EUP3484ADIR1

{
  "slug": "eup3484adir1",
  "version": "0.1.0",
  "type": "component",
  "description": "Eutech Microelectronics DC-DC Converters, SOIC-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "eup3484adir1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "eup3484adir1.kicad_sym",
    "eup3484adir1.kicad_mod",
    "eup3484adir1.glb",
    "eup3484adir1.step",
    "eup3484adir1.lbr",
    "docs/hero.png",
    "docs/eup3484adir1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "eup3484adir1-hero.glb",
    "eup3484adir1-hero.overlay.json",
    "eup3484adir1-etched.glb"
  ],
  "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",
    "parts": {
      "symbol": "eup3484adir1.kicad_sym",
      "footprint": "eup3484adir1.kicad_mod",
      "model_3d": "eup3484adir1-hero.glb",
      "model_3d_plain": "eup3484adir1-etched.glb",
      "model_3d_step": "eup3484adir1-etched.step",
      "model_3d_step_plain": "eup3484adir1.step",
      "lbr": "eup3484adir1.lbr"
    },
    "distributor_links": {
      "lcsc": "C487772"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T22:42:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "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."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet lists GND on both pin 4 and pin 9 (Exposed Pad); pin 9 is the exposed thermal pad of the S; Pin types for BS, SS and COMP are not stated explicitly in the datasheet; types were assigned from t; Datasheet names the package SOP-8 (EP); the 'SOIC-8-EP' hint is treated as the same package. Pin num"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0551,
        "at": "2026-10-18T22:39:23"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904703044292608",
        "pages": 11,
        "sha256": "3331e0f6457b85f4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "eup3484adir1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
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          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2d6f7e774e8143e3320cbd59eb5be9f3b7864614644e3b072006e1eb05fb7fa6",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "eup3484adir1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2faf3f327dcbc27b81021a47264731b19d4a066a225b32db5835a96471d2ec54",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}