SY8035DBC

{
  "schema_version": 1,
  "type": "component",
  "slug": "sy8035dbc",
  "title": "SY8035DBC",
  "brief": "Silergy Corp DC-DC Converters, DFN-10(3x3). 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)",
    "sy8035dbc",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SY8035DBC",
    "manufacturer": "Silergy Corp",
    "package": "DFN-10(3x3)",
    "pin_count": 11,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589834426781249536",
    "parts": {
      "symbol": "sy8035dbc.kicad_sym",
      "footprint": "sy8035dbc.kicad_mod",
      "model_3d": "sy8035dbc-hero.glb",
      "model_3d_plain": "sy8035dbc-etched.glb",
      "model_3d_step": "sy8035dbc-etched.step",
      "model_3d_step_plain": "sy8035dbc.step",
      "lbr": "sy8035dbc.lbr"
    },
    "distributor_links": {
      "lcsc": "C5156479"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T11:32:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LX",
        "type": "output",
        "description": "Phase node pin that connects to the inductor; its PCB copper area should be kept as small as possible to improve noise immunity."
      },
      {
        "number": "2",
        "name": "LX",
        "type": "output",
        "description": "Phase node pin that connects to the inductor; its PCB copper area should be kept as small as possible to improve noise immunity."
      },
      {
        "number": "3",
        "name": "LX",
        "type": "output",
        "description": "Phase node pin that connects to the inductor; its PCB copper area should be kept as small as possible to improve noise immunity."
      },
      {
        "number": "4",
        "name": "PG",
        "type": "output",
        "description": "Open-drain power-good output that is low when the output is below 90% of the regulation voltage and high otherwise, and needs a pull-up resistor (above 100k) to the input."
      },
      {
        "number": "5",
        "name": "EN",
        "type": "input",
        "description": "Enable control that turns the device on when pulled high (above 1.5V) and shuts it down when below 0.4V, with an integrated 1MΩ pull-down resistor."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Output feedback input that connects to the center of the output resistor divider, with VOUT = 0.6×(1+R1/R2)."
      },
      {
        "number": "7",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start programming pin; a capacitor from this pin to ground sets the soft-start time as tSS = max(600µs, CSS×0.6V/10µA)."
      },
      {
        "number": "8",
        "name": "SVIN",
        "type": "power_in",
        "description": "Signal power input that must be decoupled to GND with at least a 1µF ceramic capacitor."
      },
      {
        "number": "9",
        "name": "PVIN",
        "type": "power_in",
        "description": "Power input (2.7V to 5.5V supply range) that must be decoupled to GND with at least a 22µF ceramic capacitor."
      },
      {
        "number": "10",
        "name": "PVIN",
        "type": "power_in",
        "description": "Power input (2.7V to 5.5V supply range) that must be decoupled to GND with at least a 22µF ceramic capacitor."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; the center pad of the package is also used as GND and should be tied to a ground plane with vias underneath."
      }
    ],
    "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's pin table lists pin 11 as GND. Page 7 says the center pad is used as GND, but the te; KiCad ERC type for LX, PG, and SS is a judgment call. The datasheet describes LX as a phase node con; The datasheet's pin-1 identifier is shown only as a figure with two options (page 8), so the pin 1 c"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0378,
        "at": "2026-10-18T11:30:40"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589834426781249536",
        "pages": 9,
        "sha256": "7f77345b846744a4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sy8035dbc.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3,
          2.98,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "738e2eb45860c11759f8e4f44ab26932b7c15e4d5d6c8c9ac22ae866a3e38711",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sy8035dbc-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4f976d4a2133f2687683954d753f8a83677688a79a4a789c525ca8381eb3ee5f",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Silergy Corp",
      "Package": "DFN-10(3x3)",
      "Category": "Power Management (PMIC)",
      "Pins": "11"
    },
    "appearance": {
      "contacts": {
        "quote": "3) The PCB copper area associated with LX pin must",
        "page": 7,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "7f77345b846744a4be6b049203a97b71895c621c256da7abaefe94b8f32c5cac"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "7f77345b846744a4be6b049203a97b71895c621c256da7abaefe94b8f32c5cac",
      "rows": [
        {
          "name": "Input Voltage Range",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Feedback Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.591,
          "typ": 0.6,
          "max": 0.609,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FB Input Current",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "nA",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "VFB=VIN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Current",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "EN=0",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "IOUT=0, VFB=VREF ⋅ 105%",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PFET RON",
          "symbol": "RDS(ON)-P",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": null,
          "max": 45,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "NFET RON",
          "symbol": "RDS(ON)-N",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PFET Current Limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN Rising Threshold",
          "symbol": "VENH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN Falling Threshold",
          "symbol": "VENL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input UVLO Threshold",
          "symbol": "VUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2.7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "UVLO Hysteresis",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Oscillator Frequency",
          "symbol": "FOSC",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "IOUT=1A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Min ON Time",
          "symbol": "",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Max Duty Cycle",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Temperature",
          "symbol": "TSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Shutdown temperature",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Hysteresis",
          "symbol": "TSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Hysteresis",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soft Start Time",
          "symbol": "tSS",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 6,
          "max": null,
          "conditions": "CSS=100nF",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soft Start Time without CSS",
          "symbol": "tSS",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 0.6,
          "max": null,
          "conditions": "Without CSS",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Phase Node Discharge Resistance",
          "symbol": "RDISCHG",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply Input Voltage (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Enable, FB Voltage (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Printed as VIN + 0.6V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 2.6,
          "conditions": "TA = 25°C, DFN3X3-10",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance junction-to-ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 38,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance junction-to-case",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature Range (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (soldering, 10 sec)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10 sec",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Human Body Model",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ESD MM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Machine Model",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply Input Voltage (recommended)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature Range (recommended)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature Range (recommended)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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  "discovery_triggers": [
    "sy8035dbc"
  ],
  "discovery_pitch": "SY8035DBC (Silergy Corp) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}