RT5789BGJ8F

{
  "slug": "rt5789bgj8f",
  "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)",
    "rt5789bgj8f",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "rt5789bgj8f.kicad_sym",
    "rt5789bgj8f.kicad_mod",
    "rt5789bgj8f.glb",
    "rt5789bgj8f.step",
    "rt5789bgj8f.lbr",
    "docs/hero.png",
    "docs/rt5789bgj8f-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "rt5789bgj8f-hero.glb",
    "rt5789bgj8f-hero.overlay.json"
  ],
  "component": {
    "mpn": "RT5789BGJ8F",
    "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/8590908738368978944",
    "parts": {
      "symbol": "rt5789bgj8f.kicad_sym",
      "footprint": "rt5789bgj8f.kicad_mod",
      "model_3d": "rt5789bgj8f-hero.glb",
      "model_3d_plain": "rt5789bgj8f.glb",
      "model_3d_step": "rt5789bgj8f-etched.step",
      "model_3d_step_plain": "rt5789bgj8f.step",
      "lbr": "rt5789bgj8f.lbr"
    },
    "distributor_links": {
      "lcsc": "C3001127",
      "digikey": "RT5789BGJ8FTR-ND",
      "mouser": "835-RT5789BGJ8F"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T17:14:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "RT5789BGJ8FTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "835-RT5789BGJ8F",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain power-good indication output that is activated only after soft-start is finished."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input with an input voltage range of 2.5V to 6V; connect a bypass capacitor typically greater than 10µF between this pin and PGND, placed as close to the IC as possible."
      },
      {
        "number": "3",
        "name": "LX",
        "type": "power_out",
        "description": "Switch node between the internal switch and the synchronous rectifier; connect the output LC filter from this pin to the output load."
      },
      {
        "number": "4",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground, connected to analog ground, that must be soldered to a large PCB copper area for maximum power dissipation."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "input",
        "description": "Output voltage sense input used to monitor and adjust the output voltage for improved load transient regulation."
      },
      {
        "number": "6",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground providing the return path for control circuitry and the internal reference, to be connected to a clean inner GND point with a separate trace."
      },
      {
        "number": "7",
        "name": "FB",
        "type": "input",
        "description": "Feedback voltage input connected to the midpoint of the external resistive divider; the device regulates FB to a typical 0.6V reference."
      },
      {
        "number": "8",
        "name": "EN",
        "type": "input",
        "description": "Enable control input where a logic-high enables the converter and a logic-low forces shutdown mode."
      }
    ],
    "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: PGOOD is described as open-drain, and LX as a switch node; KiCad has no open-drain class, so 'output; Pin numbers are taken from the 'Functional Pin Description' table on page 3, TSOT-23-8 (FC) column. ; The datasheet gives no numeric limit for AGND. Its description is qualitative only."
        ],
        "pages_sent": 5,
        "cost_usd": 0.0353,
        "at": "2026-10-09T17:11:40"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590908738368978944",
        "pages": 24,
        "sha256": "3724d935031b0e0f",
        "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": "rt5789bgj8f.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": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rt5789bgj8f-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": "a153cfc4964485189de54f6a1706d98683a64a878d5c2211eb36955edfdf8862",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}