GBI1450SMAR

{
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  "type": "component",
  "slug": "gbi1450smar",
  "title": "GBI1450SMAR",
  "brief": "GOSEMICON DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power management (pmic)",
    "gbi1450smar",
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  "component": {
    "mpn": "GBI1450SMAR",
    "manufacturer": "GOSEMICON",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756313080924258304",
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    "distributor_links": {
      "lcsc": "C5451745"
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    "distributor_check": {
      "checked_at": "2026-10-18T05:52:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
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    },
    "pins": [
      {
        "number": "1",
        "name": "BOOT",
        "type": "input",
        "description": "Supply for the high-side power MOSFET gate driver; a 0.1 uF or greater ceramic capacitor must be connected between BOOT and SW, with BOOT-to-SW recommended range 0 to 6 V and absolute maximum 6.5 V."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input with a recommended operating range of 4.0 V to 40 V; it must be locally bypassed."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable logic input that supports voltages up to VIN, with thresholds of 1.21 V rising and 1.05 V falling; floating the pin enables the device and the hysteresis is set by an external resistor network."
      },
      {
        "number": "4",
        "name": "RT",
        "type": "input",
        "description": "Switching frequency is set by a resistor from this pin to GND, which must not be left floating or shorted to GND; absolute maximum RT-to-GND voltage is 6.5 V."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Output feedback sense input, regulated to the internal 0.8 V reference (0.79 V to 0.81 V); recommended range is 0 to 6 V, and it is connected to a resistor divider from VOUT to GND."
      },
      {
        "number": "6",
        "name": "SS",
        "type": "input",
        "description": "Soft-start pin; a capacitor to GND sets the soft-start time, and with the pin floating the default soft-start time is typically 4.5 ms."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "output",
        "description": "Switching node of the buck converter; absolute maximum range is -3 V to 42 V to GND."
      },
      {
        "number": "9",
        "name": "Thermal Pad",
        "type": "power_in",
        "description": "Exposed thermal pad that must be grounded in the PCB layout."
      }
    ],
    "provenance": {
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet lists the thermal pad as pin 9 in the pin table, even though the package is described ; The datasheet labels VIN and BOOT as type 'I' (input). They are mapped here to power_in and input re; The top-view pin diagram on page 2 is not clearly aligned with the pin table. The numbers above are "
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        "at": "2026-10-18T05:50:53"
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        "sha256": "e2a30384aeaa767d",
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      "pins": {
        "total": 9,
        "described": 9,
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  "metadata": {
    "specs": {
      "Manufacturer": "GOSEMICON",
      "Package": "ESOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
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          "name": "Feedback Voltage",
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        {
          "name": "High side FET on-resistance",
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          "typ": 500,
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          "conditions": "RT=200k",
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        {
          "name": "Maximum duty cycle",
          "symbol": "DMAX",
          "kind": "electrical",
          "unit": "%",
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          "conditions": "FSW=500kHz",
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          "name": "Maximum switching frequency",
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        {
          "name": "Minimum on-time",
          "symbol": "tON_MIN",
          "kind": "timing",
          "unit": "ns",
          "min": 100,
          "typ": null,
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        {
          "name": "HSD peak current limit",
          "symbol": "ILIM_HSD",
          "kind": "electrical",
          "unit": "A",
          "min": 7.3,
          "typ": 8,
          "max": 8.8,
          "conditions": "VIN=24V",
          "source_page": 5,
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        {
          "name": "Input UVLO hysteresis",
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          "typ": 350,
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        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "EN=floating, No load, No switch, 4.0V≤VIN≤40V, BOOT-SW=5V",
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        {
          "name": "Soft start current",
          "symbol": "ISS",
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          "typ": 4,
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        {
          "name": "Soft start time",
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          "unit": "ms",
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          "name": "Thermal shutdown threshold",
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          "kind": "electrical",
          "unit": "°C",
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          "name": "Thermal shutdown hysteresis",
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          "min": null,
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          "name": "Output over voltage protection rising",
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          "unit": "%",
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          "name": "Output over voltage protection falling",
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          "unit": "%",
          "min": null,
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        {
          "name": "Supply voltage range",
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          "name": "Switching frequency range at RT mode",
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          "unit": "kHz",
          "min": 200,
          "typ": null,
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        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
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        {
          "name": "Input voltage, VIN and EN to GND",
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        {
          "name": "FB to GND",
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          "name": "SS to GND",
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          "name": "BOOT to SW",
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          "name": "Junction temperature",
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          "name": "Junction to board characterization parameter",
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