LM22676MRX

{
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  "type": "component",
  "slug": "lm22676mrx",
  "title": "LM22676MRX",
  "brief": "Tokmas DC-DC Converters, SOP-8-EP. 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)",
    "lm22676mrx",
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  "component": {
    "mpn": "LM22676MRX",
    "manufacturer": "Tokmas",
    "package": "SOP-8-EP",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f55328958c0b367bf16ff0f1aa430088.pdf",
    "parts": {
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      "lbr": "lm22676mrx.lbr"
    },
    "distributor_links": {
      "lcsc": "C7589227"
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    "distributor_check": {
      "checked_at": "2026-10-22T22:33:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
        "pn": null,
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    },
    "pins": [
      {
        "number": "1",
        "name": "BOOT",
        "type": "passive",
        "description": "Power supply bias for the high-side MOSFET gate driver; connect a 0.1uF capacitor from BOOT to SW."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Inverting input of the transconductance error amplifier; a resistor divider from the output sets the output voltage, regulating FB to the 1.221V typical reference."
      },
      {
        "number": "5",
        "name": "EN",
        "type": "input",
        "description": "Enable pin with internal pull-up current source; pull below 1.05V to disable, float or connect to VIN to enable, and a resistor divider from VIN sets the UVLO threshold."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "7",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply voltage (5.5V to 60V); connect a local bypass capacitor from VIN to GND with the shortest possible path."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "output",
        "description": "Regulator switching output; connect to an external power inductor."
      },
      {
        "number": "9",
        "name": "Thermal Pad",
        "type": "power_in",
        "description": "Die heat dissipation path, electrically connected to GND and must be connected to the PCB ground plane for proper operation and thermal performance."
      }
    ],
    "provenance": {
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        "at": "2026-10-22T22:32:50"
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        "pages": 19,
        "sha256": "24c40150d3226fc2",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
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      "Package": "SOP-8-EP",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
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          "max": 60,
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          "name": "Shutdown current from VIN pin",
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          "typ": 2,
          "max": 5,
          "conditions": "EN=0, no load",
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        {
          "name": "Reference voltage of FB",
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          "kind": "electrical",
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          "typ": 1.221,
          "max": 1.246,
          "conditions": "",
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        {
          "name": "High-side power MOSFET peak current limit threshold",
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          "min": 4.25,
          "typ": 4.75,
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        {
          "name": "Switching frequency",
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          "unit": "kHz",
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          "typ": 500,
          "max": 550,
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        {
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        {
          "name": "Operating junction temperature",
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          "conditions": "",
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          "name": "VIN, EN voltage",
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        {
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        {
          "name": "SW voltage",
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        {
          "name": "BOOT-SW voltage",
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          "conditions": "",
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        {
          "name": "SS, FB, RT/CLK voltage",
          "symbol": "SS, FB, RT/CLK",
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          "min": -0.3,
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          "unit": "kV",
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          "conditions": "CDM, all pins",
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        {
          "name": "Input UVLO threshold",
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          "unit": "V",
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          "typ": 4.3,
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        {
          "name": "UVLO hysteresis",
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          "min": null,
          "typ": 400,
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        },
        {
          "name": "Quiescent current from VIN pin",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "EN floating, no load, non-switching, BOOT-SW=5V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "High-side MOSFET on-resistance",
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          "kind": "electrical",
          "unit": "mΩ",
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          "typ": 220,
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          "name": "Enable high threshold",
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          "name": "Enable low threshold",
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          "min": null,
          "typ": 1,
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          "name": "Enable pin pull-up current",
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          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 1.6,
          "max": null,
          "conditions": "EN=1V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Enable pin pull-up current",
          "symbol": "IEN_H",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "EN=1.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Internal soft start time",
          "symbol": "Tss",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 16,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum on-time",
          "symbol": "tON_MIN",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "VIN=24V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback overvoltage rising",
          "symbol": "VOVP",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 110,
          "max": null,
          "conditions": "VFB/VREF rising",
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        {
          "name": "Feedback overvoltage falling",
          "symbol": "VOVP",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 105,
          "max": null,
          "conditions": "VFB/VREF falling",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "BOOT UV reference voltage",
          "symbol": "VBOOTUV",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.52,
          "max": null,
          "conditions": "BOOT-SW rising",
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        {
          "name": "Thermal shutdown threshold",
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          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 172,
          "max": null,
          "conditions": "TJ rising",
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          "name": "Thermal shutdown hysteresis",
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          "typ": 12,
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        {
          "name": "Junction-to-ambient thermal resistance",
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          "typ": 40.34,
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          "name": "Junction-to-top characterization parameter",
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