U3220

{
  "schema_version": 1,
  "type": "component",
  "slug": "u3220",
  "title": "U3220",
  "brief": "UNI SEMIC DC-DC Converters, SOP-7. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "u3220",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "U3220",
    "manufacturer": "UNI SEMIC",
    "package": "SOP-7",
    "pin_count": 7,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755162691310891008",
    "parts": {
      "symbol": "u3220.kicad_sym",
      "footprint": "u3220.kicad_mod",
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      "model_3d_plain": "u3220-etched.glb",
      "model_3d_step": "u3220-etched.step",
      "model_3d_step_plain": "u3220.step",
      "lbr": "u3220.lbr"
    },
    "distributor_links": {
      "lcsc": "C5362238"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T20:57:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip supply pin that also serves as the output voltage feedback input when FB is floating; a 0.1uF SMD capacitor is recommended, VDD_ON is typically 7.5V, VDD_OVP is typically 24V, the internal clamp is 26V at 10mA, and VDD is rated to 30V maximum."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Chip reference ground."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback input pin; leaving it floating selects the default 14.3V output, VFB_REF is 1.84 to 1.90V (typ 1.87V), the OVP threshold is typically 2.40V and the OLP threshold is typically 1.40V."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "output",
        "description": "Peak current detection pin used to sense the inductor peak current, with a typical peak current threshold VIPK of 0.3V and an abnormal over-current threshold VAOCP of 0.6V; FB and CS pin voltage is rated -0.3 to 7V."
      },
      {
        "number": "5",
        "name": "Drain",
        "type": "power_in",
        "description": "Drain of the internal high-voltage power MOSFET, with a typical breakdown voltage of 120V and a Drain pin voltage rating of -0.3 to 120V."
      },
      {
        "number": "6",
        "name": "Drain",
        "type": "power_in",
        "description": "Drain of the internal high-voltage power MOSFET (same node as pin 5), with a typical breakdown voltage of 120V and a Drain pin voltage rating of -0.3 to 120V."
      },
      {
        "number": "8",
        "name": "HV",
        "type": "power_in",
        "description": "Internal high-voltage pin for the built-in 180V high-voltage start-up circuit, which charges the VDD capacitor from the high-voltage input during start-up."
      }
    ],
    "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 (page 5) lists pins 1, 2, 3, 4, 5, 6 and 8 only; there is no pin 7 entry and; The datasheet lists pins 5 and 6 together as a single 'Drain' entry; they are reported separately he; The datasheet types CS as 'O' (output), but its function is a current-sense comparator input; the ma"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0412,
        "at": "2026-10-17T20:56:10"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755162691310891008",
        "pages": 12,
        "sha256": "ab104bb8c5f2403f",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 7,
        "described": 7,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4c9435ffd3683a4ae45655e397c25900eda4f6782a526780f4f7b7b99a32dca7",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "u3220-etched.step",
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        "sha256": "55a0301789d37abc846918f06ede0bb6ee3e041f3a2eeaf6f95488d926d841b7",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UNI SEMIC",
      "Package": "SOP-7",
      "Category": "Power Management (PMIC)",
      "Pins": "7"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ab104bb8c5f2403fadd1e316dba02ddc18073c760a6adf1606006980dcd1e4f3",
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        {
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          "name": "VDD 箝位电流",
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        },
        {
          "name": "FB ，CS 管脚电压",
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        },
        {
          "name": "封装热阻---结到环境",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
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        {
          "name": "最高芯片工作结温",
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          "name": "储藏温度",
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        {
          "name": "管脚温度 (焊接 10 秒)",
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        {
          "name": "ESD 能力 (人体模型)",
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          "unit": "KV",
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        {
          "name": "工作环境温度",
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        },
        {
          "name": "HV 脚供电电流",
          "symbol": "IHV",
          "kind": "electrical",
          "unit": "mA",
          "min": 1,
          "typ": 4,
          "max": null,
          "conditions": "HV=90V, VDD=0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VDD 启动电流",
          "symbol": "IVDD_st",
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          "unit": "uA",
          "min": null,
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          "max": 300,
          "conditions": "无开关工作",
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        },
        {
          "name": "内部差分放大器输入端基准",
          "symbol": "VFB_REF",
          "kind": "electrical",
          "unit": "V",
          "min": 1.84,
          "typ": 1.87,
          "max": 1.9,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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  "discovery_triggers": [
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  "discovery_pitch": "U3220 (UNI SEMIC) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
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}