BL1118CS8TR1833

{
  "schema_version": 1,
  "type": "component",
  "slug": "bl1118cs8tr1833",
  "title": "BL1118CS8TR1833",
  "brief": "BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, ESOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "pmic",
    "bl1118cs8tr1833"
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  "component": {
    "mpn": "BL1118CS8TR1833",
    "manufacturer": "BL Shanghai Belling",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/354f80155da55758e7f05e469bac7e52.pdf",
    "parts": {
      "symbol": "bl1118cs8tr1833.kicad_sym",
      "footprint": "bl1118cs8tr1833.kicad_mod",
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      "model_3d_plain": "bl1118cs8tr1833.glb",
      "model_3d_step": "bl1118cs8tr1833-etched.step",
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      "lbr": "bl1118cs8tr1833.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Channel 1 ground return. On adjustable versions this pin becomes the ADJ (feedback) pin, but on the BL1118CS8TR1833 (fixed 1.8V CH1) it is tied to ground."
      },
      {
        "number": "2",
        "name": "Vin1",
        "type": "power_in",
        "description": "Channel 1 supply input. Absolute maximum 12V; requires a 10uF bypass capacitor (Cin1) to ground close to the pin."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Channel 2 ground return. On adjustable versions this pin becomes the ADJ (feedback) pin, but on the BL1118CS8TR1833 (fixed 3.3V CH2) it is tied to ground."
      },
      {
        "number": "4",
        "name": "Vin2",
        "type": "power_in",
        "description": "Channel 2 supply input. Absolute maximum 12V; requires a 10uF bypass capacitor (Cin2) to ground close to the pin."
      },
      {
        "number": "5",
        "name": "Vout2",
        "type": "power_out",
        "description": "Channel 2 regulated output (3.3V on the -1833 variant, up to 1A). Tie in parallel with pin 6 and bypass with a 10uF output capacitor."
      },
      {
        "number": "6",
        "name": "Vout2",
        "type": "power_out",
        "description": "Channel 2 regulated output (paralleled with pin 5) for current sharing to the 1A load."
      },
      {
        "number": "7",
        "name": "Vout1",
        "type": "power_out",
        "description": "Channel 1 regulated output (paralleled with pin 8) for current sharing to the 1A load."
      },
      {
        "number": "8",
        "name": "Vout1",
        "type": "power_out",
        "description": "Channel 1 regulated output (1.8V on the -1833 variant, up to 1A). Tie in parallel with pin 7 and bypass with a 10uF output capacitor."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "power_in",
        "description": "Exposed thermal pad on the ESOP-8 package underside. Solder to the PCB ground copper pour for heat dissipation (θJC = 10°C/W, θJA = 63°C/W)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/354f80155da55758e7f05e469bac7e52.pdf",
        "pages": 8,
        "sha256": "85526dbc6c09a729",
        "source_tier": "lcsc"
      },
      "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"
    },
    "models_3d": [
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        "file": "bl1118cs8tr1833.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2d6f7e774e8143e3320cbd59eb5be9f3b7864614644e3b072006e1eb05fb7fa6",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bl1118cs8tr1833-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "30a95d71ac745bdec31466535e0b0d2ac7a87b43d73c479c97bf25cf19113f25",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BL Shanghai Belling",
      "Package": "ESOP-8",
      "Category": "PMIC",
      "Pins": "9"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bl1118cs8tr1833"
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  "discovery_pitch": "BL1118CS8TR1833 (BL Shanghai Belling) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "bl1118cs8tr1833.step",
    "bl1118cs8tr1833-etched.step",
    "bl1118cs8tr1833.lbr",
    "docs/hero.png",
    "docs/bl1118cs8tr1833-datasheet.pdf",
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  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:47:19.525Z"
}