EG1252E

{
  "slug": "eg1252e",
  "version": "0.1.0",
  "type": "component",
  "description": "EG Micro AC-DC Controllers And Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "eg1252e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "eg1252e.kicad_sym",
    "eg1252e.kicad_mod",
    "eg1252e.glb",
    "eg1252e.step",
    "eg1252e.lbr",
    "docs/hero.png",
    "docs/eg1252e-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "eg1252e-hero.glb",
    "eg1252e-hero.overlay.json",
    "eg1252e-etched.glb"
  ],
  "component": {
    "mpn": "EG1252E",
    "manufacturer": "EG Micro",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/8b9fd7a224cca39dd2ac5cb2b3e5f957.pdf",
    "parts": {
      "symbol": "eg1252e.kicad_sym",
      "footprint": "eg1252e.kicad_mod",
      "model_3d": "eg1252e-hero.glb",
      "model_3d_plain": "eg1252e-etched.glb",
      "model_3d_step": "eg1252e-etched.step",
      "model_3d_step_plain": "eg1252e.step",
      "lbr": "eg1252e.lbr"
    },
    "distributor_links": {
      "lcsc": "C48580023"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T02:39:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "FB",
        "type": "input",
        "description": "Feedback input whose voltage, together with the current-sense signal, determines the PWM duty cycle; low-voltage port absolute maximum is 6 V."
      },
      {
        "number": "2",
        "name": "BO",
        "type": "input",
        "description": "Input voltage detection pin for input undervoltage protection, with a 1 V protection threshold and a 5 µA internal pull-down active below 1 V; low-voltage port absolute maximum is 6 V."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "Current-sense input that senses the voltage across the current-sense resistor for cycle-by-cycle current limiting (Vcs(max) 0.92 to 1.08 V, 80 ns leading-edge blanking); low-voltage port absolute maximum is 6 V."
      },
      {
        "number": "4",
        "name": "RI",
        "type": "passive",
        "description": "Oscillator frequency-setting pin, where a resistor connected to GND sets the PWM frequency per Fosc(kHz) = 4300 / RI(kΩ); low-voltage port absolute maximum is 6 V."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "Gate drive output for the external power MOSFET, rated from -0.3 V to VCC+0.3 V, with output voltage clamped to 18 V when VCC exceeds 20 V."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin with an absolute maximum of 32 V and an internal zener clamp of 37 V at 10 mA (clamp current maximum 10 mA)."
      },
      {
        "number": "8",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start pin where an external capacitor is charged by an internal 10 µA source and discharged by the internal switch during undervoltage; low-voltage port absolute maximum is 6 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: Pin numbers and names come from the pin definition table on page 5 (pin 1 FB through pin 8 SS), whic; The datasheet is in Chinese. Descriptions are translated into English and condensed, and the figures; RI and SS are typed as passive because they connect to external timing resistor and soft-start capac"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0408,
        "at": "2026-10-15T02:39:13"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/8b9fd7a224cca39dd2ac5cb2b3e5f957.pdf",
        "pages": 11,
        "sha256": "8048eac31bb2b0b5",
        "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": "eg1252e.step",
        "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": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "eg1252e-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": "f5f63d3cf916c88f11c84a8bcd6a16d750373a7d2a315e6532e4f91f00e1de54",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}