FR9863FS9

{
  "schema_version": 1,
  "type": "component",
  "slug": "fr9863fs9",
  "title": "FR9863FS9",
  "brief": "FITIPOWER(天钰) DC-DC Converters, TSOT-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)",
    "fr9863fs9",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "FR9863FS9",
    "manufacturer": "FITIPOWER(天钰)",
    "package": "TSOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604433625412743168",
    "parts": {
      "symbol": "fr9863fs9.kicad_sym",
      "footprint": "fr9863fs9.kicad_mod",
      "model_3d": "fr9863fs9-hero.glb",
      "model_3d_plain": "fr9863fs9-etched.glb",
      "model_3d_step": "fr9863fs9-etched.step",
      "model_3d_step_plain": "fr9863fs9.step",
      "lbr": "fr9863fs9.lbr"
    },
    "distributor_links": {
      "lcsc": "C42375712"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T09:42:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the device."
      },
      {
        "number": "2",
        "name": "LX",
        "type": "passive",
        "description": "Power switching node to which the external inductor connects; LX voltage is limited to -0.3V to (VIN+0.3V), with dynamic excursions of -5V to VIN+5V for up to 15ns."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input, operating from 4.5V to 28V, with input capacitors to be placed as close as possible between VIN and GND; absolute maximum is -0.3V to +30V."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback input connected to VOUT through a resistive divider, regulated at 0.596V (typ)."
      },
      {
        "number": "5",
        "name": "SHDN",
        "type": "input",
        "description": "Enable input: pull high to turn the IC on and low to turn it off (high threshold 1.6V min, low threshold 0.8V max), and connect to VIN through a 100kΩ resistor for self-startup."
      },
      {
        "number": "6",
        "name": "BST",
        "type": "passive",
        "description": "High-side gate drive boost pin; a capacitor rated 0.1uF to 1uF must be connected from BST to LX, and BST voltage is limited to -0.3V to VLX+6.5V."
      }
    ],
    "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: In the Functional Pin Description table the name for pin 5 is blank; the name SHDN is taken from Fig; KiCad ERC types for LX (passive) and BST (passive) are not stated in the datasheet and were chosen b; Pin numbers and descriptions come from the Functional Pin Description table on page 3; the package a"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0482,
        "at": "2026-10-18T09:41:01"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604433625412743168",
        "pages": 13,
        "sha256": "050262b1bee323ca",
        "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": "fr9863fs9.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1007b8f67a3e81e2c5182bfd1fd27afe4d8d3710e0bfa1a14b8a91db8b595eb5",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fr9863fs9-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "10fba8e07b49c7ab1f6b8b18d2fcaa2171e628f3bed71b11902cfbb844dd1c33",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "FITIPOWER(天钰)",
      "Package": "TSOT-23-6",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "050262b1bee323caba90ceb1378097db069289a191b1f691623d6de1b961619c",
      "rows": [
        {
          "name": "Feedback Voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 0.581,
          "typ": 0.596,
          "max": 0.611,
          "conditions": "4.5V≦VIN≦28V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VIN Quiescent Current",
          "symbol": "IDDQ",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "H =2V, VFB=1V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VIN Shutdown Supply Current",
          "symbol": "ISD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "H =0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Feedback Input Current",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.01,
          "max": 0.1,
          "conditions": "VFB=1V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-Side MOSFET RDS(ON)",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-Side MOSFET RDS(ON)",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Valley Current Limit (Note 3)",
          "symbol": "ILIMIT",
          "kind": "electrical",
          "unit": "A",
          "min": 4.2,
          "typ": 5.5,
          "max": 7.1,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "On Time",
          "symbol": "TON",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "VIN=12V, VOUT=1.05V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum Off Time",
          "symbol": "TOFF(MIN)",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "VFB=0.4V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input Supply Voltage UVLO Threshold",
          "symbol": "VUVLO(Vth)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.1,
          "max": null,
          "conditions": "VIN Rising",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "UVLO Threshold Hysteresis",
          "symbol": "VUVLO(HYS)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Internal Soft-Start Period (Note 3)",
          "symbol": "TSS",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "H Input Low Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "H Input High Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.6,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "H Input Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "H =2V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Threshold (Note 3)",
          "symbol": "TSD",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Hysteresis (Note 3)",
          "symbol": "THYS",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage VIN (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable Voltage H (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LX Voltage",
          "symbol": "VLX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "maximum printed as (VIN +0.3V)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dynamic LX Voltage in 15ns Duration",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "15ns duration; maximum printed as VIN +5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "BST Pin Voltage",
          "symbol": "VBST",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "maximum printed as VLX +6.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "All Other Pins Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TS",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 sec soldering",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage VIN (recommended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 28,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Ambient Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance (θJA)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 85,
          "max": null,
          "conditions": "TSOT-23-6; measured at 25°C ambient, JEDEC-51-7 4-layer board (Note 2)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance (θJC)",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "TSOT-23-6",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "fr9863fs9"
  ],
  "discovery_pitch": "FR9863FS9 (FITIPOWER(天钰)) 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",
    "fr9863fs9.kicad_sym",
    "fr9863fs9.kicad_mod",
    "fr9863fs9.glb",
    "fr9863fs9.step",
    "fr9863fs9.lbr",
    "docs/hero.png",
    "docs/fr9863fs9-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "fr9863fs9-hero.glb",
    "fr9863fs9-hero.overlay.json",
    "fr9863fs9-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}