MD53R44

{
  "slug": "md53r44",
  "version": "0.1.0",
  "type": "component",
  "description": "Shanghai Mingda Microelectronics Linear Voltage Regulators (LDO), SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "md53r44",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "md53r44.kicad_sym",
    "md53r44.kicad_mod",
    "md53r44.glb",
    "md53r44.step",
    "md53r44.lbr",
    "docs/hero.png",
    "docs/md53r44-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "md53r44-hero.glb",
    "md53r44-hero.overlay.json",
    "md53r44-etched.glb"
  ],
  "component": {
    "mpn": "MD53R44",
    "manufacturer": "Shanghai Mingda Microelectronics",
    "package": "SOT-23-5L",
    "pin_count": 5,
    "category": "Power Supply Chip",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/63c7188d3002ab239cfda82f1ccbd393.pdf",
    "parts": {
      "symbol": "md53r44.kicad_sym",
      "footprint": "md53r44.kicad_mod",
      "model_3d": "md53r44-hero.glb",
      "model_3d_plain": "md53r44-etched.glb",
      "model_3d_step": "md53r44-etched.step",
      "model_3d_step_plain": "md53r44.step",
      "lbr": "md53r44.lbr"
    },
    "distributor_links": {
      "lcsc": "C2978456"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T18:22:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 886 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input, operating up to 10V (absolute maximum 12V), with an input capacitor of 1.0µF or more recommended."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (VSS) reference for the regulator."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "ON/OFF enable input, high level 1.0-10V turns the output on and low level 0-0.35V shuts it down; it has no internal pull-up/pull-down so do not leave it floating (tie to VIN if unused)."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 4.4V ±2% output for up to 500mA typical, requiring 2.2µF or more output capacitor with ESR of 0.5-5Ω and not to exceed VIN+0.3V."
      }
    ],
    "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": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin diagram is a graphic and the text extraction lost its geometry. The pin-to-name mapping (1 V"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0784,
        "at": "2026-10-23T18:22:00"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/63c7188d3002ab239cfda82f1ccbd393.pdf",
        "pages": 13,
        "sha256": "264969efedda2a5d",
        "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": "md53r44.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": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "md53r44-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": "310453b814c07eaae4730badf9a3fbc6e25259c13490a7cac3e9a3d84b7f104b",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}