bd33ka5fp-e2

{
  "slug": "bd33ka5fp-e2",
  "version": "0.1.0",
  "type": "component",
  "description": "ROHM Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "pmic",
    "bd33ka5fp-e2"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bd33ka5fp-e2.kicad_sym",
    "bd33ka5fp-e2.kicad_mod",
    "bd33ka5fp-e2.glb",
    "bd33ka5fp-e2.step",
    "bd33ka5fp-e2.lbr",
    "docs/hero.png",
    "docs/bd33ka5fp-e2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bd33ka5fp-e2-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "component": {
    "mpn": "BD33KA5FP-E2",
    "manufacturer": "ROHM",
    "package": "TO-252-2(DPAK)",
    "pin_count": 4,
    "category": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "parts": {
      "symbol": "bd33ka5fp-e2.kicad_sym",
      "footprint": "bd33ka5fp-e2.kicad_mod",
      "model_3d": "bd33ka5fp-e2-etched.glb",
      "model_3d_plain": "bd33ka5fp-e2.glb",
      "model_3d_step": "bd33ka5fp-e2-etched.step",
      "model_3d_step_plain": "bd33ka5fp-e2.step",
      "lbr": "bd33ka5fp-e2.lbr"
    },
    "pins": [
      {
        "number": "1",
        "name": "Vcc",
        "type": "power_in",
        "description": "Input power supply. Recommended operating range 2.3V to 5.5V (absolute max 7.0V). Attach a decoupling capacitor (≥1μF ceramic) between Vcc and GND close to the pin."
      },
      {
        "number": "2",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected on the BDxxKA5FP TO252-3 no-switch variant. Datasheet explicitly notes 'N.C.(2PIN)' for BDxxKA5FP. Leave floating or tie to GND for mechanical support."
      },
      {
        "number": "3",
        "name": "Vo",
        "type": "power_out",
        "description": "Regulated 3.3V output, up to 500mA peak. Attach a ≥1μF low-ESR ceramic (X5R/X7R) anti-oscillation capacitor between Vo and GND. Load regulation typ. 25mV (Io=0→500mA); line regulation typ. 10mV."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground, exposed on the TO252-3 heat-sink tab (FIN). Datasheet explicitly notes 'GND(FIN)' for BDxxKA5FP. Solder to a wide copper ground plane for thermal dissipation (θja=104.2 ℃/W on a 70×70×1.6mm board with 7×7mm² copper)."
      }
    ],
    "provenance": {
      "rebuilt": "component block rebuilt 2026-10-05 from this page's own README pinout table and .kicad_sym (pins cross-checked), no re-extraction"
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "distributor_links": {
      "lcsc": "C161949",
      "digikey": "BD33KA5FP-E2TR-ND",
      "mouser": "755-BD33KA5FP-E2"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T18:53:38Z",
      "source": "Component Ocean /api/assign-pns + lcsc_map",
      "digikey": {
        "pn": "BD33KA5FP-E2TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "755-BD33KA5FP-E2",
        "status": "found"
      }
    },
    "models_3d": [
      {
        "file": "bd33ka5fp-e2.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bd33ka5fp-e2-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "faec13bd7622964a6c121f265bc8f47cd5bc840c71098fa337709e0562d248fb",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": null,
      "rows": [
        {
          "name": "Output Voltage precision (general description)",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak Output Current",
          "symbol": "Io",
          "kind": "electrical",
          "unit": "mA",
          "min": 500,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "ΔVd",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.12,
          "max": 0.2,
          "conditions": "Io=200mA, Vcc=0.95×Vo",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shut Down Current",
          "symbol": "Isd",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0,
          "max": 1,
          "conditions": "VCTL=0V, Io=0mA (OFFmode)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Bias Current",
          "symbol": "Ib",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 350,
          "max": 550,
          "conditions": "Io=0mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "Reg.I",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 10,
          "max": 35,
          "conditions": "Vcc=Vo+0.5V→5.5V, Io=200mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "Reg.L",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 25,
          "max": 75,
          "conditions": "Io=0mA→500mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Temperature Coefficient of Output Voltage",
          "symbol": "Tcvo",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "Io=5mA,Tj=0 to 125℃",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CTL ON Mode Voltage",
          "symbol": "VCTLON",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "ACTIVE MODE, Io=0mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CTL OFF Mode Voltage",
          "symbol": "VCTLOFF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "OFF MODE, Io=0mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CTL Input Current",
          "symbol": "ICTL",
          "kind": "electrical",
          "unit": "μA",
          "min": 20,
          "typ": 40,
          "max": 60,
          "conditions": "Io=0mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Power Supply Voltage",
          "symbol": "Vcc",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Current",
          "symbol": "Io",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": 0,
          "typ": null,
          "max": 500,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Control Terminal Voltage",
          "symbol": "VCTL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Voltage",
          "symbol": "Vcc",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Control Terminal Voltage",
          "symbol": "VCTL",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation (TO252-3)",
          "symbol": "Pd",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 1200,
          "conditions": "70mm×70mm×1.6mm glass epoxy board; reduce by 9.6 mW/℃ over 25℃",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "Topr",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ambient Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "Tjmax",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection",
          "symbol": "R.R.",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "f=120Hz, ein=-10dBV, Io=100mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-to-ambient (TO252-3)",
          "symbol": "θja",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 104.2,
          "max": null,
          "conditions": "Rohm standard board, 70×70×1.6mm, copper foil 7×7mm²",
          "source_page": 9,
          "source": "datasheet"
        }
      ]
    }
  }
}