BL1117-50CY

{
  "schema_version": 1,
  "type": "component",
  "slug": "bl1117-50cy",
  "title": "BL1117-50CY",
  "brief": "BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "bl1117-50cy"
  ],
  "component": {
    "mpn": "BL1117-50CY",
    "manufacturer": "BL Shanghai Belling",
    "package": "TO-252-2(DPAK)",
    "pin_count": 4,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7ccae236b9faf9a19019aee51b8d6126.pdf",
    "parts": {
      "symbol": "bl1117-50cy.kicad_sym",
      "footprint": "bl1117-50cy.kicad_mod",
      "model_3d": "bl1117-50cy-etched.glb",
      "model_3d_plain": "bl1117-50cy.glb",
      "model_3d_step": "bl1117-50cy-etched.step",
      "model_3d_step_plain": "bl1117-50cy.step",
      "lbr": "bl1117-50cy.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the regulator. Also serves as the thermal return via the DPAK tab (electrically connected to GND / tab)."
      },
      {
        "number": "2",
        "name": "Vout",
        "type": "power_out",
        "description": "Regulated 5.0V output, up to 1A load current. Requires a 10uF tantalum or MLCC output capacitor for stability (ESR 3mΩ~22Ω)."
      },
      {
        "number": "3",
        "name": "Vin",
        "type": "power_in",
        "description": "Unregulated input supply. Must be at least Vout+1.3V (dropout at 1A) up to 12V max operating (15V abs max). A 10uF input bypass capacitor is recommended."
      },
      {
        "number": "TAB",
        "name": "GND",
        "type": "power_in",
        "description": "TO-252 (DPAK) exposed heat-slug tab, internally connected to the GND pin. Solder to a ground copper pour for heat dissipation; θJC = 10°C/W for TO-252."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/7ccae236b9faf9a19019aee51b8d6126.pdf",
        "pages": 15,
        "sha256": "a7fe7f5c0846d4ca",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bl1117-50cy.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": "bl1117-50cy-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": "c3c271cef42fb89512434e1a67407d9cdde998a77a98efba543b19c6c1937370",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BL Shanghai Belling",
      "Package": "TO-252-2(DPAK)",
      "Category": "PMIC",
      "Pins": "4"
    }
  },
  "variants": [
    {
      "mpn": "BL1117-50CYY",
      "kind": "packaging"
    },
    {
      "mpn": "BL1117-50CY",
      "kind": "packaging"
    },
    {
      "mpn": "BL1117-50CY50AY",
      "kind": "packaging"
    },
    {
      "mpn": "BL1117-50CYX",
      "kind": "packaging"
    },
    {
      "mpn": "BL1117-50CY50CX",
      "kind": "packaging"
    },
    {
      "mpn": "BL1117-50CY50AX",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bl1117-50cy"
  ],
  "discovery_pitch": "BL1117-50CY (BL Shanghai Belling) 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",
    "bl1117-50cy.kicad_sym",
    "bl1117-50cy.kicad_mod",
    "bl1117-50cy.glb",
    "bl1117-50cy.step",
    "bl1117-50cy.lbr",
    "docs/hero.png",
    "docs/bl1117-50cy-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:46:40.260Z"
}