SA24403FCA

{
  "schema_version": 1,
  "type": "component",
  "slug": "sa24403fca",
  "title": "SA24403FCA",
  "brief": "Silergy Corp DC-DC Converters, ESOP-8. 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)",
    "sa24403fca",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SA24403FCA",
    "manufacturer": "Silergy Corp",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904339055652864",
    "parts": {
      "symbol": "sa24403fca.kicad_sym",
      "footprint": "sa24403fca.kicad_mod",
      "model_3d": "sa24403fca-hero.glb",
      "model_3d_plain": "sa24403fca-etched.glb",
      "model_3d_step": "sa24403fca-etched.step",
      "model_3d_step_plain": "sa24403fca.step",
      "lbr": "sa24403fca.lbr"
    },
    "distributor_links": {
      "lcsc": "C7427423"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T15:33:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BS",
        "type": "passive",
        "description": "Boot-strap pin that supplies the high-side gate driver; connect a 0.1µF ceramic capacitor between BS and LX."
      },
      {
        "number": "2",
        "name": "LX",
        "type": "output",
        "description": "Inductor pin connected to the switching node; absolute maximum rating is -0.3V to 44V to GND."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply pin, operating range 4.2V to 40V, to be decoupled to GND with at least a 4.7µF ceramic capacitor."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Enable control that turns the regulator on when pulled high and must not be left floating."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Output feedback pin connected to the center point of the output resistor divider, programming VOUT = 0.6×(1+R1/R2)."
      },
      {
        "number": "6",
        "name": "FS",
        "type": "input",
        "description": "Frequency setting pin; a resistor from FS to GND sets the switching frequency per fsw(kHz)=10^6/(9.3×RFS(kΩ)+30), adjustable from 300kHz to 2.2MHz."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device."
      },
      {
        "number": "8",
        "name": "PG",
        "type": "output",
        "description": "Open-drain power-good output that is externally pulled high when VOUT is within regulation range and internally pulled low otherwise."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Package mismatch: the package hint says ESOP-8, but the datasheet lists the ordering number SA24403F; The pinout figure text is garbled in the extracted datasheet; pin numbers were taken from the explic; The KiCad types for BS (passive) and LX (output) are my judgment, since the datasheet does not class",
          "exposed pad 9 added from the footprint"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0607,
        "at": "2026-10-18T15:31:01"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904339055652864",
        "pages": 13,
        "sha256": "8ba79a1eb4c8bf1c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "centre_offset_mm": 0,
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        "sha256": "91f6630dff6afe7e70c15e252a7033cd93ec71d9b3c218b2b3b8b71de06cfad9",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Silergy Corp",
      "Package": "ESOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
    },
    "appearance": {
      "contacts": {
        "quote": "3) The PCB copper area associated with the LX pin",
        "page": 9,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "8ba79a1eb4c8bf1cac2790fc085db7987568ddd67bdb515d869b347087ca278e"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8ba79a1eb4c8bf1cac2790fc085db7987568ddd67bdb515d869b347087ca278e",
      "rows": [
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          "name": "Input Voltage Range",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 4.2,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input UVLO Threshold",
          "symbol": "VUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": 3.6,
          "typ": 3.9,
          "max": 4.2,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": 10,
          "typ": 18,
          "max": 25,
          "conditions": "IOUT=0, VFB=VREF×105%, TJ=25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
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          "min": 5,
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          "conditions": "IOUT=0, VFB=VREF×105%, TJ= -40°C~125°C",
          "source_page": 4,
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        {
          "name": "FB Input Current",
          "symbol": "IFB",
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          "unit": "nA",
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          "max": 50,
          "conditions": "VFB=0.65V",
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        },
        {
          "name": "Feedback Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.594,
          "typ": 0.6,
          "max": 0.606,
          "conditions": "TJ= 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.588,
          "typ": 0.6,
          "max": 0.612,
          "conditions": "TJ= -40°C~125°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Top FET RON",
          "symbol": "RDS(ON)1",
          "kind": "electrical",
          "unit": "mΩ",
          "min": 70,
          "typ": 115,
          "max": 210,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Bottom FET RON",
          "symbol": "RDS(ON)2",
          "kind": "electrical",
          "unit": "mΩ",
          "min": 45,
          "typ": 80,
          "max": 135,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Top FET Current Limit",
          "symbol": "ILIM,TOP",
          "kind": "electrical",
          "unit": "A",
          "min": 4.4,
          "typ": 5.5,
          "max": 6.6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN High Threshold",
          "symbol": "VENH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.08,
          "typ": 1.2,
          "max": 1.32,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN Low Threshold",
          "symbol": "VENL",
          "kind": "electrical",
          "unit": "V",
          "min": 0.9,
          "typ": 1,
          "max": 1.1,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Oscillator Frequency Program Range",
          "symbol": "fOSC,RNG",
          "kind": "electrical",
          "unit": "kHz",
          "min": 300,
          "typ": null,
          "max": 2200,
          "conditions": "RFS=45.6k~360k",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Oscillator Frequency Accuracy",
          "symbol": "fOSC,ACC",
          "kind": "electrical",
          "unit": "%",
          "min": -12,
          "typ": null,
          "max": 12,
          "conditions": "fOSC=2MHz, with RFS resistor of 1% accuracy",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Soft-start Time",
          "symbol": "tSS",
          "kind": "electrical",
          "unit": "ms",
          "min": 0.5,
          "typ": 1,
          "max": 2,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (Absolute Maximum), IN to GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 44,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage on LX, FB, EN, FS, PG to GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 44,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "BS-LX Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "TA = 25°C, SO8E",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 sec soldering",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply Input Voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.2,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance, junction-to-ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "Note 2: measured in natural convection at TA=25°C, two-layer Silergy demo board",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance, junction-to-case",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 12,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "SA24403FCA (Silergy Corp) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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