MAX17502FATB+T

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  "title": "MAX17502FATB+T",
  "brief": "Analog Devices Inc Maxim Integrated DC-DC Converters, TDFN-10(2x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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  "component": {
    "mpn": "MAX17502FATB+T",
    "manufacturer": "Analog Devices Inc Maxim Integrated",
    "package": "TDFN-10(2x3)",
    "pin_count": 11,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588914724037120000",
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      "lbr": "max17502fatb-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C559500",
      "digikey": "MAX17502FATB+TTR-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T16:31:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MAX17502FATB+TTR-ND",
        "status": "found"
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      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground; connect externally to the power ground plane and tie GND and PGND together at the ground return of the VCC bypass capacitor."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power-supply input with a stated input supply range of 4.5V to 60V."
      },
      {
        "number": "3",
        "name": "EN/UVLO",
        "type": "input",
        "description": "Enable/undervoltage-lockout input; drive high to enable the output, or divide VIN to GND to set the turn-on input voltage (EN rising threshold 1.194V to 1.236V, falling 1.114V to 1.156V)."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_out",
        "description": "Internal 5V LDO output that must be bypassed with 1µF ceramic capacitance to GND (VCC output range 4.65V to 5.35V)."
      },
      {
        "number": "5",
        "name": "FB/VO",
        "type": "input",
        "description": "Feedback input; connect directly to the output on fixed-output versions or to the center of the VOUT-to-GND divider on adjustable versions (FB regulation voltage 0.9V typical)."
      },
      {
        "number": "6",
        "name": "SS",
        "type": "input",
        "description": "Soft-start input; a capacitor from SS to GND sets the soft-start time (charging current 5µA typical, rated 4.7µA to 5.3µA)."
      },
      {
        "number": "7",
        "name": "N.C./COMP",
        "type": "passive",
        "description": "External loop compensation: on adjustable MAX17502G/H connect an RC network from COMP to GND; on fixed-output MAX17502E/F it is a no-connect and must be left unconnected."
      },
      {
        "number": "8",
        "name": "RESET",
        "type": "output",
        "description": "Open-drain power-good output that is driven low when FB falls below 92.5% of its set value and goes high 1024 clock cycles after FB rises above 95.5%; it requires an external pullup and can sink 2mA while low."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Analog ground; connect to the exposed pad and to PGND at the VCC bypass capacitor return."
      },
      {
        "number": "10",
        "name": "LX",
        "type": "output",
        "description": "Switching node connected to the inductor; it is high impedance when the device is in shutdown mode (LX-to-PGND rating -0.3V to VIN+0.3V)."
      },
      {
        "number": "11",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
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        "guard_notes": [
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          "exposed pad 11 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
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        "sha256": "0aba253c36f1f7d5",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
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  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices Inc Maxim Integrated",
      "Package": "TDFN-10(2x3)",
      "Category": "Power Management (PMIC)",
      "Pins": "11"
    },
    "appearance": {
      "contacts": {
        "quote": "— EP Exposed Pad. Connect to the GND pin of the IC. Connect to a large copper plane below the IC",
        "page": 9,
        "doc": "ds.pdf",
        "material": "copper"
      },
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          "name": "Input Voltage Range",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 60,
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        },
        {
          "name": "Input Supply Current, shutdown",
          "symbol": "IIN-SH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.9,
          "max": 3.5,
          "conditions": "VEN = 0V, shutdown mode",
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          "source": "datasheet"
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        {
          "name": "Input Supply Current, normal switching",
          "symbol": "IIN-SW",
          "kind": "electrical",
          "unit": "mA",
          "min": 4.75,
          "typ": null,
          "max": 6.75,
          "conditions": "Normal switching mode, no load, MAX17502E/F/G",
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        {
          "name": "EN Threshold, rising",
          "symbol": "VENR",
          "kind": "electrical",
          "unit": "V",
          "min": 1.194,
          "typ": 1.218,
          "max": 1.236,
          "conditions": "VEN rising",
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        {
          "name": "EN Threshold, falling",
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          "min": 1.114,
          "typ": 1.135,
          "max": 1.156,
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        {
          "name": "EN Input Leakage Current",
          "symbol": "IEN",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 8,
          "max": 200,
          "conditions": "VEN = VIN = 60V, TA = +25°C",
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        {
          "name": "VCC Output Voltage Range",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 4.65,
          "typ": 5,
          "max": 5.35,
          "conditions": "6V < VIN < 12V, 0mA < IVCC < 10mA, 12V < VIN < 60V, 0mA < IVCC < 2mA",
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        {
          "name": "VCC Current Limit",
          "symbol": "IVCC-MAX",
          "kind": "electrical",
          "unit": "mA",
          "min": 15,
          "typ": 40,
          "max": 80,
          "conditions": "VCC = 4.3V, VIN = 12V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VCC UVLO rising",
          "symbol": "VCC-UVR",
          "kind": "electrical",
          "unit": "V",
          "min": 3.85,
          "typ": 4,
          "max": 4.15,
          "conditions": "VCC rising",
          "source_page": 2,
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        {
          "name": "VCC UVLO falling",
          "symbol": "VCC-UVF",
          "kind": "electrical",
          "unit": "V",
          "min": 3.55,
          "typ": 3.7,
          "max": 3.85,
          "conditions": "VCC falling",
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        {
          "name": "VCC Dropout",
          "symbol": "VCC-DO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 4.1,
          "conditions": "VIN = 4.5V, IVCC = 5mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "High-Side pMOS On-Resistance",
          "symbol": "RDS-ONH",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.55,
          "max": 0.85,
          "conditions": "ILX = 0.5A (sourcing), TA = +25°C",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "High-Side pMOS On-Resistance",
          "symbol": "RDS-ONH",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "ILX = 0.5A (sourcing), TA = TJ = +125°C (Note 3)",
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          "name": "Low-Side nMOS On-Resistance",
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          "max": 0.35,
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          "name": "Low-Side nMOS On-Resistance",
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          "max": 0.47,
          "conditions": "ILX = 0.5A (sinking), TA = TJ = +125°C (Note 3)",
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        {
          "name": "LX Leakage Current",
          "symbol": "ILX_LKG",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VEN = 0V, TA = +25°C, VLX = (VPGND + 1V) to (VIN - 1V)",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Soft-Start Charging Current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "µA",
          "min": 4.7,
          "typ": 5,
          "max": 5.3,
          "conditions": "VSS = 0.5V",
          "source_page": 3,
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        {
          "name": "FB Input Bias Current, MAX17502F",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "µA",
          "min": 6.8,
          "typ": 12,
          "max": 17,
          "conditions": "TA = +25°C, VFB = 5V",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Output Voltage, MAX17502F",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.922,
          "typ": 5,
          "max": 5.08,
          "conditions": "MAX17502F",
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        {
          "name": "Peak Current-Limit Threshold",
          "symbol": "IPEAK-LIMIT",
          "kind": "electrical",
          "unit": "A",
          "min": 1.4,
          "typ": 1.65,
          "max": 1.9,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Runaway Current-Limit Threshold",
          "symbol": "IRUNAWAY-LIMIT",
          "kind": "electrical",
          "unit": "A",
          "min": 1.45,
          "typ": 1.7,
          "max": 2,
          "conditions": "",
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        {
          "name": "Sink Current-Limit Threshold",
          "symbol": "ISINK-LIMIT",
          "kind": "electrical",
          "unit": "A",
          "min": 0.56,
          "typ": 0.65,
          "max": 0.74,
          "conditions": "MAX17502E/F/G/H",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switching Frequency, MAX17502E/F/G",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 560,
          "typ": 600,
          "max": 640,
          "conditions": "VFB > VOUT-HICF, MAX17502E/F/G",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VOUT Undervoltage Trip Level to Cause Hiccup",
          "symbol": "VOUT-HICF",
          "kind": "electrical",
          "unit": "%",
          "min": 69.14,
          "typ": 71.14,
          "max": 73.14,
          "conditions": "VSS > 0.95V (soft-start is done)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum On-Time",
          "symbol": "tON_MIN",
          "kind": "electrical",
          "unit": "ns",
          "min": 75,
          "typ": null,
          "max": 120,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Duty Cycle, MAX17502E/F/G",
          "symbol": "DMAX",
          "kind": "electrical",
          "unit": "%",
          "min": 92,
          "typ": 94,
          "max": 96,
          "conditions": "VFB = 0.98 x VFB-REG, MAX17502E/F/G",
          "source_page": 4,
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        },
        {
          "name": "VOUT Threshold for RESET Falling",
          "symbol": "VOUT-OKF",
          "kind": "electrical",
          "unit": "%",
          "min": 90.5,
          "typ": 92.5,
          "max": 94.5,
          "conditions": "VFB falling",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "VOUT Threshold for RESET Rising",
          "symbol": "VOUT-OKR",
          "kind": "electrical",
          "unit": "%",
          "min": 93.5,
          "typ": 95.5,
          "max": 97.5,
          "conditions": "VFB rising",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "RESET Output Level Low",
          "symbol": "VRESET-LOW",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.02,
          "conditions": "IRESET = 1mA",
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          "source": "datasheet"
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        {
          "name": "RESET Output Leakage Current High",
          "symbol": "IRESET-LKG",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 0.45,
          "conditions": "VFB = 1.01 x VFB-REG, TA = +25°C",
          "source_page": 4,
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        {
          "name": "EN true shutdown threshold",
          "symbol": "VEN-TRUESD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.7,
          "conditions": "VEN falling, true shutdown",
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        {
          "name": "VIN to GND",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 70,
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          "name": "EN/UVLO to GND",
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          "typ": null,
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          "conditions": "Printed maximum is (VIN + 0.3V)",
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          "name": "LX to PGND",
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          "min": -0.3,
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          "max": null,
          "conditions": "Printed maximum is (VIN + 0.3V)",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "FB, RESET, COMP, SS to GND",
          "symbol": "",
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          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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        {
          "name": "VCC to GND",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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        {
          "name": "GND to PGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "",
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        {
          "name": "LX Total RMS Current",
          "symbol": "ILX",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": -1.6,
          "typ": null,
          "max": 1.6,
          "conditions": "Printed as ±1.6A",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
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        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 160,
          "conditions": "",
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        {
          "name": "Lead Temperature (soldering)",
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          "name": "Soldering Temperature (reflow)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "",
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        {
          "name": "Ambient Operating Temperature Range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
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          "name": "Junction Temperature Operating Range",
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