RT8110BGJ8

{
  "slug": "rt8110bgj8",
  "version": "0.1.0",
  "type": "component",
  "description": "Richtek Tech DC-DC Converters, TSOT-23-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "rt8110bgj8",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "rt8110bgj8.kicad_sym",
    "rt8110bgj8.kicad_mod",
    "rt8110bgj8.glb",
    "rt8110bgj8.step",
    "rt8110bgj8.lbr",
    "docs/hero.png",
    "docs/rt8110bgj8-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "rt8110bgj8-hero.glb",
    "rt8110bgj8-hero.overlay.json",
    "rt8110bgj8-etched.glb"
  ],
  "component": {
    "mpn": "RT8110BGJ8",
    "manufacturer": "Richtek Tech",
    "package": "TSOT-23-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586202478362963968",
    "parts": {
      "symbol": "rt8110bgj8.kicad_sym",
      "footprint": "rt8110bgj8.kicad_mod",
      "model_3d": "rt8110bgj8-hero.glb",
      "model_3d_plain": "rt8110bgj8-etched.glb",
      "model_3d_step": "rt8110bgj8-etched.step",
      "model_3d_step_plain": "rt8110bgj8.step",
      "lbr": "rt8110bgj8.lbr"
    },
    "distributor_links": {
      "lcsc": "C27917"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T09:10:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_out",
        "description": "Internal regulator output, typically 5.5V, that serves as the main bias supply and low-side gate driver supply and must be decoupled with a ceramic capacitor; it is monitored for power-on reset."
      },
      {
        "number": "2",
        "name": "LGATE",
        "type": "output",
        "description": "Gate drive output for the low-side MOSFET."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Signal and power ground of the IC; all voltage levels are referenced to this pin."
      },
      {
        "number": "4",
        "name": "UGATE",
        "type": "output",
        "description": "Gate drive output for the high-side MOSFET."
      },
      {
        "number": "5",
        "name": "BOOT",
        "type": "power_in",
        "description": "Supplies the high-side MOSFET gate driver through a bootstrap circuit; absolute maximum rating is 34V."
      },
      {
        "number": "6",
        "name": "PHASE",
        "type": "passive",
        "description": "Switching node of the buck converter, also used to sense the low-side MOSFET voltage drop for overcurrent protection; absolute maximum range is -3V to 29V."
      },
      {
        "number": "7",
        "name": "VIN",
        "type": "power_in",
        "description": "Connected to the integrated BJT collector that regulates VIN to 5.5V for VCC; designed to withstand 28V with a recommended input range of 10V to 28V."
      },
      {
        "number": "8",
        "name": "FB",
        "type": "input",
        "description": "Inverting input of the error amplifier, connected to the output voltage divider; falling below the 0.5V typical threshold trips under voltage protection."
      }
    ],
    "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: BOOT and PHASE have no explicit ERC type in the datasheet; types were chosen from their described fu; The top-view pin diagram is not in the extracted text; pin numbers were taken from the Functional Pi"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0598,
        "at": "2026-10-18T09:09:50"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586202478362963968",
        "pages": 13,
        "sha256": "a7b40ad0ae942f8f",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "rt8110bgj8.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          0.95
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dc644a91883054d8f75e38542e63c2050dc8f2e8b7f12e1c57dcd93245fbd473",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rt8110bgj8-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          0.95
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "fce52e8d9234b98e01567389b9649b20c385880fe0086a031e073002f4d3db4d",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}