HX6291

{
  "schema_version": 1,
  "type": "component",
  "slug": "hx6291",
  "title": "HX6291",
  "brief": "HX hengjiaxing 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)",
    "hx6291",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "HX6291",
    "manufacturer": "HX hengjiaxing",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226279489437696",
    "parts": {
      "symbol": "hx6291.kicad_sym",
      "footprint": "hx6291.kicad_mod",
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      "model_3d_plain": "hx6291-etched.glb",
      "model_3d_step": "hx6291-etched.step",
      "model_3d_step_plain": "hx6291.step",
      "lbr": "hx6291.lbr"
    },
    "distributor_links": {
      "lcsc": "C2984966"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T23:25:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LX",
        "type": "output",
        "description": "Power switch output (boost switch node) of the internal 0.2 Ω, 2.5 A, 16 V MOSFET, with an absolute maximum LX voltage of 16 V and a requirement to keep the trace wide and short to reduce EMI."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "IC ground, which should be connected close to CIN and COUT on a ground plane."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Error amplifier inverting input regulated to the 0.6 V (±2%) reference, with an absolute maximum of 6 V, and the feedback divider must connect directly and close to this pin, away from LX."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Active-high enable with an enable threshold of 0.96 V and a shutdown threshold of 0.6 V, an absolute maximum of 6 V, and EN must be less than or equal to VCC."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "IC power supply with a recommended range of 2.6 V to 5.5 V, an absolute maximum of 6 V, and an under-voltage lockout of 2.2 V (typ.)."
      },
      {
        "number": "6",
        "name": "OC",
        "type": "input",
        "description": "Adjustable current-limit pin where a resistor from OC to GND (19 kΩ to 96 kΩ) sets the peak switch current from 2.5 A down to 0.5 A, and no capacitance should be placed on this pin."
      }
    ],
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet gives only one package, SOT23-6L, so the pinout applies to the SOT-23-6 variant. Pin n"
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        "cost_usd": 0.0372,
        "at": "2026-10-17T23:22:57"
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      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226279489437696",
        "pages": 9,
        "sha256": "e3d44dc6eca4bfcb",
        "source_tier": "lcsc"
      },
      "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": [
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          2.9,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-17",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "HX hengjiaxing",
      "Package": "SOT-23-6",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "e3d44dc6eca4bfcb702218752b01ece56360382abccda72cb18dd9a8a6f653b2",
      "rows": [
        {
          "name": "Supply Voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "LX Voltage",
          "symbol": "VLX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 16,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN,FB Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
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          "min": 0,
          "typ": null,
          "max": 6,
          "conditions": "",
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        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 455,
          "conditions": "SOT23-6L @TA=25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Operating Temperature",
          "symbol": "TOP",
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          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "Storage Temperature",
          "symbol": "TST",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Lead Temperature (soldering, 10 sec)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "soldering, 10 sec",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.6,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Ambient Temperature",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Supply Range",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 2.6,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operation Frequency",
          "symbol": "FOSC",
          "kind": "electrical",
          "unit": "MHZ",
          "min": 0.8,
          "typ": 1,
          "max": 1.2,
          "conditions": "VFB=1.0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.588,
          "typ": 0.6,
          "max": 0.612,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Adjustable OCP Current",
          "symbol": "IOCP",
          "kind": "electrical",
          "unit": "A",
          "min": 0.5,
          "typ": null,
          "max": 2.5,
          "conditions": "With External Resistor: 19k~96k",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance (Note1)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C / W",
          "min": null,
          "typ": 220,
          "max": null,
          "conditions": "SOT23-6L; natural convection, TA=25°C, JEDEC 51-3 board",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Under Voltage Lockout",
          "symbol": "VUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.2,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "UVLO Hysteresis",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.19,
          "max": null,
          "conditions": "VFB=0.66V, No switching",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Average Supply Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.84,
          "max": null,
          "conditions": "VFB=0.55V, Switching",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Supply Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "VEN=GND",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Frequency Change with Voltage",
          "symbol": "△ f / △ V",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "VCC=2.6V to 5.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Duty Cycle",
          "symbol": "TDUTY",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 90,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "% / V",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "VCC=2.6V～5.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable Voltage",
          "symbol": "VEN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.96,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Voltage",
          "symbol": "VEN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.6,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "On Resistance of Driver",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "ILX=2A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "OCP Current",
          "symbol": "IOCP",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 2.5,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "OTP Temperature",
          "symbol": "TOTP",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "HX6291 (HX hengjiaxing) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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