MAX16993ATJA

{
  "schema_version": 1,
  "type": "component",
  "slug": "max16993atja",
  "title": "MAX16993ATJA",
  "brief": "Analog Devices Inc Maxim Integrated DC-DC Converters, TQFN-32-EP(5x5). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "max16993atja"
  ],
  "component": {
    "mpn": "MAX16993ATJA",
    "manufacturer": "Analog Devices Inc Maxim Integrated",
    "package": "TQFN-32-EP(5x5)",
    "pin_count": 33,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588951630598955008",
    "parts": {
      "symbol": "max16993atja.kicad_sym",
      "footprint": "max16993atja.kicad_mod",
      "model_3d": "max16993atja-etched.glb",
      "model_3d_plain": "max16993atja.glb",
      "model_3d_step": "max16993atja-etched.step",
      "model_3d_step_plain": "max16993atja.step",
      "lbr": "max16993atja.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "PV1",
        "type": "power_in",
        "description": "Supply input for Buck 1 low-side gate drive. Bypass to GND with ≥0.1µF ceramic capacitor. Range -0.3V to +6.0V."
      },
      {
        "number": "2",
        "name": "DL1",
        "type": "output",
        "description": "Low-side gate-drive output for Buck 1. Swings from GND to VPV1 (~5V)."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground for Buck 1 driver stage. Tie to the system ground plane along with PGND2, PGND3, and EP."
      },
      {
        "number": "4",
        "name": "LX1",
        "type": "passive",
        "description": "Buck 1 inductor / switching node. Connect to the switched side of the external inductor; also serves as the return rail for the DH1 high-side driver. Range -6.0V to VSUP+6.0V."
      },
      {
        "number": "5",
        "name": "DH1",
        "type": "output",
        "description": "High-side gate-drive output for Buck 1. Swings from VLX1 to VBST1 (bootstrapped ~5V above LX1)."
      },
      {
        "number": "6",
        "name": "BST1",
        "type": "passive",
        "description": "Bootstrap capacitor connection for the Buck 1 high-side gate drive. Connect a high-voltage diode from BIAS to BST1 and a ceramic capacitor between BST1 and LX1. BST1-LX1 range -0.3V to +6.0V."
      },
      {
        "number": "7",
        "name": "VSUP",
        "type": "power_in",
        "description": "Main high-voltage supply input. Operating range 3.5V to 36V continuous (42V load-dump). Bypass with ≥0.1µF close to the pin."
      },
      {
        "number": "8",
        "name": "EN1",
        "type": "input",
        "description": "High-voltage-tolerant active-high digital enable for Buck 1. Drive high to enable OUT1. Rated -0.3V to +45V."
      },
      {
        "number": "9",
        "name": "BIAS",
        "type": "power_out",
        "description": "5V internal LDO output that powers the internal circuitry. Bypass to GND with ≥2.2µF low-ESR ceramic. Typ 5.0V (4.6V-5.4V)."
      },
      {
        "number": "10",
        "name": "PV",
        "type": "power_in",
        "description": "Analog supply. Connect to BIAS through a ~10Ω resistor and to GND through a 1µF ceramic capacitor."
      },
      {
        "number": "11",
        "name": "FB1",
        "type": "input",
        "description": "Buck 1 feedback input. In fixed-output variants tie FB1 to BIAS or GND to select factory-trimmed voltage; in adjustable option (ordered here) connect a resistor divider from OUT1, regulated to 1.0V (typ)."
      },
      {
        "number": "12",
        "name": "CS1",
        "type": "input",
        "description": "Positive current-sense input for Buck 1. Connect to the positive terminal of the external current-sense resistor. Current-limit threshold VCS1-VOUT1 = 120mV typ."
      },
      {
        "number": "13",
        "name": "OUT1",
        "type": "input",
        "description": "Buck 1 output-voltage sense and negative current-sense input. Connect to the negative terminal of the sense resistor / OUT1 rail; also powers/references PV2 and PV3 in the cascaded topology."
      },
      {
        "number": "14",
        "name": "EN2",
        "type": "input",
        "description": "Active-high digital enable input for Buck 2. Drive high to enable OUT2."
      },
      {
        "number": "15",
        "name": "EN3",
        "type": "input",
        "description": "Active-high digital enable input for Buck 3. Drive high to enable OUT3."
      },
      {
        "number": "16",
        "name": "OUT3",
        "type": "input",
        "description": "Buck 3 output voltage-sense input. In adjustable mode (this option) connect through a resistor divider from VOUT3."
      },
      {
        "number": "17",
        "name": "RESET3",
        "type": "output",
        "description": "Open-drain Buck 3 reset output. Asserted low while VOUT3 is out of regulation and for the programmed active timeout after regulation. Pull up to a rail ≤5V."
      },
      {
        "number": "18",
        "name": "PV3",
        "type": "power_in",
        "description": "Buck 3 power input. Connect to OUT1 with a ≥2.2µF ceramic capacitor to PGND3. Range -0.3V to +6.0V."
      },
      {
        "number": "19",
        "name": "LX3",
        "type": "passive",
        "description": "Buck 3 switching node (drain of internal HS/LS FETs). High impedance when Buck 3 is disabled."
      },
      {
        "number": "20",
        "name": "PGND3",
        "type": "power_in",
        "description": "Power ground return for the Buck 3 internal FETs. Must be within ±0.3V of GND."
      },
      {
        "number": "21",
        "name": "PGND2",
        "type": "power_in",
        "description": "Power ground return for the Buck 2 internal FETs. Must be within ±0.3V of GND."
      },
      {
        "number": "22",
        "name": "LX2",
        "type": "passive",
        "description": "Buck 2 switching node (drain of internal HS/LS FETs). High impedance when Buck 2 is disabled."
      },
      {
        "number": "23",
        "name": "PV2",
        "type": "power_in",
        "description": "Buck 2 power input. Connect to OUT1 with a ≥2.2µF ceramic capacitor to PGND2. Range -0.3V to +6.0V."
      },
      {
        "number": "24",
        "name": "RESET2",
        "type": "output",
        "description": "Open-drain Buck 2 reset output. Asserted low until VOUT2 has been in regulation for the programmed active timeout. Pull up to a rail ≤5V."
      },
      {
        "number": "25",
        "name": "OUT2",
        "type": "input",
        "description": "Buck 2 output voltage-sense input. In adjustable mode (this option) connect through a resistor divider from VOUT2."
      },
      {
        "number": "26",
        "name": "CSEL1",
        "type": "input",
        "description": "Buck 1 clock select. Tie to GND for 2.1MHz operation; tie to BIAS for the OTP-programmed divide-down (e.g., 1.05MHz/525kHz/420kHz/350kHz per Selector Guide)."
      },
      {
        "number": "27",
        "name": "SSEN",
        "type": "input",
        "description": "Spread-spectrum enable. Tie to GND for a standard oscillator; tie to BIAS to enable ±3% (0 to +6%) spread-spectrum modulation of fSW."
      },
      {
        "number": "28",
        "name": "RESET1",
        "type": "output",
        "description": "Open-drain Buck 1 reset output. Asserted low until VOUT1 has been in regulation for the programmed active timeout. Pull up to a rail ≤5V."
      },
      {
        "number": "29",
        "name": "GND",
        "type": "power_in",
        "description": "Analog ground reference for the controller and internal circuitry."
      },
      {
        "number": "30",
        "name": "COMP1",
        "type": "passive",
        "description": "Buck 1 error-amplifier compensation node. Connect an external R-C network to GND to set the loop response (see Compensation Network section)."
      },
      {
        "number": "31",
        "name": "ERR",
        "type": "output",
        "description": "Open-drain error-status output. Asserts low on a thermal-warning / thermal-shutdown event. Pull up to a rail ≤5V."
      },
      {
        "number": "32",
        "name": "SYNC",
        "type": "input",
        "description": "External clock synchronization input. Leave open or tie to GND for skip-mode; tie to BIAS or drive with an external 1.7-2.4MHz clock for forced-PWM fixed-frequency operation."
      },
      {
        "number": "33",
        "name": "EP",
        "type": "power_in",
        "description": "Exposed thermal pad on the package underside. Connect to the ground plane for heat removal. Does not replace the PGND2/PGND3/GND connections."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588951630598955008",
        "pages": null,
        "sha256": "e7f77665b839feb1",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-10-07",
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      {
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        "role": "eda",
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        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices Inc Maxim Integrated",
      "Package": "TQFN-32-EP(5x5)",
      "Category": "Power Management (PMIC)",
      "Pins": "33"
    }
  },
  "variants": [
    {
      "mpn": "MAX16993ATJA+",
      "kind": "packaging"
    },
    {
      "mpn": "MAX16993ATJA/V+",
      "kind": "packaging"
    },
    {
      "mpn": "MAX16993ATJAAGJA/VY+",
      "kind": "packaging"
    }
  ],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
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  "discovery_pitch": "MAX16993ATJA (Analog Devices Inc Maxim Integrated) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
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  "updated_at": "2026-09-28T18:26:25.894Z"
}