SCT2231TVAR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sct2231tvar",
  "title": "SCT2231TVAR",
  "brief": "SCT DC-DC Converters, SOT-563-6. 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 ics",
    "sct2231tvar",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SCT2231TVAR",
    "manufacturer": "SCT",
    "package": "SOT-563-6",
    "pin_count": 6,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/95fccdc30441eb90b0c7b2c89e0c3fd2.pdf",
    "parts": {
      "symbol": "sct2231tvar.kicad_sym",
      "footprint": "sct2231tvar.kicad_mod",
      "model_3d": "sct2231tvar-hero.glb",
      "model_3d_plain": "sct2231tvar-etched.glb",
      "model_3d_step": "sct2231tvar-etched.step",
      "model_3d_step_plain": "sct2231tvar.step",
      "lbr": "sct2231tvar.lbr"
    },
    "distributor_links": {
      "lcsc": "C2912565"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T00:28:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input that supplies the IC and the step-down converter switches and must be driven from a 4.2V to 17V source."
      },
      {
        "number": "2",
        "name": "SW",
        "type": "power_out",
        "description": "Power switching output node that feeds the LC output filter, with a capacitor required from SW to BST to power the high-side switch."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground that must be soldered directly to the ground plane."
      },
      {
        "number": "4",
        "name": "BST",
        "type": "power_in",
        "description": "Supply for the high-side power MOSFET gate driver that requires a 0.1uF or greater ceramic capacitor between BST and SW."
      },
      {
        "number": "5",
        "name": "EN",
        "type": "input",
        "description": "Enable logic input with precision thresholds of 1.2V rising and 1.1V falling, where floating the pin enables the device."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Feedback sensing input connected to a resistor divider from VOUT, which the device regulates to the internal 0.8V typical reference."
      }
    ],
    "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": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 18,
        "cost_usd": 0.0008,
        "at": "2026-10-28T00:27:57"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/95fccdc30441eb90b0c7b2c89e0c3fd2.pdf",
        "pages": 18,
        "sha256": "f3634eba5d522281",
        "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": "sct2231tvar.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          1.6,
          0.63
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "76c34aa4905777c0a8abe4718019904a3a9f8343cab7cc056f4516b7ef5165fc",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sct2231tvar-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          1.6,
          0.63
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "813492866817ccd889a65e9425a22d8d3ab7db954b77fb68ed5ef6da3ef731dd",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "SCT",
      "Package": "SOT-563-6",
      "Category": "Power Management ICs",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "f3634eba5d522281038ad4b86b2afa29a0fe4447d3453da1b1c89aa3860b7953",
      "rows": [
        {
          "name": "Supply Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "Over operating free-air temperature unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Switch Node Voltage",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -1,
          "typ": null,
          "max": 20,
          "conditions": "Over operating free-air temperature unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Switch Node Transient Voltage",
          "symbol": "VSW(<10ns)",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -2.5,
          "typ": null,
          "max": 22,
          "conditions": "<10ns",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Bootstrap Voltage",
          "symbol": "VBST",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "Referenced to VSW: VSW-0.3 to VSW+6",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Feedback Voltage",
          "symbol": "VFB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "Over operating free-air temperature unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Enable/UVLO Voltage",
          "symbol": "VEN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "Over operating free-air temperature unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Over operating free-air temperature unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "Over operating free-air temperature unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.2,
          "typ": null,
          "max": 17,
          "conditions": "Over operating free-air temperature range unless otherwise noted",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Over operating free-air temperature range unless otherwise noted",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Human Body Model ESD",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "HBM per ANSI-JEDEC-JS-001-2014, all pins",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Charged Device Model ESD",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "CDM per ANSI-JEDEC-JS-002-2014, all pins",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction to ambient thermal resistance (SOT563)",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "SOT563 package",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction to case thermal resistance (SOT563)",
          "symbol": "RθJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "SOT563 package",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating input voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 4.2,
          "typ": null,
          "max": 17,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input UVLO",
          "symbol": "VIN_UVLO",
          "kind": "electrical",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 4.15,
          "conditions": "VIN rising",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input UVLO hysteresis",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown current",
          "symbol": "ISD",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 1.5,
          "max": 5,
          "conditions": "EN=0, No load, VIN=12V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 275,
          "max": null,
          "conditions": "EN=2V, No load, No switching. VIN=12V. BST-SW=5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable high threshold",
          "symbol": "VEN_H",
          "kind": "electrical",
          "unit": "V",
          "min": 1.18,
          "typ": null,
          "max": 1.25,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable low threshold",
          "symbol": "VEN_L",
          "kind": "electrical",
          "unit": "V",
          "min": 1.03,
          "typ": null,
          "max": 1.1,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable pin input current",
          "symbol": "IEN",
          "kind": "electrical",
          "unit": "uA",
          "min": 1,
          "typ": 1.5,
          "max": 2,
          "conditions": "EN=1V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable pin hysteresis current",
          "symbol": "IEN_HYS",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 5.5,
          "max": null,
          "conditions": "EN=1.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High side FET on-resistance",
          "symbol": "RDSON_H",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low side FET on-resistance",
          "symbol": "RDSON_L",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 42,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 0.792,
          "typ": 0.8,
          "max": 0.808,
          "conditions": "TJ=25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 0.784,
          "typ": 0.8,
          "max": 0.816,
          "conditions": "TJ=-40°C~125°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LSD valley current limit",
          "symbol": "ILIM_LSD",
          "kind": "electrical",
          "unit": "A",
          "min": 3.2,
          "typ": 3.7,
          "max": 4.2,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switching frequency",
          "symbol": "FSW",
          "kind": "timing",
          "unit": "kHz",
          "min": null,
          "typ": 750,
          "max": null,
          "conditions": "VIN=12V, VOUT=5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum on-time",
          "symbol": "tON_MIN",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 90,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum off-time",
          "symbol": "tOFF_MIN",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 220,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Internal soft-start time",
          "symbol": "tSS",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 2.5,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown threshold",
          "symbol": "TSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "TJ rising",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown hysteresis",
          "symbol": "",
          "kind": "electrical",
          "unit": "",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sct2231tvar"
  ],
  "discovery_pitch": "SCT2231TVAR (SCT) 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",
    "sct2231tvar.kicad_sym",
    "sct2231tvar.kicad_mod",
    "sct2231tvar.glb",
    "sct2231tvar.step",
    "sct2231tvar.lbr",
    "docs/hero.png",
    "docs/sct2231tvar-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sct2231tvar-hero.glb",
    "sct2231tvar-hero.overlay.json",
    "sct2231tvar-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}