MP9928GL-Z

{
  "slug": "mp9928gl-z",
  "version": "0.1.0",
  "type": "component",
  "description": "Monolithic Power Systems MPS Global Sourcing Parts, QFN-20(3x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "global sourcing parts",
    "mp9928gl-z",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mp9928gl-z.kicad_sym",
    "mp9928gl-z.kicad_mod",
    "mp9928gl-z.glb",
    "mp9928gl-z.step",
    "mp9928gl-z.lbr",
    "docs/hero.png",
    "docs/mp9928gl-z-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mp9928gl-z-hero.glb",
    "mp9928gl-z-hero.overlay.json",
    "mp9928gl-z-etched.glb"
  ],
  "component": {
    "mpn": "MP9928GL-Z",
    "manufacturer": "Monolithic Power Systems MPS",
    "package": "QFN-20(3x4)",
    "pin_count": 21,
    "category": "Global Sourcing Parts",
    "subcategory": "Global Sourcing Parts",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588883525089443840",
    "parts": {
      "symbol": "mp9928gl-z.kicad_sym",
      "footprint": "mp9928gl-z.kicad_mod",
      "model_3d": "mp9928gl-z-hero.glb",
      "model_3d_plain": "mp9928gl-z-etched.glb",
      "model_3d_step": "mp9928gl-z-etched.step",
      "model_3d_step_plain": "mp9928gl-z.step",
      "lbr": "mp9928gl-z.lbr"
    },
    "distributor_links": {
      "lcsc": "C357778"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T19:04:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC2",
        "type": "power_in",
        "description": "External supply input for the internal VCC1 regulator; it disables the VIN-powered regulator when above 4.7V and must not exceed 12V."
      },
      {
        "number": "2",
        "name": "VCC1",
        "type": "power_out",
        "description": "Internal bias supply output that needs a 1µF or greater ceramic decoupling capacitor, with no more than 4.7µF."
      },
      {
        "number": "3",
        "name": "SGND",
        "type": "power_in",
        "description": "Low-noise signal ground reference for the controller."
      },
      {
        "number": "4",
        "name": "SS",
        "type": "input",
        "description": "Soft-start control input, where an external capacitor from SS to SGND sets the soft-start period using the 4µA charge current."
      },
      {
        "number": "5",
        "name": "COMP",
        "type": "passive",
        "description": "Error amplifier compensation node, where an RC network from COMP to GND compensates the regulation loop."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Feedback input to the error amplifier, where the output divider to GND is compared to the internal 0.8V reference."
      },
      {
        "number": "7",
        "name": "CCM/AAM",
        "type": "input",
        "description": "Mode select pin: tied to VCC1 or floating selects CCM, while a resistor to GND sets AAM with VAAM no less than 480mV."
      },
      {
        "number": "8",
        "name": "FREQ",
        "type": "passive",
        "description": "A resistor between FREQ and GND sets the switching frequency."
      },
      {
        "number": "9",
        "name": "PG",
        "type": "output",
        "description": "Open-drain power-good output that is pulled low when the output is outside about ±10% of nominal and should be pulled up to no more than 5V through a resistor."
      },
      {
        "number": "10",
        "name": "ILIM",
        "type": "input",
        "description": "Current-sense limit select with three fixed settings: GND gives 25mV, VCC1 gives 50mV, and floating gives 75mV."
      },
      {
        "number": "11",
        "name": "SYNCO",
        "type": "output",
        "description": "Outputs a clock 180° out of phase with the internal or external sync clock in CCM or DCM (not Sleep mode) for dual-channel co-pack, and a DC voltage in other modes."
      },
      {
        "number": "12",
        "name": "SENSE-",
        "type": "input",
        "description": "Negative input for current sensing, with the limit threshold set by the ILIM pin."
      },
      {
        "number": "13",
        "name": "SENSE+",
        "type": "input",
        "description": "Positive input for current sensing, with the limit threshold set by the ILIM pin."
      },
      {
        "number": "14",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for the internal low-side driver and VCC1 regulator, to be connected directly to the negative terminal of the VCC1 decoupling capacitor."
      },
      {
        "number": "15",
        "name": "BG",
        "type": "output",
        "description": "Bottom gate driver output that connects to the gate of the synchronous N-channel MOSFET."
      },
      {
        "number": "16",
        "name": "SW",
        "type": "passive",
        "description": "Switch node that serves as the reference for the VBST supply and the high-current return for the bootstrapped switch."
      },
      {
        "number": "17",
        "name": "TG",
        "type": "output",
        "description": "Top gate drive output for the top N-channel MOSFET, driven from the BST capacitor and returned to SW."
      },
      {
        "number": "18",
        "name": "BST",
        "type": "power_in",
        "description": "Bootstrap positive supply for the floating high-side driver, with a bypass capacitor to SW and a diode from VCC1 charging it."
      },
      {
        "number": "19",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply for the 4V to 60V operating range, with a ceramic capacitor needed to prevent large voltage spikes at the input."
      },
      {
        "number": "20",
        "name": "EN/SYNC",
        "type": "input",
        "description": "Enable input with 1.22V rising threshold and 130mV hysteresis, which also accepts an external sync clock that the internal oscillator follows."
      },
      {
        "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 QFN-20 pin table lists 20 numbered pins only. The package drawing mentions an exposed paddle but; Pin types for SW (passive), BST (power_in), COMP and FREQ (passive) were chosen from the functional ",
          "exposed pad 21 added from the footprint"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0831,
        "at": "2026-10-18T19:02:21"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588883525089443840",
        "pages": 25,
        "sha256": "61fba8c327700363",
        "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": "mp9928gl-z.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9305bb1f2217b3a3c4923c5aad9089084cd988b0009a6b8028004dfc00dac347",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mp9928gl-z-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ac243fc3bda7037a54b02c49280c3cc3f04875fcceb955459b4e6bf63c7329fd",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}