BL8503-33PRM

{
  "schema_version": 1,
  "type": "component",
  "slug": "bl8503-33prm",
  "title": "BL8503-33PRM",
  "brief": "BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "bl8503-33prm"
  ],
  "component": {
    "mpn": "BL8503-33PRM",
    "manufacturer": "BL Shanghai Belling",
    "package": "SOT-23-3L",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2201121530_BL-Shanghai-Belling-BL8503-33PRM_C2932485.pdf",
    "parts": {
      "symbol": "bl8503-33prm.kicad_sym",
      "footprint": "bl8503-33prm.kicad_mod",
      "model_3d": "bl8503-33prm-etched.glb",
      "model_3d_plain": "bl8503-33prm.glb",
      "model_3d_step": "bl8503-33prm-etched.step",
      "model_3d_step_plain": "bl8503-33prm.step",
      "lbr": "bl8503-33prm.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "Vss",
        "type": "power_in",
        "description": "Ground reference for the regulator. Connect to system ground; place the 1 µF output capacitor return here."
      },
      {
        "number": "2",
        "name": "Vout",
        "type": "power_out",
        "description": "Regulated 3.3V output (3.234-3.366 V, ±2%). Supplies up to 250 mA. Requires a 1 µF (tantalum recommended) output capacitor to ground for stability."
      },
      {
        "number": "3",
        "name": "Vin",
        "type": "power_in",
        "description": "Unregulated supply input. Operating range 1.5 V to 8 V (absolute max 10 V). Requires a 1 µF (tantalum recommended) input capacitor to ground."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2201121530_BL-Shanghai-Belling-BL8503-33PRM_C2932485.pdf",
        "pages": 13,
        "sha256": "8f6684221c2cf4c4",
        "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"
    },
    "models_3d": [
      {
        "file": "bl8503-33prm.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bl8503-33prm-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4a3524614f809773458a54a555e7ebd210fb4abe0b441c2ef8a55b70f96b8b82",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BL Shanghai Belling",
      "Package": "SOT-23-3L",
      "Category": "PMIC",
      "Pins": "3"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bl8503-33prm"
  ],
  "discovery_pitch": "BL8503-33PRM (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",
    "bl8503-33prm.kicad_sym",
    "bl8503-33prm.kicad_mod",
    "bl8503-33prm.glb",
    "bl8503-33prm.step",
    "bl8503-33prm-etched.step",
    "bl8503-33prm.lbr",
    "docs/hero.png",
    "docs/bl8503-33prm-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:54:34.410Z"
}