MT36291

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  "slug": "mt36291",
  "title": "MT36291",
  "brief": "Aerosemi DC-DC Converters, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "MT36291",
    "manufacturer": "Aerosemi",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2202151500_XI-AN-Aerosemi-Tech-MT36291_C2974847.pdf",
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    "distributor_links": {
      "lcsc": "C2974847"
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "power_out",
        "description": "Power Switch Output. Drain of the internal 80mΩ N-channel power MOSFET. Connect the boost inductor and the Schottky output rectifier here. SW node can swing between GND and 22V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin. Connect to a solid ground plane for heat sinking and noise protection."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback input to the internal error amplifier. Regulated to the 0.6V internal bandgap reference. Connect an external resistor divider from VOUT to FB to GND to set the output voltage: VOUT = 0.6V x (1 + R1/R2). FB input bias current is typically -10nA."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Regulator On/Off Control Input. Drive high (>1.5V) to enable the converter, low (<0.6V) to shut it down (shutdown current ~0.1µA). Tie to VIN for automatic startup. Absolute max 18V."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin, 2.2V to 16V operating range (18V absolute max). Must be locally bypassed with a low-ESR ceramic capacitor (22µF X5R/X7R recommended) placed close to the IC."
      },
      {
        "number": "6",
        "name": "OC",
        "type": "input",
        "description": "Adjustable peak switch current limit. Connect a resistor (19kΩ to 96kΩ) from OC to GND to program the current limit from 2.5A down to 0.5A per IOCP = 48000/R. Leave floating to use the internal 2.5A default current limit. Keep trace short."
      }
    ],
    "provenance": {
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
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        "refuses_to_fabricate": true
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    "pin1": {
      "pad": "1",
      "at": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-6@sha256:f341c73aac9dcb55",
      "mark": "drawn"
    },
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-07",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Aerosemi",
      "Package": "SOT-23-6",
      "Category": "PMIC",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "863d456e8ebecc44",
      "rows": [
        {
          "name": "Operating Input Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.2,
          "typ": null,
          "max": 16,
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        },
        {
          "name": "FB Voltage",
          "symbol": "",
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          "min": 0.588,
          "typ": 0.6,
          "max": 0.612,
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        },
        {
          "name": "Adjustable OCP Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": 0.5,
          "typ": null,
          "max": 2.5,
          "conditions": "With External Resistor:19k~96k",
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        {
          "name": "SW On Resistance",
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          "kind": "electrical",
          "unit": "mΩ",
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        },
        {
          "name": "SW Leakage",
          "symbol": "",
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          "unit": "µA",
          "min": null,
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          "max": 1,
          "conditions": "VSW = 20V",
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        },
        {
          "name": "FB Input Bias Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": -50,
          "typ": -10,
          "max": null,
          "conditions": "VFB = 0.6V",
          "source_page": 3,
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        },
        {
          "name": "Quiescent Current (PFM)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 100,
          "max": 200,
          "conditions": "VFB=0.7V，No switch",
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        {
          "name": "Quiescent Current (PWM)",
          "symbol": "",
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          "max": 2.2,
          "conditions": "VFB=0.5V，switch",
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        },
        {
          "name": "Current (Shutdown)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "VEN= 0V",
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        },
        {
          "name": "VIN, EN voltages",
          "symbol": "VIN, EN",
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          "unit": "V",
          "min": -0.3,
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        },
        {
          "name": "FB Voltages",
          "symbol": "FB",
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          "min": -0.3,
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        {
          "name": "SW Voltage",
          "symbol": "SW",
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          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 22,
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        },
        {
          "name": "Power Dissipation",
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          "unit": "W",
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          "typ": null,
          "max": 0.6,
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        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
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          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 160,
          "conditions": "",
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        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "ESD HBM (Human Body Mode)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Human Body Mode",
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        {
          "name": "ESD MM (Machine Mode)",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Machine Mode",
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        },
        {
          "name": "Thermal Resistance θJC",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "",
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        },
        {
          "name": "Thermal Resistance θJA",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "",
          "source_page": 2,
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  "updated_at": "2026-09-25T02:32:33.766Z"
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