SY50281AAC

{
  "slug": "sy50281aac",
  "version": "0.1.0",
  "type": "component",
  "description": "Silergy Corp AC-DC Controllers And Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "sy50281aac",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sy50281aac.kicad_sym",
    "sy50281aac.kicad_mod",
    "sy50281aac.glb",
    "sy50281aac.step",
    "sy50281aac.lbr",
    "docs/hero.png",
    "docs/sy50281aac-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sy50281aac-hero.glb",
    "sy50281aac-hero.overlay.json",
    "sy50281aac-etched.glb"
  ],
  "component": {
    "mpn": "SY50281AAC",
    "manufacturer": "Silergy Corp",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911189514997760",
    "parts": {
      "symbol": "sy50281aac.kicad_sym",
      "footprint": "sy50281aac.kicad_mod",
      "model_3d": "sy50281aac-hero.glb",
      "model_3d_plain": "sy50281aac-etched.glb",
      "model_3d_step": "sy50281aac-etched.step",
      "model_3d_step_plain": "sy50281aac.step",
      "lbr": "sy50281aac.lbr"
    },
    "distributor_links": {
      "lcsc": "C340251"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T16:37:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VSEN",
        "type": "input",
        "description": "Voltage sense pin that connects to a resistor divider on the inductor or auxiliary winding to sense output voltage, with absolute maximum rating of -0.3V to 17V and internal reference of 1.25V typical (1.215V to 1.285V)."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply pin with recommended operating range of 8V to 15.4V and absolute maximum of -0.3V to 17V and 20mA input current."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin for the controller."
      },
      {
        "number": "4",
        "name": "ISET",
        "type": "passive",
        "description": "Current set pin where a resistor programs the reference output current, with absolute maximum of -0.3V to 3.6V and reference voltage VREF of 675mV typical (620mV to 710mV)."
      },
      {
        "number": "5",
        "name": "LX",
        "type": "output",
        "description": "Internal high-voltage MOSFET drain pin rated for 500V breakdown voltage, with absolute maximum drain current of 1.4A."
      }
    ],
    "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 SY50281AAC is listed in the ordering table as package SOT23-5 (page 1), and the pinout (page 2) ; KiCad pin types were not stated by the source and were inferred from function: VSEN is an input sens; Pin 5 LX is described in the source only as the internal HV MOSFET drain; the 500V and 1.4A figures "
        ],
        "pages_sent": 12,
        "cost_usd": 0.0515,
        "at": "2026-10-18T16:35:08"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911189514997760",
        "pages": 12,
        "sha256": "b5a1ca616f8ad540",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sy50281aac.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sy50281aac-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7ac9d63286a62d6b9fac6528c9ee8fa829ecba563bdb27eb67ad7a28765146b8",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}