MP4316GRE-Z

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  "type": "component",
  "slug": "mp4316gre-z",
  "title": "MP4316GRE-Z",
  "brief": "Monolithic Power Systems Power Distribution Switches, QFN-20(4x4). 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)",
    "mp4316gre-z",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "MP4316GRE-Z",
    "manufacturer": "Monolithic Power Systems",
    "package": "QFN-20(4x4)",
    "pin_count": 21,
    "category": "Power Management (PMIC)",
    "subcategory": "Power Distribution Switches",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589042174063759360",
    "parts": {
      "symbol": "mp4316gre-z.kicad_sym",
      "footprint": "mp4316gre-z.kicad_mod",
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      "model_3d_plain": "mp4316gre-z-etched.glb",
      "model_3d_step": "mp4316gre-z-etched.step",
      "model_3d_step_plain": "mp4316gre-z.step",
      "lbr": "mp4316gre-z.lbr"
    },
    "distributor_links": {
      "lcsc": "C3726292",
      "digikey": "1589-MP4316GRE-ZTR-ND",
      "mouser": "946-MP4316GRE-Z"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T00:40:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1589-MP4316GRE-ZTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "946-MP4316GRE-Z",
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    },
    "pins": [
      {
        "number": "1",
        "name": "MODE",
        "type": "input",
        "description": "Mode selection: pull high for forced continuous conduction mode (FCCM), pull low for advanced asynchronous modulation (AAM) mode, and do not float."
      },
      {
        "number": "2",
        "name": "SYNCIN",
        "type": "input",
        "description": "Synchronous input that accepts a 350kHz to 1000kHz clock to synchronize the internal oscillator, and needs a resistor of ≤51kΩ to AGND if the external clock pull-down is insufficient or the pin enters Hi-Z; do not float."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply that powers the internal circuitry and the HS-FET, with a decoupling capacitor placed close to the pin and connected to PGND; the recommended VIN range is 3.3V to 45V."
      },
      {
        "number": "4",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground pin; the datasheet gives no further electrical limits for it."
      },
      {
        "number": "5",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground pin; the datasheet gives no further electrical limits for it."
      },
      {
        "number": "6",
        "name": "BST",
        "type": "power_in",
        "description": "Bootstrap pin that is the positive supply for the HS-FET gate drive, with a bypass capacitor connected between BST and SW."
      },
      {
        "number": "7",
        "name": "SW",
        "type": "output",
        "description": "Switch output, the output of the internal power MOSFETs."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "output",
        "description": "Switch output, the output of the internal power MOSFETs."
      },
      {
        "number": "9",
        "name": "EN",
        "type": "input",
        "description": "Enable: pull above 1V to turn the converter on and below 0.85V to turn it off."
      },
      {
        "number": "10",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground pin; the datasheet gives no further electrical limits for it."
      },
      {
        "number": "11",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground pin; the datasheet gives no further electrical limits for it."
      },
      {
        "number": "12",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply that powers the internal circuitry and the HS-FET, with a decoupling capacitor placed close to the pin and connected to PGND; the recommended VIN range is 3.3V to 45V."
      },
      {
        "number": "13",
        "name": "SYNCO",
        "type": "output",
        "description": "Synchronous output that provides a clock 180° out of phase with the internal oscillator (or the inverse of the SYNCIN clock); float if not used."
      },
      {
        "number": "14",
        "name": "PG",
        "type": "output",
        "description": "Open-drain power good output that requires a pull-up resistor; it is pulled high when VOUT is 95% to 105% of nominal and pulled low when VOUT exceeds 106.5% or drops below 93% of nominal."
      },
      {
        "number": "15",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; float this pin if not used."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_out",
        "description": "Bias supply that provides 4.9V to the internal control circuit and gate drivers, decoupled to AGND with a capacitor placed close to the pin."
      },
      {
        "number": "17",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "18",
        "name": "FB",
        "type": "input",
        "description": "Feedback input connected to the center of the output resistor divider to set VOUT; the feedback voltage VFB is about 0.815V, and the divider should sit as close to FB as possible."
      },
      {
        "number": "19",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start input where a capacitor from SS to AGND sets the soft-start time, with 13µA supplied to the capacitor during start-up."
      },
      {
        "number": "20",
        "name": "FREQ",
        "type": "passive",
        "description": "Switching frequency setting where a resistor from FREQ to AGND sets fSW, using the fSW vs. RFREQ curves on page 15."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "at": "2026-10-21T00:37:57"
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        "pages": 38,
        "sha256": "9709859de77dbb8b",
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      "pins": {
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        "described": 21,
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  "metadata": {
    "specs": {
      "Manufacturer": "Monolithic Power Systems",
      "Package": "QFN-20(4x4)",
      "Category": "Power Management (PMIC)",
      "Pins": "21"
    },
    "characteristics": {
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          "name": "VIN under-voltage lockout (UVLO) rising threshold",
          "symbol": "VIN_UVLO_RISING",
          "kind": "electrical",
          "unit": "V",
          "min": 2.8,
          "typ": 3,
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          "max": 26,
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          "name": "Shutdown current",
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          "source_page": 6,
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          "name": "Feedback (FB) voltage",
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        {
          "name": "FB current",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "nA",
          "min": -50,
          "typ": 0,
          "max": 50,
          "conditions": "VFB = 0.85V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Switching frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 420,
          "typ": 470,
          "max": 520,
          "conditions": "RFREQ = 62kΩ",
          "source_page": 6,
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        {
          "name": "Switching frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 820,
          "typ": 1000,
          "max": 1180,
          "conditions": "RFREQ = 26.1kΩ",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "SYNCIN clock range",
          "symbol": "fSYNC",
          "kind": "electrical",
          "unit": "kHz",
          "min": 350,
          "typ": null,
          "max": 1000,
          "conditions": "External clock",
          "source_page": 6,
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        },
        {
          "name": "SYNCO high voltage",
          "symbol": "VSYNCO_HIGH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.3,
          "typ": 4.5,
          "max": null,
          "conditions": "ISYNCO = -1mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "High-side MOSFET (HS-FET) peak current limit",
          "symbol": "ILIMIT_PEAK",
          "kind": "electrical",
          "unit": "A",
          "min": 10,
          "typ": 13,
          "max": 16,
          "conditions": "30% duty cycle",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Low-side MOSFET (LS-FET) valley current limit",
          "symbol": "ILIMIT_VALLEY",
          "kind": "electrical",
          "unit": "A",
          "min": 8,
          "typ": 10,
          "max": 12,
          "conditions": "",
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        },
        {
          "name": "Zero-current detection (ZCD) current",
          "symbol": "IZCD",
          "kind": "electrical",
          "unit": "A",
          "min": -0.15,
          "typ": 0.1,
          "max": 0.35,
          "conditions": "AAM mode",
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        {
          "name": "LS reverse current limit",
          "symbol": "ILIMIT_REVERSE",
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          "min": 2,
          "typ": 4.5,
          "max": 7,
          "conditions": "FCCM",
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        {
          "name": "Switch leakage current",
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          "kind": "electrical",
          "unit": "µA",
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          "typ": 0.01,
          "max": 1,
          "conditions": "",
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        {
          "name": "HS-FET on resistance",
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          "kind": "electrical",
          "unit": "mΩ",
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          "typ": 48,
          "max": 80,
          "conditions": "VBST - VSW = 5V",
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          "conditions": "VSS = 0V",
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          "name": "EN rising threshold",
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          "kind": "electrical",
          "unit": "V",
          "min": 0.8,
          "typ": 1,
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        {
          "name": "EN falling threshold",
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          "unit": "V",
          "min": 0.65,
          "typ": 0.85,
          "max": 1.05,
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        {
          "name": "PG rising threshold",
          "symbol": "VPG_RISING",
          "kind": "electrical",
          "unit": "% of VREF",
          "min": 92,
          "typ": 95,
          "max": 98,
          "conditions": "VFB rising, VFB / VREF",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "PG rising threshold",
          "symbol": "VPG_RISING",
          "kind": "electrical",
          "unit": "% of VREF",
          "min": 102,
          "typ": 105,
          "max": 108,
          "conditions": "VFB falling, VFB / VREF",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "PG falling threshold",
          "symbol": "VPG_FALLING",
          "kind": "electrical",
          "unit": "% of VREF",
          "min": 90.5,
          "typ": 93.5,
          "max": 96.5,
          "conditions": "VFB falling, VFB / VREF",
          "source_page": 7,
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        {
          "name": "PG falling threshold",
          "symbol": "VPG_FALLING",
          "kind": "electrical",
          "unit": "% of VREF",
          "min": 103.5,
          "typ": 106.5,
          "max": 109.5,
          "conditions": "VFB rising, VFB / VREF",
          "source_page": 7,
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        {
          "name": "PG output low voltage",
          "symbol": "VPG_LOW",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.1,
          "max": 0.3,
          "conditions": "ISINK = 1mA",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VIN, EN absolute maximum voltage",
          "symbol": "",
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          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 5,
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        {
          "name": "SW absolute maximum voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
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          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "All other pins absolute maximum voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
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        {
          "name": "Operating junction temperature",
          "symbol": "",
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          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
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        {
          "name": "Storage temperature",
          "symbol": "",
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          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
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        },
        {
          "name": "ESD Human body model (HBM)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "",
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        {
          "name": "ESD Charged device model (CDM)",
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          "min": 3.3,
          "typ": null,
          "max": 45,
          "conditions": "",
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        {
          "name": "Output voltage (VOUT)",
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          "min": 0.815,
          "typ": null,
          "max": null,
          "conditions": "",
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          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
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          "name": "Thermal resistance junction-to-case, QFN-20 (4mmx4mm)",
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          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 9,
          "max": null,
          "conditions": "JESD51-7",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-to-case, EVQ4316-R-00A board",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 2.5,
          "max": null,
          "conditions": "EVQ4316-R-00A",
          "source_page": 5,
          "source": "datasheet"
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  }
}