SY58873UFAC

{
  "slug": "sy58873ufac",
  "version": "0.1.0",
  "type": "component",
  "description": "Silergy Corp AC-DC Controllers And Regulators, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "sy58873ufac",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sy58873ufac.kicad_sym",
    "sy58873ufac.kicad_mod",
    "sy58873ufac.glb",
    "sy58873ufac.step",
    "sy58873ufac.lbr",
    "docs/hero.png",
    "docs/sy58873ufac-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sy58873ufac-hero.glb",
    "sy58873ufac-hero.overlay.json",
    "sy58873ufac-etched.glb"
  ],
  "component": {
    "mpn": "SY58873UFAC",
    "manufacturer": "Silergy Corp",
    "package": "SO-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904748137795584",
    "parts": {
      "symbol": "sy58873ufac.kicad_sym",
      "footprint": "sy58873ufac.kicad_mod",
      "model_3d": "sy58873ufac-hero.glb",
      "model_3d_plain": "sy58873ufac-etched.glb",
      "model_3d_step": "sy58873ufac-etched.step",
      "model_3d_step_plain": "sy58873ufac.step",
      "lbr": "sy58873ufac.lbr"
    },
    "distributor_links": {
      "lcsc": "C492737"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T16:07:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "passive",
        "description": "Peak current limit set pin, which also carries the internal GM error amplifier output; the datasheet gives a CS limit of 550 mV (max) and an absolute maximum rating of -0.3 V to 3.6 V."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback pin connected to a resistor divider that senses the boost output; the reference voltage is 1.229 V typ (1.211 V to 1.247 V) and the internal OVP threshold is 1.397 V typ (1.326 V to 1.468 V), with an absolute maximum rating of -0.3 V to 3.6 V."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin for the device."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply pin with a turn-on threshold of 12.9 V to 14.9 V, a turn-off threshold of 6.6 V to 8 V, a shunt voltage of 13.7 V to 15.6 V, and an absolute maximum rating of -0.3 V to 20 V."
      },
      {
        "number": "5",
        "name": "LX",
        "type": "passive",
        "description": "Internal high-voltage MOSFET drain pin, rated for a breakdown voltage of 520 V."
      },
      {
        "number": "6",
        "name": "LX",
        "type": "passive",
        "description": "Internal high-voltage MOSFET drain pin, rated for a breakdown voltage of 520 V."
      },
      {
        "number": "7",
        "name": "LX",
        "type": "passive",
        "description": "Internal high-voltage MOSFET drain pin, rated for a breakdown voltage of 520 V."
      },
      {
        "number": "8",
        "name": "LX",
        "type": "passive",
        "description": "Internal high-voltage MOSFET drain pin, rated for a breakdown voltage of 520 V."
      }
    ],
    "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 is an Application Note (Rev 0.9, confidential), not a full product datasheet. The pino; CS is described as the peak current limit set pin, but the operation section (page 5) says the inter; The source lists LX as one group, pins 5-8. I expanded it into four entries with the same descriptio"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0514,
        "at": "2026-10-18T16:05:21"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904748137795584",
        "pages": 11,
        "sha256": "d3bc4e134b824b06",
        "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": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sy58873ufac-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "419c4d5aa65dbffc5fb5e8746795f9495aeb405283ecf3f48c065731a9852008",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}