TD8303X

{
  "slug": "td8303x",
  "version": "0.1.0",
  "type": "component",
  "description": "Shenzhen JingYang DC-DC Converters, ESOP-8L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "td8303x",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "td8303x.kicad_sym",
    "td8303x.kicad_mod",
    "td8303x.glb",
    "td8303x.step",
    "td8303x.lbr",
    "docs/hero.png",
    "docs/td8303x-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "td8303x-hero.glb",
    "td8303x-hero.overlay.json",
    "td8303x-etched.glb"
  ],
  "component": {
    "mpn": "TD8303X",
    "manufacturer": "Shenzhen JingYang",
    "package": "ESOP-8L",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590236127190941696",
    "parts": {
      "symbol": "td8303x.kicad_sym",
      "footprint": "td8303x.kicad_mod",
      "model_3d": "td8303x-hero.glb",
      "model_3d_plain": "td8303x-etched.glb",
      "model_3d_step": "td8303x-etched.step",
      "model_3d_step_plain": "td8303x.step",
      "lbr": "td8303x.lbr"
    },
    "distributor_links": {
      "lcsc": "C3038118"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T12:01:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BST",
        "type": "passive",
        "description": "High-side gate drive boost input that supplies the high-side N-channel MOSFET drive; connect a 0.01µF or greater capacitor from SW to BST."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input for the IC and the buck converter, supplied with 4.5V to 30V; bypass to GND with a large capacitor plus at least 0.1µF ceramic."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "output",
        "description": "Power switching output node that supplies power to the output through the LC filter; a capacitor from SW to BST is required to power the high-side switch."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Feedback input that senses the output voltage via a resistor divider from output to ground; sensitive node, keep away from SW, VIN and BST."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "passive",
        "description": "Current sense for line compensation and current limitation."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Enable input: drive high to turn the regulator on, low to turn it off; attach to VIN with a 100kΩ pull-up resistor for automatic soft-startup."
      },
      {
        "number": "8",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start adjustment: connect a capacitor to program soft-start time; default soft-start is 1ms if the pin is floating."
      },
      {
        "number": "9",
        "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-sonnet-5-5",
        "primary_mode": "vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The package drawing shows an unnumbered exposed pad on the backside, and the pin table gives it no f; Pin 1 is labelled BS in the package drawing and BST in the pin table and schematic. I used BST.; The datasheet does not give pin types. BST, COMP and SS are set to passive and SW to output. These a",
          "exposed pad 9 added from the footprint",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 9,
        "cost_usd": 0.2367,
        "at": "2026-10-18T11:58:44"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590236127190941696",
        "pages": 9,
        "sha256": "756052e7cbdc4f48",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "td8303x.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "td8303x-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6a658de1cd5517c8f430fcac4b976b2890407fb94d513a0a9ea8e8c3525ae7eb",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}