BL8072COTR33

{
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  "type": "component",
  "slug": "bl8072cotr33",
  "title": "BL8072COTR33",
  "brief": "BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
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    "pmic",
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  "component": {
    "mpn": "BL8072COTR33",
    "manufacturer": "BL Shanghai Belling",
    "package": "TO-252",
    "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/2208251800_BL-Shanghai-Belling-BL8072COTR33_C5155191.pdf",
    "parts": {
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      "model_3d_step_plain": "bl8072cotr33.step",
      "lbr": "bl8072cotr33.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "Vss/ADJ",
        "type": "power_in",
        "description": "Ground / adjust pin. Tie to GND for the fixed-voltage version (BL8072COTR33 = fixed 3.3V). In adjustable configurations this pin is driven by an external R1/R2 divider from Vout; adjust-pin current IAdj is ~2µA."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output. Fixed 3.3V ±2% for the BL8072COTR33 order code. Supplies up to 2A (Vin-Vout ≥ 1V for Vout ≥ 2.0V). Requires a 1µF ceramic output capacitor to GND for stability."
      },
      {
        "number": "3",
        "name": "VDD",
        "type": "power_in",
        "description": "Input supply. Absolute max 20V, recommended operating max 18V. Requires a 1µF ceramic bypass capacitor to GND. For 3.3V output (COTR33) recommended Vin ≥ ~4.3V for full spec operation."
      }
    ],
    "provenance": {
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        "pages": 7,
        "sha256": "a3ba73e83005f510",
        "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": "bl8072cotr33.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",
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        "sha256": "1ec6a5e9ddeb17244bb6a5a145b9a678809fbb61057419c371046af547ef988c",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BL Shanghai Belling",
      "Package": "TO-252",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a3ba73e83005f510",
      "rows": [
        {
          "name": "Input Voltage",
          "symbol": "Vin",
          "kind": "electrical",
          "unit": "V",
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        },
        {
          "name": "Maximum Output Current",
          "symbol": "Iout(Max.)",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Vin-Vout=1.5V, 1.5V≤Vout<2.0V",
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        },
        {
          "name": "Dropout Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
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          "name": "Dropout Voltage",
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        {
          "name": "Dropout Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 850,
          "max": 950,
          "conditions": "Iout1.5A, Vout ≥2.0V",
          "source_page": 3,
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        },
        {
          "name": "Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.1,
          "max": 0.3,
          "conditions": "Iout=10mA, Set Vout+1V≤Vin≤18V",
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        {
          "name": "Load Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 40,
          "max": 60,
          "conditions": "1mA≤Iout≤1.5A, Vout <1.5V",
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        {
          "name": "Load Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 20,
          "max": 40,
          "conditions": "1mA≤Iout≤1.5A, 1.5V≤Vout<2.0V",
          "source_page": 3,
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        {
          "name": "Load Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 10,
          "max": 30,
          "conditions": "1mA≤Iout≤1.5A, Vout ≥2.0V",
          "source_page": 3,
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        },
        {
          "name": "Quiescent Current",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 3,
          "max": 5,
          "conditions": "Vin=Set Vout+1V",
          "source_page": 3,
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        },
        {
          "name": "Output Voltage Temperature Coefficient",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Iout=100mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Case (TO-252)",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "Junction to case, TO-252",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Max Input Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
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        },
        {
          "name": "Operating Junction Temperature",
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          "unit": "°C",
          "min": null,
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        },
        {
          "name": "Ambient Temperature",
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          "unit": "°C",
          "min": -40,
          "typ": null,
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        {
          "name": "Storage Temperature",
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          "max": 150,
          "conditions": "",
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        {
          "name": "Lead Temperature",
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          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 s",
          "source_page": 2,
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        },
        {
          "name": "Input Voltage Range",
          "symbol": "Vin",
          "kind": "recommended_operating",
          "unit": "V",
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          "typ": null,
          "max": 18,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature",
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          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "BL8072COTR33 (BL Shanghai Belling) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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  "updated_at": "2026-09-24T17:53:31.806Z"
}