V."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "passive",
        "description": "Loop compensation pin where a series RC network is connected from COMP to GND to compensate the regulation loop."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Enable logic input where driving high turns the regulator on and low turns it off; it must not be left floating and can be connected directly to IN for automatic startup."
      },
      {
        "number": "8",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start control input where an external capacitor programs the soft-start, and leaving it open selects the internal soft-start function."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed thermal pad that serves as GND and must be connected to the PCB ground plane using multiple vias for good thermal performance."
      }
    ],
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        "at": "2026-10-18T22:39:23"
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        "total": 9,
        "described": 9,
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    "specs": {
      "Manufacturer": "Eutech Microelectronics",
      "Package": "SOIC-8-EP",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
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          "name": "Oscillation Frequency",
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