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Ray Set visibility: public aed989f 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "u0239",
  "title": "U0239",
  "brief": "UNI-SEMIC DC-DC Converters, SOT-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": [
    "component",
    "power management (pmic)",
    "u0239",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "U0239",
    "manufacturer": "UNI-SEMIC",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/83c4caf586ecec5ba1ede163bc77eeee.pdf",
    "parts": {
      "symbol": "u0239.kicad_sym",
      "footprint": "u0239.kicad_mod",
      "model_3d": "u0239-hero.glb",
      "model_3d_plain": "u0239-etched.glb",
      "model_3d_step": "u0239-etched.step",
      "model_3d_step_plain": "u0239.step",
      "lbr": "u0239.lbr"
    },
    "distributor_links": {
      "lcsc": "C41374773"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T19:54:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BS",
        "type": "passive",
        "description": "Bootstrap pin; a capacitor connected between SW and BST pins is required to form a floating supply across the high-side switch driver."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Adjustable version feedback input; connect FB to the center point of the external resistor divider (0.6V reference, absolute max -0.3 to 6V)."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Drive to logic-high to enable the IC and to logic-low to disable it and enter micro-power shutdown mode (absolute max -0.3 to 36V)."
      },
      {
        "number": "5",
        "name": "IN",
        "type": "power_in",
        "description": "Power supply pin with 4V to 30V operating input range (absolute max -0.3 to 36V)."
      },
      {
        "number": "6",
        "name": "SW",
        "type": "passive",
        "description": "Switching pin (absolute max -0.3 to VIN+0.5V)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 1 is named BS in the pin table but the description refers to the 'BST' pin; naming inconsistency"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0621,
        "at": "2026-10-22T19:53:50"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/83c4caf586ecec5ba1ede163bc77eeee.pdf",
        "pages": 12,
        "sha256": "acbdbc28e99d030c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "u0239.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "u0239-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "029d9f4e7efaf23ab6e768a2d994546e933cc81826752217323e381db4301c9d",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UNI-SEMIC",
      "Package": "SOT-23-6",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "acbdbc28e99d030ca98bfd9b193b7c607f2aabbfddd29595da08be4b50df1309",
      "rows": [
        {
          "name": "Input Voltage Range",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Current in Operation",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.4,
          "max": 0.6,
          "conditions": "VEN=3.0V, VFB=1.1V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Current in Shutdown",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VEN =0 or EN = GND",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Regulated Feedback Voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 0.585,
          "typ": 0.6,
          "max": 0.615,
          "conditions": "TA = 25°C, 4V≤VIN ≤18V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-Side Switch Leakage Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VEN=0V, VSW=12V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Duty Cycle",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 93,
          "conditions": "VFB=0.6V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Soft Start",
          "symbol": "",
          "kind": "electrical",
          "unit": "mS",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-Side Switch On-Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 90,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-Side Switch On-Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Upper Switch Current Limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "Minimum Duty Cycle",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Oscillation Frequency",
          "symbol": "",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum On-Time",
          "symbol": "",
          "kind": "electrical",
          "unit": "nS",
          "min": null,
          "typ": 60,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum Off-Time",
          "symbol": "",
          "kind": "electrical",
          "unit": "nS",
          "min": null,
          "typ": 140,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown",
          "symbol": "",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Hysteresis",
          "symbol": "",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN, EN Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VSW Voltage",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "upper limit (VIN+0.5) V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VFB Voltage",
          "symbol": "VFB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering, 10s)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Soldering, 10s",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD (Human Body Model)",
          "symbol": "HMB",
          "kind": "absolute_maximum",
          "unit": "KV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD (Machine Model)",
          "symbol": "MM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Ambient",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 230,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Case",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "u0239"
  ],
  "discovery_pitch": "U0239 (UNI-SEMIC) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "u0239.kicad_sym",
    "u0239.kicad_mod",
    "u0239.glb",
    "u0239.step",
    "u0239.lbr",
    "docs/hero.png",
    "docs/u0239-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "u0239-hero.glb",
    "u0239-hero.overlay.json",
    "u0239-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}