main
Ray Set visibility: public 605677c 5d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "ba50dd0t",
  "title": "BA50DD0T",
  "brief": "ROHM Semicon Linear Voltage Regulators (LDO), TO-220-3. 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",
    "ba50dd0t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BA50DD0T",
    "manufacturer": "ROHM Semicon",
    "package": "TO-220-3",
    "pin_count": 3,
    "category": "Power Management",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1f712d529155c15ecc6b80aebb627f6b.pdf",
    "parts": {
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      "model_3d_step_plain": "ba50dd0t.step",
      "lbr": "ba50dd0t.lbr"
    },
    "distributor_links": {
      "lcsc": "C5336776",
      "digikey": "BA50DD0T-ND",
      "mouser": "755-BA50DD0T"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T02:09:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "BA50DD0T-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "755-BA50DD0T",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Vcc",
        "type": "power_in",
        "description": "Power supply voltage input; recommended 3.0V to 25.0V for BAxxDD0xx, with a capacitor greater than 0.33µF to GND."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground terminal (N.C./GND pin is GND on TO220FP-3); keep set ground and IC ground at the same potential."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "power_out",
        "description": "Voltage output (5.0V for BA50DD0T, up to 2A); requires an anti-oscillation capacitor between Vo and GND."
      }
    ],
    "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: Pin 2 is listed as 'N.C./GND' with footnote stating TO220FP-3 = GND; treated as GND. The TO220FP-3 f; Package hint says TO-220-3; the datasheet's package for BA50DD0T is TO220FP-3 (full-pack), pinout ta"
        ],
        "pages_sent": 23,
        "cost_usd": 0.1683,
        "at": "2026-10-31T02:09:16"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/1f712d529155c15ecc6b80aebb627f6b.pdf",
        "pages": 23,
        "sha256": "a7cdaf4806983a19",
        "source_tier": "mfr"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "ba50dd0t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.25,
          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "7cb065d935df5771f0ba6e48ddd180863a121af76483dad7f18e667a7b68204a",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ba50dd0t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "687ed46e56d7b2bda59188153fd0ac8bf718800f540d81338d6f51c41a5c87d8",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ROHM Semicon",
      "Package": "TO-220-3",
      "Category": "Power Management",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a7cdaf4806983a197ae5c62116b15a0377b51f4f3be683ffaace9dfac768dbca",
      "rows": [
        {
          "name": "Output Voltage",
          "symbol": "Vo",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "Io=200mA, Vcc=7.0V, VCTL=3V, Ta=25C; limits printed as Votyp x 0.99 to Votyp x 1.01",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Shut Down Current",
          "symbol": "Isd",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0,
          "max": 10,
          "conditions": "VCTL=0V, Io=0mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bias Current",
          "symbol": "Ib",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.9,
          "max": 2,
          "conditions": "Io=0mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage 1",
          "symbol": "ΔVd1",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.3,
          "max": 0.5,
          "conditions": "Vcc=0.95×Vo, Io=1A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage 2",
          "symbol": "ΔVd2",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.45,
          "max": 0.7,
          "conditions": "Vcc=0.95×Vo, Io=2A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Peak Output Current",
          "symbol": "Io",
          "kind": "electrical",
          "unit": "A",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "Reg.I",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 15,
          "max": 50,
          "conditions": "Vcc=VCCT V→25V, Io=200mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "Reg.L",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 50,
          "max": 200,
          "conditions": "Io=0mA→2A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection",
          "symbol": "R.R.",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 55,
          "max": null,
          "conditions": "f=120Hz, ein=-20dBV, Io=100mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Temperature Coefficient of Output Voltage",
          "symbol": "Tcvo",
          "kind": "temperature_coefficient",
          "unit": "%/℃",
          "min": null,
          "typ": 0.02,
          "max": null,
          "conditions": "Io=5mA, Tj=0 to 125℃ (typ printed as ±0.02; not 100% tested)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Power Supply Voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 25,
          "conditions": "BAxxDD0xx, Ta=25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Current",
          "symbol": "Io",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "BAxxDD0xx, Ta=25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input Power Supply Voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 35,
          "conditions": "Ta=25℃; must not exceed Pd",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "Pd",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 2000,
          "conditions": "TO220FP-3,5, Ta=25℃, no heat sink",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "Topr",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Ta=25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ambient Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "Ta=25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TjMAX",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Ta=25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Voltage Applied to the Tip",
          "symbol": "VCC peak",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "Applied voltage 200msec or less (tr≥1msec)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-Ambient (IC alone)",
          "symbol": "θj-a",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 62.5,
          "max": null,
          "conditions": "IC alone, TO220FP package (printed as θj-6 on page 13; θja on page 14)",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-Case (max heat sink)",
          "symbol": "θj-c",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 6.25,
          "max": null,
          "conditions": "When using a maximum heat sink",
          "source_page": 13,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ba50dd0t"
  ],
  "discovery_pitch": "BA50DD0T (ROHM Semicon) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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  "visibility": {
    "public": true
  }
}