BL1118CS8TRAD33

{
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  "type": "component",
  "slug": "bl1118cs8trad33",
  "title": "BL1118CS8TRAD33",
  "brief": "BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, ESOP-8-EP. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "pmic",
    "bl1118cs8trad33"
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  "component": {
    "mpn": "BL1118CS8TRAD33",
    "manufacturer": "BL Shanghai Belling",
    "package": "ESOP-8-EP",
    "pin_count": 9,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/354f80155da55758e7f05e469bac7e52.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "GND/ADJ",
        "type": "power_in",
        "description": "Channel 1 ground (fixed-output version) or adjust pin (adjustable version). In the adjustable configuration, this pin is tied to the resistor divider midpoint; the regulator forces 1.25V between Vout1 and this pin. Adjust-pin current is typically 55uA (max 120uA)."
      },
      {
        "number": "2",
        "name": "Vin1",
        "type": "power_in",
        "description": "Channel 1 input supply. Operating range up to 12V max. Bypass with a 10uF input capacitor (tantalum, electrolytic, or MLCC) close to the pin."
      },
      {
        "number": "3",
        "name": "GND/ADJ",
        "type": "power_in",
        "description": "Channel 2 ground (fixed-output version) or adjust pin (adjustable version). In the adjustable configuration this pin is the feedback node driven to 1.25V above the corresponding output."
      },
      {
        "number": "4",
        "name": "Vin2",
        "type": "power_in",
        "description": "Channel 2 input supply. Operating range up to 12V max. Bypass with a 10uF input capacitor close to the pin. Pin configuration is customizable on demand so both channels can share a single input."
      },
      {
        "number": "5",
        "name": "Vout2",
        "type": "power_out",
        "description": "Channel 2 regulated output. Tied together with pin 6 to share current up to 1A. Requires a 10uF output capacitor."
      },
      {
        "number": "6",
        "name": "Vout2",
        "type": "power_out",
        "description": "Channel 2 regulated output (paralleled with pin 5). Fixed at 1.2/1.8/2.5/3.3/5V per ordering code, or set by external divider on the ADJ variant. 1A maximum with typical 1.3V dropout."
      },
      {
        "number": "7",
        "name": "Vout1",
        "type": "power_out",
        "description": "Channel 1 regulated output (paralleled with pin 8). Requires a 10uF output capacitor. 1A maximum with typical 1.3V dropout."
      },
      {
        "number": "8",
        "name": "Vout1",
        "type": "power_out",
        "description": "Channel 1 regulated output (paralleled with pin 7). Fixed at 1.2/1.8/2.5/3.3/5V per ordering code, or set by external divider on the ADJ variant."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "power_in",
        "description": "Exposed thermal pad on the underside of the ESOP-8 package. Solder to a ground copper pour for heat dissipation; theta-JC = 10 C/W, theta-JA = 63 C/W."
      }
    ],
    "provenance": {
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      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/354f80155da55758e7f05e469bac7e52.pdf",
        "pages": 8,
        "sha256": "85526dbc6c09a729",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
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        "checked": "2026-10-07",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "BL Shanghai Belling",
      "Package": "ESOP-8-EP",
      "Category": "PMIC",
      "Pins": "9"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "85526dbc6c09a729",
      "rows": [
        {
          "name": "Reference Voltage (ADJ channel)",
          "symbol": "Vref",
          "kind": "electrical",
          "unit": "V",
          "min": 1.225,
          "typ": 1.25,
          "max": 1.275,
          "conditions": "10mA≤Iout≤1A, Vin=3.25V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage (3.3V channel)",
          "symbol": "Vout",
          "kind": "electrical",
          "unit": "V",
          "min": 3.234,
          "typ": 3.3,
          "max": 3.366,
          "conditions": "0≤Iout≤1A, Vin=5.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (ADJ channel)",
          "symbol": "ΔVout",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.1,
          "max": 0.2,
          "conditions": "Iout=10mA, 2.75V≤Vin≤12V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (3.3V channel)",
          "symbol": "ΔVout",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.1,
          "max": 0.2,
          "conditions": "Iout=10mA, 4.8V≤Vin≤12V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation (ADJ channel)",
          "symbol": "ΔVout",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 10,
          "max": 30,
          "conditions": "Vin =2.75V, 10mA≤Iout≤1A",
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        },
        {
          "name": "Load Regulation (3.3V channel)",
          "symbol": "ΔVout",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 10,
          "max": 30,
          "conditions": "Vin=4.8V, 10mA≤Iout≤1A",
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        },
        {
          "name": "Dropout Voltage",
          "symbol": "Vdrop",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.23,
          "max": 1.3,
          "conditions": "Iout=100mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "Vdrop",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.3,
          "max": 1.5,
          "conditions": "Iout=1A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current Limit",
          "symbol": "Ilimit",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "Vin-Vout=2V, Tj=25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum Load Current (ADJ channel)",
          "symbol": "Imin",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2,
          "max": 10,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current (3.3V channel)",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2,
          "max": 5,
          "conditions": "Vin =12V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Adjust Pin Current (ADJ channel)",
          "symbol": "IAdj",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 55,
          "max": 120,
          "conditions": "Vin =5V, 10mA≤Iout≤1A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Adjust Pin Current Change (ADJ channel)",
          "symbol": "Ichange",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.2,
          "max": 10,
          "conditions": "Vin =5V, 10mA≤Iout≤1A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Temperature Coefficient",
          "symbol": "ΔV/ΔT",
          "kind": "temperature_coefficient",
          "unit": "ppm",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-Ambient Thermal Resistance (ESOP-8)",
          "symbol": "JA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 63,
          "max": null,
          "conditions": "ESOP-8",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Max Input Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature (Tj)",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "",
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        },
        {
          "name": "Ambient Temperature (Ta)",
          "symbol": "Ta",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": -20,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance (junction-case)",
          "symbol": "",
          "kind": "thermal",
          "unit": "C/W",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "ESOP8",
          "source_page": 2,
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        },
        {
          "name": "Storage Temperature (Ts)",
          "symbol": "Ts",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": -40,
          "typ": null,
          "max": -150,
          "conditions": "",
          "source_page": 2,
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        {
          "name": "Lead Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10S",
          "source_page": 2,
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        },
        {
          "name": "Input Voltage Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "",
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        {
          "name": "Ambient Temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "C",
          "min": -20,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
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