BCT2057EUK18-TR

{
  "slug": "bct2057euk18-tr",
  "version": "0.1.0",
  "type": "component",
  "description": "BROADCHIP Linear Voltage Regulators (LDO), SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "bct2057euk18-tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bct2057euk18-tr.kicad_sym",
    "bct2057euk18-tr.kicad_mod",
    "bct2057euk18-tr.glb",
    "bct2057euk18-tr.step",
    "bct2057euk18-tr.lbr",
    "docs/hero.png",
    "docs/bct2057euk18-tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bct2057euk18-tr-hero.glb",
    "bct2057euk18-tr-hero.overlay.json",
    "bct2057euk18-tr-etched.glb"
  ],
  "component": {
    "mpn": "BCT2057EUK18-TR",
    "manufacturer": "BROADCHIP",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management ICs",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945758598385664",
    "parts": {
      "symbol": "bct2057euk18-tr.kicad_sym",
      "footprint": "bct2057euk18-tr.kicad_mod",
      "model_3d": "bct2057euk18-tr-hero.glb",
      "model_3d_plain": "bct2057euk18-tr-etched.glb",
      "model_3d_step": "bct2057euk18-tr-etched.step",
      "model_3d_step_plain": "bct2057euk18-tr.step",
      "lbr": "bct2057euk18-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2887807"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T06:18:26Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Regulator input, operating from 1.6V to 5.5V, with absolute maximum IN to GND of 6.5V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the regulator."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable pin, active high; the regulator turns on when EN is above 1.5V and enters shutdown when EN falls below 0.3V."
      },
      {
        "number": "4",
        "name": "ADJ",
        "type": "passive",
        "description": "Output voltage adjust pin, which is not connected (NC) on fixed-output versions, including the 1.8V BCT2057EUK18-TR."
      },
      {
        "number": "5",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulator output, with a minimum current limit of 1A and an over-current protection limit of 1.8A typical."
      }
    ],
    "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 datasheet states that ADJ is NC for fixed-output parts. BCT2057EUK18-TR is a fixed 1.8V variant,; The ordering table lists marking G8XX for BCT2057EUK18-TR, which is also used by the 0.8V and 2.8V v"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0405,
        "at": "2026-10-18T06:14:34"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945758598385664",
        "pages": 11,
        "sha256": "e2d4a8b052acbab0",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bct2057euk18-tr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bct2057euk18-tr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "42bcbf19fbedebd7910c97a73996b26b6e9b50c578c9ab0e6107c7feb480ee8f",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}