BL1117-33CX

{
  "schema_version": 1,
  "type": "component",
  "slug": "bl1117-33cx",
  "title": "BL1117-33CX",
  "brief": "BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "bl1117-33cx"
  ],
  "component": {
    "mpn": "BL1117-33CX",
    "manufacturer": "BL Shanghai Belling",
    "package": "SOT-223",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f87ee0fb03c1e03cbdb4d7bba147a768.pdf",
    "parts": {
      "symbol": "bl1117-33cx.kicad_sym",
      "footprint": "bl1117-33cx.kicad_mod",
      "model_3d": "bl1117-33cx-etched.glb",
      "model_3d_plain": "bl1117-33cx.glb",
      "model_3d_step": "bl1117-33cx-etched.step",
      "model_3d_step_plain": "bl1117-33cx.step",
      "lbr": "bl1117-33cx.lbr"
    },
    "distributor_links": {
      "lcsc": "C5400"
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the regulator. On fixed-voltage versions (including -33) this pin is the device ground reference; on the adjustable version the same pin serves as the ADJ feedback input tied to the external resistor divider."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 3.3V output (3.234V-3.366V, ±2%) capable of sourcing up to 1A. Requires an output capacitor (10µF typical, compatible with tantalum, electrolytic, or MLCC) for stability."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated input supply, 4.8V to 16V recommended (18V absolute max). Bypass with a 10µF input capacitor close to the pin. Dropout is 1.3V at 1A load."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f87ee0fb03c1e03cbdb4d7bba147a768.pdf",
        "pages": 16,
        "sha256": "fcde732a0d8dde18",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -3.15,
        -2.3
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-223-3_TabPin2@sha256:8ae5f03e2c16377a",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "bl1117-33cx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          6.5,
          1.7
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "77ad6dbacc493cb619c728f26d2ddcf461eb0feb6b977b47d01d51e67016f654",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bl1117-33cx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          6.5,
          1.7
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "02ffe47f624aebf92590635911f14e613fb2ae136a7c9e29647f70a15a99680c",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BL Shanghai Belling",
      "Package": "SOT-223",
      "Category": "PMIC",
      "Pins": "3"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bl1117-33cx"
  ],
  "discovery_pitch": "BL1117-33CX (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",
    "bl1117-33cx.kicad_sym",
    "bl1117-33cx.kicad_mod",
    "bl1117-33cx.glb",
    "bl1117-33cx.step",
    "bl1117-33cx-etched.step",
    "bl1117-33cx.lbr",
    "docs/hero.png",
    "docs/bl1117-33cx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "BL1117-33CX",
      "kind": "packaging"
    },
    {
      "mpn": "BL1117-33CX33AX",
      "kind": "packaging"
    },
    {
      "mpn": "BL1117-33CX33CY",
      "kind": "packaging"
    },
    {
      "mpn": "BL1117-33CX33AY",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T17:46:16.391Z"
}