RT8129AGQW

{
  "slug": "rt8129agqw",
  "version": "0.1.0",
  "type": "component",
  "description": "Richtek Tech DC-DC Controllers, TDFN-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "rt8129agqw",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "rt8129agqw.kicad_sym",
    "rt8129agqw.kicad_mod",
    "rt8129agqw.glb",
    "rt8129agqw.step",
    "rt8129agqw.lbr",
    "docs/hero.png",
    "docs/rt8129agqw-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "rt8129agqw-hero.glb",
    "rt8129agqw-hero.overlay.json",
    "rt8129agqw-etched.glb"
  ],
  "component": {
    "mpn": "RT8129AGQW",
    "manufacturer": "Richtek Tech",
    "package": "TDFN-10-EP(3x3)",
    "pin_count": 11,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Controllers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/fa71907551b14047d0435e715617c2f3.pdf",
    "parts": {
      "symbol": "rt8129agqw.kicad_sym",
      "footprint": "rt8129agqw.kicad_mod",
      "model_3d": "rt8129agqw-hero.glb",
      "model_3d_plain": "rt8129agqw-etched.glb",
      "model_3d_step": "rt8129agqw-etched.step",
      "model_3d_step_plain": "rt8129agqw.step",
      "lbr": "rt8129agqw.lbr"
    },
    "distributor_links": {
      "lcsc": "C3249955"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:24:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BOOT",
        "type": "power_in",
        "description": "Bootstrap supply for the high-side gate driver, connected to VCC through a bootstrap diode with a 0.1µF or greater ceramic capacitor to PHASE."
      },
      {
        "number": "2",
        "name": "PHASE",
        "type": "passive",
        "description": "Switch node connected to the high-side MOSFET source, low-side MOSFET drain and inductor, sensed for zero-current detection and over-current protection while the low-side MOSFET is on."
      },
      {
        "number": "3",
        "name": "UGATE",
        "type": "output",
        "description": "High-side MOSFET gate driver output, connected to the gate of the high-side MOSFET."
      },
      {
        "number": "4",
        "name": "LGATE/OCSET",
        "type": "bidirectional",
        "description": "Low-side MOSFET gate driver output that also sets the current limit threshold through a resistor (ROCSET) to GND."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; pin 5 is tied to the exposed pad, which must be soldered to a large PCB ground area for maximum power dissipation."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input (4.5V to 13.2V recommended) that also powers the low-side gate driver, with a 4.7µF ceramic capacitor to GND recommended."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Enable control input: above 2V turns the controller on, below 0.8V turns it off, and it is pulled high internally if left open."
      },
      {
        "number": "8",
        "name": "FB",
        "type": "input",
        "description": "Output voltage feedback input, also monitored for power good, over-voltage and under-voltage protection, connected to the output through a resistor divider."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "10",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain power good output requiring a pull-up resistor, high when the output is in regulation, and may be left open if unused."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed pad ground, to be soldered to a large PCB ground area for maximum power dissipation."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-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 covers only WDFN-10L 3x3 (suffix QW, W-Type, exposed pad), not a package named TDFN-10; Pin types are inferred from the pin descriptions. BOOT is marked power_in, PHASE passive, and LGATE/"
        ],
        "pages_sent": 18,
        "cost_usd": 0.1691,
        "at": "2026-10-22T22:24:02"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/fa71907551b14047d0435e715617c2f3.pdf",
        "pages": 18,
        "sha256": "18c827b01f6fdd16",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "rt8129agqw.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          2.98,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "738e2eb45860c11759f8e4f44ab26932b7c15e4d5d6c8c9ac22ae866a3e38711",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rt8129agqw-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ecce11043101210626552fe6c7a2869a18ba39359ca5a8ff2add16b78352f6b2",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}