MD8933ESF4

{
  "slug": "md8933esf4",
  "version": "0.1.0",
  "type": "component",
  "description": "Shanghai Mingda Microelectronics DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "md8933esf4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "md8933esf4.kicad_sym",
    "md8933esf4.kicad_mod",
    "md8933esf4.glb",
    "md8933esf4.step",
    "md8933esf4.lbr",
    "docs/hero.png",
    "docs/md8933esf4-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "md8933esf4-hero.glb",
    "md8933esf4-hero.overlay.json",
    "md8933esf4-etched.glb"
  ],
  "component": {
    "mpn": "MD8933ESF4",
    "manufacturer": "Shanghai Mingda Microelectronics",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/41ada8ef90c17ba2c18fc411b2995649.pdf",
    "parts": {
      "symbol": "md8933esf4.kicad_sym",
      "footprint": "md8933esf4.kicad_mod",
      "model_3d": "md8933esf4-hero.glb",
      "model_3d_plain": "md8933esf4-etched.glb",
      "model_3d_step": "md8933esf4-etched.step",
      "model_3d_step_plain": "md8933esf4.step",
      "lbr": "md8933esf4.lbr"
    },
    "distributor_links": {
      "lcsc": "C5155877"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T00:29:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BOOT",
        "type": "output",
        "description": "A 0.1μF bootstrap capacitor is required between the BOOT and PH pins, and if its voltage falls below the minimum requirement the high-side MOSFET is forced off until the capacitor is refreshed."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "This pin is the 3.5V to 28V input supply voltage."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable pin: pull below 0.5V to disable and float to enable, with programming the input undervoltage lockout using two resistors recommended."
      },
      {
        "number": "4",
        "name": "SS",
        "type": "input",
        "description": "Slow-start pin, where an external capacitor connected to this pin sets the output rise time."
      },
      {
        "number": "5",
        "name": "VSENSE",
        "type": "input",
        "description": "This pin is the inverting node of the transconductance (gm) error amplifier."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "output",
        "description": "Error-amplifier output and input to the PWM comparator, with frequency compensation components connected to this pin."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, which must be connected to the exposed PowerPAD on the ESOP8 package for proper operation."
      },
      {
        "number": "8",
        "name": "PH",
        "type": "output",
        "description": "The PH pin is the source of the internal high-side power MOSFET."
      },
      {
        "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-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 ESOP8 exposed PowerPAD is not given a pin number in the datasheet and is not listed as a numbere"
        ],
        "pages_sent": 3,
        "cost_usd": 0.0099,
        "at": "2026-10-28T00:29:06"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/41ada8ef90c17ba2c18fc411b2995649.pdf",
        "pages": 26,
        "sha256": "08733d3b925067d8",
        "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": "md8933esf4.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": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "md8933esf4-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": "ce458c01c594820cd87eb59f8fecdf0e835d1b700b62d68b165002941cb0521a",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}