FR9850S6

{
  "schema_version": 1,
  "type": "component",
  "slug": "fr9850s6",
  "title": "FR9850S6",
  "brief": "Fitipower Integrated Tech DC-DC Converters, SOT-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)",
    "fr9850s6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "FR9850S6",
    "manufacturer": "Fitipower Integrated Tech",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590463382781390848",
    "parts": {
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      "footprint": "fr9850s6.kicad_mod",
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      "model_3d_plain": "fr9850s6-etched.glb",
      "model_3d_step": "fr9850s6-etched.step",
      "model_3d_step_plain": "fr9850s6.step",
      "lbr": "fr9850s6.lbr"
    },
    "distributor_links": {
      "lcsc": "C5183450"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T00:32:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BST",
        "type": "passive",
        "description": "High-side gate drive boost pin, with a capacitor rated 0.1uF to 1uF connected from this pin to LX to fully turn on the internal high-side NMOS."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; the input capacitors should be placed as close as possible between VIN and GND."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback input connected to VOUT through a resistive divider, regulated at 0.6V (VFB 0.591V to 0.609V)."
      },
      {
        "number": "4",
        "name": "SHDN",
        "type": "input",
        "description": "Enable input: pull high to turn the IC on and low to turn it off (VIH 1.5V min, VIL 0.5V max), and connect to VIN through a 100kΩ resistor for self-startup."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input with a recommended range of 4.5V to 17V and an absolute maximum of 20V; input capacitors should be placed as close as possible to VIN and GND."
      },
      {
        "number": "6",
        "name": "LX",
        "type": "output",
        "description": "Power switching node that connects to the external inductor, with a voltage limit of -0.3V to VIN+0.3V (dynamic -5V to VIN+5V for 15ns)."
      }
    ],
    "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 pin table on page 3 leaves the name cell for pin 4 blank. The name SHDN is taken from the pin fi; The datasheet does not state KiCad electrical types. Types for BST (passive) and LX (output) are inf; Pin numbers come from the pin table on page 3, which matches the SOT-23-6 pin figure on page 1 (BST,"
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        "cost_usd": 0.0384,
        "at": "2026-10-19T00:32:13"
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        "pages": 10,
        "sha256": "9e875006971d6db7",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "seat": "z = 0",
        "extents_mm": [
          2.8,
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        "centre_offset_mm": 0,
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        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
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        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Fitipower Integrated Tech",
      "Package": "SOT-23-6",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "9e875006971d6db7566bd83f428a4c522beceff8eae187a8f75fcebd607b7079",
      "rows": [
        {
          "name": "Feedback Voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 0.591,
          "typ": 0.6,
          "max": 0.609,
          "conditions": "4.5V≦VIN≦17V",
          "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": "VIN Shutdown Supply Current",
          "symbol": "ISD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 1,
          "max": 10,
          "conditions": "H =0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage VIN",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable Voltage H",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LX Voltage",
          "symbol": "VLX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dynamic LX Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "15ns duration",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "BST Pin Voltage",
          "symbol": "VBST",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "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",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage VIN (recommended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 17,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operation Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance, junction-to-ambient (SOT-23-6)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "Note 2: measured at 25°C ambient, JEDEC-51-7 4-layer board",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance, junction-to-case (SOT-23-6)",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 110,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN Quiescent Current",
          "symbol": "IDDQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.3,
          "max": null,
          "conditions": "H =2V, VFB=1V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-Side MOSFET RDS(ON)",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-Side MOSFET RDS(ON)",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-Side MOSFET Current Limit",
          "symbol": "ILIMIT(HS)",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 3.2,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "On Time",
          "symbol": "TON",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 150,
          "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": 180,
          "max": null,
          "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": 4.3,
          "max": null,
          "conditions": "VIN Rising",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "UVLO Threshold Hysteresis",
          "symbol": "VUVLO(HYS)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.35,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Internal Soft-Start Period",
          "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": 0.5,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "H Input High Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "H Input Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "H =2V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Threshold",
          "symbol": "TSD",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Hysteresis",
          "symbol": "THYS",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
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    "name": "Ray",
    "email": "[email protected]"
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