MP4316GRE-Z

{
  "slug": "mp4316gre-z",
  "version": "0.1.0",
  "type": "component",
  "description": "Monolithic Power Systems Power Distribution Switches, QFN-20(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "mp4316gre-z",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mp4316gre-z.kicad_sym",
    "mp4316gre-z.kicad_mod",
    "mp4316gre-z.glb",
    "mp4316gre-z.step",
    "mp4316gre-z.lbr",
    "docs/hero.png",
    "docs/mp4316gre-z-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mp4316gre-z-hero.glb",
    "mp4316gre-z-hero.overlay.json",
    "mp4316gre-z-etched.glb"
  ],
  "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",
      "model_3d": "mp4316gre-z-hero.glb",
      "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",
        "status": "found"
      }
    },
    "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)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The page-3 pin map text is scrambled, so pin numbers were taken from the Pin Functions table on page; The provided pages do not show an exposed thermal pad designator or pad-to-pin mapping for the QFN-2; Pin types were assigned from KiCad ERC classes based on the function descriptions (e.g., BST as powe"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0452,
        "at": "2026-10-21T00:37:57"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589042174063759360",
        "pages": 38,
        "sha256": "9709859de77dbb8b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mp4316gre-z.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mp4316gre-z-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9835d4995ea0fa61ab50cb45836b9e16ccdc0778713e19dd147f78e6e28ae58f",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}