RT8816AGQW

{
  "slug": "rt8816agqw",
  "version": "0.1.0",
  "type": "component",
  "description": "Richtek Tech AC-DC Controllers And Regulators, QFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "rt8816agqw",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "rt8816agqw.kicad_sym",
    "rt8816agqw.kicad_mod",
    "rt8816agqw.glb",
    "rt8816agqw.step",
    "rt8816agqw.lbr",
    "docs/hero.png",
    "docs/rt8816agqw-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "rt8816agqw-hero.glb",
    "rt8816agqw-hero.overlay.json",
    "rt8816agqw-etched.glb"
  ],
  "component": {
    "mpn": "RT8816AGQW",
    "manufacturer": "Richtek Tech",
    "package": "QFN-20-EP(3x3)",
    "pin_count": 21,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590234576083202048",
    "parts": {
      "symbol": "rt8816agqw.kicad_sym",
      "footprint": "rt8816agqw.kicad_mod",
      "model_3d": "rt8816agqw-hero.glb",
      "model_3d_plain": "rt8816agqw-etched.glb",
      "model_3d_step": "rt8816agqw-etched.step",
      "model_3d_step_plain": "rt8816agqw.step",
      "lbr": "rt8816agqw.lbr"
    },
    "distributor_links": {
      "lcsc": "C3031674"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T22:48:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BOOT1",
        "type": "power_out",
        "description": "Bootstrap supply for PWM1 that powers the high-side MOSFET driver."
      },
      {
        "number": "2",
        "name": "UGATE1",
        "type": "output",
        "description": "High-side gate driver output of PWM1 that connects to the gate of the converter's high-side MOSFET."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Active-high enable control input; when PVCC powers on, the EN input voltage must not exceed PVCC."
      },
      {
        "number": "4",
        "name": "PSI",
        "type": "input",
        "description": "Power-saving interface that selects the operating mode by voltage level: below 0.4V for 1-phase DEM, 0.7V to 0.88V for 1-phase forced CCM, 1.08V to 1.35V for 2-phase DEM, and 1.6V to 5.5V for 2-phase forced CCM."
      },
      {
        "number": "5",
        "name": "VID",
        "type": "input",
        "description": "Programming input for output voltage control, referenced to the PWM-VID Dynamic Voltage Control section."
      },
      {
        "number": "6",
        "name": "REFADJ",
        "type": "output",
        "description": "Reference adjustment output used in PWM-VID dynamic voltage control."
      },
      {
        "number": "7",
        "name": "REFIN",
        "type": "input",
        "description": "External reference input."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_in",
        "description": "High-precision 2V reference voltage output, referenced to RGND."
      },
      {
        "number": "9",
        "name": "TON",
        "type": "input",
        "description": "On-time and switching-frequency adjustment input; an optional 100pF ceramic capacitor to ground may be added for noise immunity."
      },
      {
        "number": "10",
        "name": "RGND",
        "type": "input",
        "description": "Negative remote sense input that connects to the ground of the output load."
      },
      {
        "number": "11",
        "name": "VSNS",
        "type": "input",
        "description": "Positive remote sense input that connects to the positive terminal of the output load."
      },
      {
        "number": "12",
        "name": "OCSET/SS",
        "type": "passive",
        "description": "Current-limit setting pin: a resistor to GND sets the current-limit threshold, and a capacitor to GND can set the external soft-start time."
      },
      {
        "number": "13",
        "name": "PGOOD",
        "type": "output",
        "description": "Active-high open-drain power-good indicator output."
      },
      {
        "number": "14",
        "name": "UGATE2",
        "type": "output",
        "description": "High-side gate driver output of PWM2 that connects to the gate of the converter's high-side MOSFET."
      },
      {
        "number": "15",
        "name": "BOOT2",
        "type": "power_out",
        "description": "Bootstrap supply for PWM2 that powers the high-side MOSFET driver."
      },
      {
        "number": "16",
        "name": "PHASE2",
        "type": "passive",
        "description": "Switch node for PWM2 that returns the high-side driver current and connects to the high-side MOSFET source, low-side MOSFET drain, and inductor."
      },
      {
        "number": "17",
        "name": "LGATE2",
        "type": "output",
        "description": "Low-side gate driver output of PWM2 that connects to the gate of the converter's low-side MOSFET."
      },
      {
        "number": "18",
        "name": "PVCC",
        "type": "power_in",
        "description": "Supply voltage input that connects to a 5V bias supply and needs a high-quality bypass capacitor to GND."
      },
      {
        "number": "19",
        "name": "LGATE1",
        "type": "output",
        "description": "Low-side gate driver output of PWM1 that connects to the gate of the converter's low-side MOSFET."
      },
      {
        "number": "20",
        "name": "PHASE1",
        "type": "passive",
        "description": "Switch node for PWM1 that returns the high-side driver current and connects to the high-side MOSFET source, low-side MOSFET drain, and inductor."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Ground and exposed pad, which should be soldered to a large PCB area and connected to GND for maximum thermal dissipation."
      }
    ],
    "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 datasheet names the package WQFN-20L 3x3 (ordering code QW), not QFN-20-EP(3x3). The MPN RT8816A; The top-view pin-configuration drawing in the text is garbled, so pin numbers and names were taken f; Pin 21 is the exposed pad, labeled GND in the datasheet; it is listed as a single pin 21 and not as "
        ],
        "pages_sent": 3,
        "cost_usd": 0.0403,
        "at": "2026-10-18T22:46:18"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590234576083202048",
        "pages": 21,
        "sha256": "323f1534d015b905",
        "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": "rt8816agqw.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0ee4e1082236390795238cd34b082d96efd160d6292c636cc40201a5a30cdc63",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rt8816agqw-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "abca18cf54e7f4936610d374bc834ba952b5b3eb2313223f91b7d549717a366e",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}