LGS5148

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  "slug": "lgs5148",
  "title": "LGS5148",
  "brief": "Legend-Si 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",
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    "power supply chip",
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  "component": {
    "mpn": "LGS5148",
    "manufacturer": "Legend-Si",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1a6d8b40732b4f9561bab21a8d0db307.pdf",
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    "distributor_links": {
      "lcsc": "C5123972"
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    "distributor_check": {
      "checked_at": "2026-10-21T02:53:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
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    "pins": [
      {
        "number": "1",
        "name": "BST",
        "type": "power_out",
        "description": "Internal power switch node that connects to the external inductor and Schottky diode, with the BST-to-SW voltage limited to -0.3 V to 6 V (VBST-SW of 5 V for the bootstrap capacitor CBST)."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground pin, which the input capacitor CVIN should connect to as close as possible to the VIN and GND pins."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback input where the output voltage is set by an external resistor divider, with a feedback voltage of 775 mV to 825 mV (800 mV typical) and a pin-to-GND rating of -0.3 V to 6 V."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Enable pin that is pulled high to enable the output and pulled low to disable it, with 2 V to 5 V recommended on EN to GND, a rated range of -0.3 V to 6 V, and a rising threshold of 1.5 V to 1.8 V."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Input power pin for a 8 V to 48 V input range, which requires a bypass capacitor of at least 4.7 µF to GND, with a pin-to-GND rating of -0.3 V to 60 V."
      },
      {
        "number": "6",
        "name": "SW",
        "type": "output",
        "description": "Converter switch node that connects to the external power inductor, with a pin-to-GND rating of -0.3 V to 60 V."
      }
    ],
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        "described": 6,
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      "Manufacturer": "Legend-Si",
      "Package": "SOT-23-6",
      "Category": "Power Supply Chip",
      "Pins": "6"
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        {
          "name": "Minimum conduction time of high side MOS",
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        {
          "name": "Maximum switch duty cycle",
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        {
          "name": "Thermal resistance coefficient from silicon core to surrounding air",
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