main
Ray Set visibility: public 617f2d9 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "md75r33",
  "title": "MD75R33",
  "brief": "Shanghai Mingda Microelectronics Linear Voltage Regulators (LDO), SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management ics",
    "md75r33",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MD75R33",
    "manufacturer": "Shanghai Mingda Microelectronics",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management ICs",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d63909319070b72615c86870ca0e2bbd.pdf",
    "parts": {
      "symbol": "md75r33.kicad_sym",
      "footprint": "md75r33.kicad_mod",
      "model_3d": "md75r33-hero.glb",
      "model_3d_plain": "md75r33-etched.glb",
      "model_3d_step": "md75r33-etched.step",
      "model_3d_step_plain": "md75r33.step",
      "lbr": "md75r33.lbr"
    },
    "distributor_links": {
      "lcsc": "C920464"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:14:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input; withstands up to 18V input while keeping the output regulated (absolute maximum 20V)."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "3",
        "name": "CE",
        "type": "input",
        "description": "Chip enable, active high; VCEH minimum 1.0V to operate and VCEL maximum 0.35V to shut down."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; left floating."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 3.3V output (±2%) for MD75R33, up to 120mA, with short-circuit current limited to about 160mA and requiring an output capacitor of 2.2µF or more."
      }
    ],
    "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: Datasheet pin table gives CE as 'active high' only; CE internal pull-up/pull-down not clearly stated"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0661,
        "at": "2026-10-23T12:13:42"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/d63909319070b72615c86870ca0e2bbd.pdf",
        "pages": 9,
        "sha256": "f24bf1a24834dc74",
        "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": "md75r33.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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "md75r33-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "bba5a2c9feab5a3365ea055f0c087f5bd41b8ffabf46960ae36f0ffbeeb5c9ee",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shanghai Mingda Microelectronics",
      "Package": "SOT-23-5",
      "Category": "Power Management ICs",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "f24bf1a24834dc746e757bab0b1cce5f9ca7e4d5030c18659e1febf7b1cacc0b",
      "rows": [
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "Vss-0.3 ~ VIN+0.3V (min relative to Vss, max relative to VIN)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "SOT_23_5L",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "Topr",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 3.234,
          "typ": 3.3,
          "max": 3.366,
          "conditions": "VIN=5.3V, IOUT=10mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "mA",
          "min": 120,
          "typ": 180,
          "max": null,
          "conditions": "VIN=4.3V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "Vdrop",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "IOUT=1 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "Vdrop",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "IOUT=50 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "ΔVOUT/ΔVIN·VOUT",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.05,
          "max": 0.2,
          "conditions": "4.3V≤VIN≤18V, IOUT=1mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVOUT2",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 60,
          "max": 100,
          "conditions": "VIN=4.3V, 1.0mA≤IOUT≤120mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage temperature coefficient",
          "symbol": "ΔVOUT/ΔTa·VOUT",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": null,
          "typ": 50,
          "max": 100,
          "conditions": "VIN=4.3V, IOUT=10mA, -40℃≤Ta≤85℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 1.2,
          "max": 5,
          "conditions": "VIN=18V, no load",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Standby current",
          "symbol": "ISS1",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "VIN=18V, CE=GND, no load",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "CE pull-up current",
          "symbol": "ICEH",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "VIN=VCE=VOUT+1V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "CE input high level",
          "symbol": "VCEH",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "CE input low level",
          "symbol": "VCEL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.35,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "Vmax",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output short-circuit current",
          "symbol": "Ishort",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "Vout=0V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input capacitor",
          "symbol": "CIN",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "1.0 µF or more",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output capacitor",
          "symbol": "CL",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": 2.2,
          "typ": null,
          "max": null,
          "conditions": "2.2 µF or more (tantalum); 10.0 µF or more (aluminum electrolytic)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output capacitor ESR",
          "symbol": "ESR",
          "kind": "recommended_operating",
          "unit": "Ω",
          "min": 0.5,
          "typ": null,
          "max": 5,
          "conditions": "appropriate ESR range",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "md75r33"
  ],
  "discovery_pitch": "MD75R33 (Shanghai Mingda Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "md75r33.kicad_sym",
    "md75r33.kicad_mod",
    "md75r33.glb",
    "md75r33.step",
    "md75r33.lbr",
    "docs/hero.png",
    "docs/md75r33-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "md75r33-hero.glb",
    "md75r33-hero.overlay.json",
    "md75r33-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}