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Ray Set visibility: public 114f378 10h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "bl8503-30psm",
  "title": "BL8503-30PSM",
  "brief": "BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "bl8503-30psm",
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  "component": {
    "mpn": "BL8503-30PSM",
    "manufacturer": "BL Shanghai Belling",
    "package": "SOT-89-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586177534837211136",
    "parts": {
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      "footprint": "bl8503-30psm.kicad_mod",
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      "model_3d_plain": "bl8503-30psm-etched.glb",
      "model_3d_step": "bl8503-30psm-etched.step",
      "model_3d_step_plain": "bl8503-30psm.step",
      "lbr": "bl8503-30psm.lbr"
    },
    "distributor_links": {
      "lcsc": "C90249"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T13:19:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Vss",
        "type": "power_in",
        "description": "Ground reference pin for the regulator (listed as 'Ground' in the pin description table for the SOT-89-3 (SM) package)."
      },
      {
        "number": "2",
        "name": "Vin",
        "type": "power_in",
        "description": "Supply voltage input; the datasheet gives an input voltage range of 1.5V to 10V and an absolute maximum input voltage of 10V."
      },
      {
        "number": "3",
        "name": "Vout",
        "type": "power_out",
        "description": "Regulated output voltage; for the BL8503-30PSM this is 3.0V (2.94V to 3.06V), with output current limited to 250mA maximum."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table in the datasheet text is column-aligned poorly. The pin numbers were mapped using the ; The SOT-89-3 package outline drawing is not present in the extracted text (page 9 has only the headi; No pin-level electrical limits beyond input voltage range, absolute maximum and output current were "
        ],
        "pages_sent": 13,
        "cost_usd": 0.0431,
        "at": "2026-10-18T13:17:13"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586177534837211136",
        "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": [
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        "file": "bl8503-30psm.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bl8503-30psm-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "sha256": "16a85ba06135473eaabfba8d9690df9d63cc9c42a54b6b9ecc87b3ccade034d5",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BL Shanghai Belling",
      "Package": "SOT-89-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8f6684221c2cf4c4c4503790241807843256a941824187d8db4a1930a41a8b96",
      "rows": [
        {
          "name": "Output Voltage",
          "symbol": "Vout",
          "kind": "electrical",
          "unit": "V",
          "min": 2.94,
          "typ": 3,
          "max": 3.06,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Temperature Coefficient",
          "symbol": "T Vout/Vout",
          "kind": "temperature_coefficient",
          "unit": "ppm/C",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "Iout=10mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage",
          "symbol": "Vin",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Maximum Output Current",
          "symbol": "Iout(Max.)",
          "kind": "electrical",
          "unit": "mA",
          "min": 250,
          "typ": null,
          "max": null,
          "conditions": "Vin=4V, Vout>2.94V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "Vin-Vout",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 170,
          "max": 300,
          "conditions": "Iout=100mA",
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          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "Vin-Vout",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 320,
          "max": 500,
          "conditions": "Iout=200mA",
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          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "Vout/Vout per V",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.2,
          "max": 0.3,
          "conditions": "Iout=40mA, 3.2V≤Vin≤8V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "Vout",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 20,
          "max": 40,
          "conditions": "Vin=4.0V, 1mA≤Iout≤100mA",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Quiescent Current",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 3,
          "max": 5,
          "conditions": "Vin=4V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (absolute maximum)",
          "symbol": "Vin",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Max input voltage",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "",
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        },
        {
          "name": "Ambient Temperature (absolute maximum)",
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          "kind": "absolute_maximum",
          "unit": "C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation SOT-89-3",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "SOT-89-3 package",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "Ts",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": -45,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10S",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage Range (recommended)",
          "symbol": "Vin",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature (recommended)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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  "discovery_triggers": [
    "bl8503-30psm"
  ],
  "discovery_pitch": "BL8503-30PSM (BL Shanghai Belling) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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  "visibility": {
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  }
}