FP6381AS5CTR

{
  "schema_version": 1,
  "type": "component",
  "slug": "fp6381as5ctr",
  "title": "FP6381AS5CTR",
  "brief": "Fitipower Integrated Tech DC-DC Converters, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "pmic",
    "fp6381as5ctr"
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  "component": {
    "mpn": "FP6381AS5CTR",
    "manufacturer": "Fitipower Integrated Tech",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a68059267819d5f6c640fc227b6b6130.pdf",
    "parts": {
      "symbol": "fp6381as5ctr.kicad_sym",
      "footprint": "fp6381as5ctr.kicad_mod",
      "model_3d": "fp6381as5ctr-etched.glb",
      "model_3d_plain": "fp6381as5ctr.glb",
      "model_3d_step": "fp6381as5ctr-etched.step",
      "model_3d_step_plain": "fp6381as5ctr.step",
      "lbr": "fp6381as5ctr.lbr"
    },
    "distributor_links": {
      "lcsc": "C148091"
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Enable control pin. Pull high (VIH >= 1.5V) to turn the IC on, pull low (VIL <= 0.4V) to disable. Must not be left floating."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin. Power return for the internal N-channel low-side MOSFET and control circuitry."
      },
      {
        "number": "3",
        "name": "LX",
        "type": "output",
        "description": "Power switching output node. Connect the external inductor between LX and the output filter capacitor. Rated to VIN+0.3V max. Internal 100Ω discharge resistance when disabled."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input pin, 2.5V to 6V operating range (6.5V absolute max). Place input decoupling capacitor (e.g. 4.7µF MLCC) as close as possible from VIN to GND to minimize noise."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback input pin. Connect FB to VOUT through a resistive divider; the internal error amplifier regulates FB to VREF = 0.6V (typ, 0.588V-0.612V). Input leakage <= 1µA."
      }
    ],
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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    "pin1": {
      "pad": "1",
      "at": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-5@sha256:455a3f7c3e5eb5b8",
      "mark": "drawn"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "sha256": "19729eb3f1acacdb8fa32bef46793bf0a38490dc88bfdf2cee196ff036e376e5",
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      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Fitipower Integrated Tech",
      "Package": "SOT-23-5",
      "Category": "PMIC",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4b3207bd5495340b",
      "rows": [
        {
          "name": "Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.588,
          "typ": 0.6,
          "max": 0.612,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Oscillation Frequency",
          "symbol": "FOSC",
          "kind": "electrical",
          "unit": "MHz",
          "min": 1.2,
          "typ": 1.5,
          "max": 1.8,
          "conditions": "IOUT=200mA",
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          "source": "datasheet"
        },
        {
          "name": "Shutdown Current",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "EN=0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "FB Input Leakage Current",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.01,
          "max": 1,
          "conditions": "VFB=VIN",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage (VIN)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operation Temperature Range",
          "symbol": "TOPR",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "VIN to GND",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LX to GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN, FB, PG to GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Storage Temperature",
          "symbol": "TS",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "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": "Lead Temperature (Soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10 sec",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance SOT-23-5 (junction-to-ambient)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "SOT-23-5",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance SOT-23-5 (junction-to-case)",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "SOT-23-5",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "VFB=0.65V, IOUT=0A",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "P-Channel MOSFET On-Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "Note 3",
          "source_page": 5,
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        },
        {
          "name": "N-Channel MOSFET On-Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "Note 3",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "P-Channel Current Limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.6,
          "max": null,
          "conditions": "Note 3",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN High-Level Input Voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "",
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        },
        {
          "name": "EN Low-Level Input Voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "",
          "source_page": 5,
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        },
        {
          "name": "Under Voltage Lockout Voltage",
          "symbol": "UVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.4,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "UVLO Hysteresis",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum On Time",
          "symbol": "",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum Duty Cycle",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Internal Soft Start Time",
          "symbol": "TSS",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PG Rising Threshold",
          "symbol": "VPG(H)",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 90,
          "max": null,
          "conditions": "VFB Rising",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PG Sink Current",
          "symbol": "IPG",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "VPG=0.1V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LX Discharge Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Temperature",
          "symbol": "TSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "Note 3",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
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  "variants": [
    {
      "mpn": "FP6381AS5CTR",
      "kind": "packaging"
    },
    {
      "mpn": "FP6381AS5CTRS6CTR",
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    {
      "mpn": "FP6381AS5CTRS8CTR",
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    }
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  "updated_at": "2026-09-24T20:46:12.254Z"
}