SCT2650STER

{
  "schema_version": 1,
  "type": "component",
  "slug": "sct2650ster",
  "title": "SCT2650STER",
  "brief": "SCT DC-DC Converters, ESOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "sct2650ster"
  ],
  "component": {
    "mpn": "SCT2650STER",
    "manufacturer": "SCT",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2202132000_SCT-SCT2650STER_C2840771.pdf",
    "parts": {
      "symbol": "sct2650ster.kicad_sym",
      "footprint": "sct2650ster.kicad_mod",
      "model_3d": "sct2650ster-etched.glb",
      "model_3d_plain": "sct2650ster.glb",
      "model_3d_step": "sct2650ster-etched.step",
      "model_3d_step_plain": "sct2650ster.step",
      "lbr": "sct2650ster.lbr"
    },
    "distributor_links": {
      "lcsc": "C2840771"
    },
    "pins": [
      {
        "number": "1",
        "name": "BOOT",
        "type": "passive",
        "description": "Power supply bias for high-side power MOSFET gate driver. Connect a 0.1uF bootstrap capacitor from BOOT to SW. The bootstrap capacitor is charged when SW is low. Absolute max 71V; BOOT-SW UVLO ~2.52V."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply voltage, 4.5V to 60V operating range (absolute max 65V). Connect a local bypass capacitor from VIN to GND; path from VIN to the high-frequency bypass cap and GND must be as short as possible."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable pin with internal pull-up current source (~1µA at 1V, ~4µA at 1.5V). Pull below 1.05V to disable; float or tie to VIN to enable. A resistor divider from VIN to GND at EN sets the input UVLO threshold. Enable high threshold ~1.2V."
      },
      {
        "number": "4",
        "name": "RT/CLK",
        "type": "bidirectional",
        "description": "Sets internal oscillator frequency (100kHz-1.2MHz) via a resistor to GND, or accepts an external clock for PLL synchronization. If external clocking edges stop, operation automatically reverts to the resistor-programmed frequency. RRT=200kΩ → ~500kHz."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Inverting input of the trans-conductance error amplifier. External resistor divider from VOUT to GND sets the output voltage; FB is regulated to the internal 0.8V (±1%) reference. Absolute max 6V."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output. Connect the external frequency loop compensation network (R-C to GND) here. Trans-conductance ~300µS; source/sink ~30µA; clamps ~0.47V (low) and ~2.25V (high). Absolute max 6V."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground return. Tie to the ground plane; the thermal pad must also be connected to this ground for proper operation and thermal performance."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "power_out",
        "description": "Regulator switching node - source of the internal 80mΩ high-side MOSFET. Connect to the external power inductor. Absolute max -1V to 65V; supports up to 5A continuous output current."
      },
      {
        "number": "9",
        "name": "Thermal Pad",
        "type": "power_in",
        "description": "Exposed die-attach pad for heat dissipation. Electrically must be connected to the GND pin and tied to the PCB ground plane for proper operation and optimized thermal performance (θja ~42 °C/W)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2202132000_SCT-SCT2650STER_C2840771.pdf",
        "pages": 23,
        "sha256": "ecd15ccc04629605",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm@sha256:5848244c5e72002e",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "sct2650ster.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sct2650ster-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "578f9828ea04dd9a10293e28de05202c81307d460241c52e86014457b1318d1e",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "SCT",
      "Package": "ESOP-8",
      "Category": "PMIC",
      "Pins": "9"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sct2650ster"
  ],
  "discovery_pitch": "SCT2650STER (SCT) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sct2650ster.kicad_sym",
    "sct2650ster.kicad_mod",
    "sct2650ster.glb",
    "sct2650ster.step",
    "sct2650ster-etched.step",
    "sct2650ster.lbr",
    "docs/hero.png",
    "docs/sct2650ster-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "variants": [
    {
      "mpn": "SCT2650STER",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T05:35:37.219Z"
}