U322

{
  "slug": "u322",
  "version": "0.1.0",
  "type": "component",
  "description": "UNI SEMIC DC-DC Converters, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "u322",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "u322.kicad_sym",
    "u322.kicad_mod",
    "u322.glb",
    "u322.step",
    "u322.lbr",
    "docs/hero.png",
    "docs/u322-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "u322-hero.glb",
    "u322-hero.overlay.json"
  ],
  "component": {
    "mpn": "U322",
    "manufacturer": "UNI SEMIC",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756596966497095680",
    "parts": {
      "symbol": "u322.kicad_sym",
      "footprint": "u322.kicad_mod",
      "model_3d": "u322-hero.glb",
      "model_3d_plain": "u322.glb",
      "model_3d_step": "u322-etched.step",
      "model_3d_step_plain": "u322.step",
      "lbr": "u322.lbr"
    },
    "distributor_links": {
      "lcsc": "C2874735"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T22:30:32Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 546 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip power supply pin, which also serves as the output voltage feedback input when FB is left floating; a 1uF ceramic capacitor is recommended on VDD."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Chip reference ground."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "Non-functional pin; leave floating in application."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback input pin; when left floating the output defaults to 12.5 V."
      },
      {
        "number": "5",
        "name": "CS",
        "type": "input",
        "description": "Peak current sense pin, used to sample the inductor current and set the peak current threshold (left floating, the default limit is 1.2 A)."
      },
      {
        "number": "6",
        "name": "GATE",
        "type": "output",
        "description": "Drive output for the external power MOSFET."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "Non-functional pin; leave floating in application."
      },
      {
        "number": "8",
        "name": "HV",
        "type": "power_in",
        "description": "Internal high-voltage start-up and supply pin, which draws charge from the high-voltage input to charge VDD."
      }
    ],
    "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: The datasheet pin table labels CS as 'O' (output), but its function is peak-current sensing of the s; The datasheet lists pins 3 and 7 together as one NC entry; they are split into two rows with the sam; The datasheet gives no pinout beyond the SOP-8 top view and pin table; the ordering info confirms U3"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0427,
        "at": "2026-10-09T22:28:35"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756596966497095680",
        "pages": 13,
        "sha256": "5a2395cd567a1842",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "u322.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "u322-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "52df97371a57e8e0620608fafb950454bbb155268282066cc21073af5784fa91",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}