MD52E21QA3

{
  "schema_version": 1,
  "type": "component",
  "slug": "md52e21qa3",
  "title": "MD52E21QA3",
  "brief": "Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "md52e21qa3"
  ],
  "component": {
    "mpn": "MD52E21QA3",
    "manufacturer": "Shanghai Mingda Microelectronics",
    "package": "SOT-23-3L",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5c5c753dfa1b710d67c38488334283fa.pdf",
    "parts": {
      "symbol": "md52e21qa3.kicad_sym",
      "footprint": "md52e21qa3.kicad_mod",
      "model_3d": "md52e21qa3.glb",
      "model_3d_step": "md52e21qa3.step",
      "lbr": "md52e21qa3.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference. Connect to system ground plane; place input and output ceramic capacitors as close as possible to this pin."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 2.1V output (VOUT(S)=2.1V, tolerance +/-2%). Delivers up to 500mA (typ), current-limited at ~750mA with foldback to ~50mA under short circuit. Requires >=1.0uF low-ESR ceramic output capacitor for stability."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated input supply, 2.2V to 7.0V operating (absolute max 8V). Requires >=1.0uF ceramic input capacitor placed close to the pin. VOUT must not exceed VIN+0.3V to avoid parasitic-diode reverse conduction."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/5c5c753dfa1b710d67c38488334283fa.pdf",
        "pages": 14,
        "sha256": "11f4b5d8b0feb201",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shanghai Mingda Microelectronics",
      "Package": "SOT-23-3L",
      "Category": "PMIC",
      "Pins": "3"
    }
  },
  "variants": [
    {
      "mpn": "MD52E21QA3",
      "kind": "packaging"
    },
    {
      "mpn": "MD52E21QA3QC3",
      "kind": "packaging"
    },
    {
      "mpn": "MD52E21QA3PA1",
      "kind": "packaging"
    },
    {
      "mpn": "MD52E21QA3WB6",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "md52e21qa3"
  ],
  "discovery_pitch": "MD52E21QA3 (Shanghai Mingda Microelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "md52e21qa3.kicad_sym",
    "md52e21qa3.kicad_mod",
    "md52e21qa3.glb",
    "md52e21qa3.step",
    "md52e21qa3.lbr",
    "docs/hero.png",
    "docs/md52e21qa3-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T01:28:16.555Z"
}