main
Ray Set visibility: public 0fd92d9 15d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "qx2303l50f",
  "title": "QX2303L50F",
  "brief": "QX Micro Devices DC-DC Converters, SOT-23-5. 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 ics",
    "qx2303l50f",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "QX2303L50F",
    "manufacturer": "QX Micro Devices",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/610b09082d6e57813c7a7fcfc379e180.pdf",
    "parts": {
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      "lbr": "qx2303l50f.lbr"
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    "distributor_links": {
      "lcsc": "C219028"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T20:37:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Chip enable, active high; a low level (below 0.2 V) puts the chip in shutdown with standby input current of 1 uA max, high level is at least 0.4*VOUT, and the voltage range is -0.3 V to VOUT+0.3 V."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_in",
        "description": "Input voltage pin per the pin table (boost output/supply node, 5.0 V for this QX2303L50F option); absolute maximum 7 V."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected internally on the QX2303LXXF SOT23-5 version; leave floating."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground."
      },
      {
        "number": "5",
        "name": "LX",
        "type": "output",
        "description": "Switching signal output to the inductor from the internal MOS switch; maximum LX current 1000 mA, maximum voltage 7 V, typical current limit 800 mA."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet pin table labels VOUT as 'input voltage' (输入电压) while the boost output is taken from i; Package variant inferred from MPN suffix: F = SOT23-5, L = internal MOS switch, 50 = 5.0 V. This mat"
        ],
        "pages_sent": 14,
        "cost_usd": 0.077,
        "at": "2026-10-22T20:36:17"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/610b09082d6e57813c7a7fcfc379e180.pdf",
        "pages": 14,
        "sha256": "80cb4ae49c2e83f6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "qx2303l50f.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "qx2303l50f-etched.step",
        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e8444c4819cb17ab2b4f0f9c61d64f87c5a06048362abc9aa1bc08c8d4fa9985",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "QX Micro Devices",
      "Package": "SOT-23-5",
      "Category": "Power Management ICs",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "80cb4ae49c2e83f6e94507032362cc4e89dd91ec96470a1ce877e0e4d7a15ba0",
      "rows": [
        {
          "name": "Input voltage",
          "symbol": "VINMAX",
          "kind": "electrical",
          "unit": "V",
          "min": 0.7,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Current limit",
          "symbol": "ILIMIT",
          "kind": "electrical",
          "unit": "mA",
          "min": 600,
          "typ": 800,
          "max": 1000,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output voltage accuracy",
          "symbol": "ΔVOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -2.5,
          "typ": null,
          "max": 2.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Standby input current",
          "symbol": "IINQ",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "no load, EN low",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN low voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN high input current",
          "symbol": "",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN low input current",
          "symbol": "",
          "kind": "electrical",
          "unit": "uA",
          "min": -0.1,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum voltage at VOUT and LX",
          "symbol": "VMAX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN pin voltage range",
          "symbol": "VMIN_MAX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "upper limit VOUT+0.3",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum LX current",
          "symbol": "ILX_MAX",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "SOT-23-5 maximum power dissipation",
          "symbol": "PSOT-23-5",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.25,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -20,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Soldering temperature",
          "symbol": "TSD",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": 230,
          "typ": null,
          "max": 240,
          "conditions": "time less than 30 s",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD voltage (HBM)",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2000,
          "conditions": "human body model",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output voltage temperature coefficient",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "printed as less than 100 ppm/°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Start-up voltage",
          "symbol": "VSTART",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "ILOAD=1mA, VIN from 0V to 2V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Hold voltage",
          "symbol": "VHOLD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.6,
          "max": null,
          "conditions": "ILOAD=1mA, VIN from 2V to 0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "No-load input current",
          "symbol": "IIN0",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "VIN=1.8V, VOUT=3.3V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum oscillation frequency",
          "symbol": "FMAX",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum duty cycle",
          "symbol": "DCOSC",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 83,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "breadcrumbs",
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  "discovery_triggers": [
    "qx2303l50f"
  ],
  "discovery_pitch": "QX2303L50F (QX Micro Devices) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
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}