BCT2038EUK12-TR

{
  "schema_version": 1,
  "type": "component",
  "slug": "bct2038euk12-tr",
  "title": "BCT2038EUK12-TR",
  "brief": "BROADCHIP Linear Voltage Regulators (LDO), SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power supply chip",
    "bct2038euk12-tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BCT2038EUK12-TR",
    "manufacturer": "BROADCHIP",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Supply Chip",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945667398385664",
    "parts": {
      "symbol": "bct2038euk12-tr.kicad_sym",
      "footprint": "bct2038euk12-tr.kicad_mod",
      "model_3d": "bct2038euk12-tr-hero.glb",
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      "model_3d_step_plain": "bct2038euk12-tr.step",
      "lbr": "bct2038euk12-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2887779"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T23:37:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Regulator input; supply voltage can range from 1.6V to 5.5V and the pin should be bypassed with a 1μF capacitor to GND."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the regulator."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable pin with an internal pull-down resistor; a logic low reduces the supply current to less than 1μA, and it must be connected to IN for normal operation."
      },
      {
        "number": "4",
        "name": "BP",
        "type": "passive",
        "description": "Reference-noise bypass pin on the fixed-voltage version (this MPN is 1.2V fixed); bypass with a low-leakage 0.01μF ceramic capacitor placed very close to the pin for reduced output noise and high PSRR."
      },
      {
        "number": "5",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulator output."
      }
    ],
    "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: Pin 4 is labelled BP/FB in the datasheet. It is BP (noise bypass) on fixed-voltage versions and FB (; The PIN DESCRIPTION table is flattened in the extracted text, so the column mapping was inferred. It"
        ],
        "pages_sent": 18,
        "cost_usd": 0.0556,
        "at": "2026-10-17T23:35:03"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945667398385664",
        "pages": 18,
        "sha256": "85f29f031228797a",
        "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"
    },
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        "file": "bct2038euk12-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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "bct2038euk12-tr-etched.step",
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        "sha256": "39297dc3cfbbb3bc6acbf50f6e3f3512905e78805449c483a7f6377c2c873db9",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "BROADCHIP",
      "Package": "SOT-23-5",
      "Category": "Power Supply Chip",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "85f29f031228797a134e2d6852d44f582b1699395325427cafefcc5293cc96a1",
      "rows": [
        {
          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 1.6,
          "typ": null,
          "max": 5.5,
          "conditions": "+25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Accuracy",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -2.5,
          "typ": null,
          "max": 2.5,
          "conditions": "IOUT = 0.1mA, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage (1.2V ≤ VOUT < 1.8V)",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 945,
          "max": 1280,
          "conditions": "IOUT = 500mA, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation (VOUT < 1.8V or VOUT > 3.3V)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.01,
          "max": 0.1,
          "conditions": "VIN = 1.6V or (VOUT + 0.5V) to 5.5V, IOUT = 1mA, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 12,
          "max": 40,
          "conditions": "IOUT = 0.1mA to 500mA, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum Output Current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "+25℃, see Note 1",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Current Limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 560,
          "max": 800,
          "conditions": "+25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Short Current Limit",
          "symbol": "ISHORT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 320,
          "conditions": "VOUT = 0V, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ground Pin Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 20,
          "max": 26,
          "conditions": "No Load, VEN = VIN, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio (f = 217Hz, CBP = 0µF)",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "CBP = 0µF, IOUT = 30mA, COUT = 1μF, VIN = 2.8V, VOUT = 1.8V, ΔVRIPPLE = 0.2VP-P, f = 217Hz, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio (f = 1kHz, CBP = 0µF)",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "CBP = 0µF, IOUT = 30mA, COUT = 1μF, VIN = 2.8V, VOUT = 1.8V, ΔVRIPPLE = 0.2VP-P, f = 1kHz, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio (f = 217Hz, CBP = 0.01µF)",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 82,
          "max": null,
          "conditions": "CBP = 0.01μF, IOUT = 30mA, COUT = 1μF, VIN = 2.8V, VOUT = 1.8V, ΔVRIPPLE = 0.2VP-P, f = 217Hz, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio (f = 1kHz, CBP = 0.01µF)",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "CBP = 0.01μF, IOUT = 30mA, COUT = 1μF, VIN = 2.8V, VOUT = 1.8V, ΔVRIPPLE = 0.2VP-P, f = 1kHz, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Noise (CBP = 0µF, IOUT = 0mA)",
          "symbol": "en",
          "kind": "electrical",
          "unit": "µVRMS",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "CBP = 0µF, f = 10Hz to 100kHz, COUT = 1µF, VIN = 2.8V, VOUT = 1.8V, IOUT = 0mA, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Noise (CBP = 0µF, IOUT = 30mA)",
          "symbol": "en",
          "kind": "electrical",
          "unit": "µVRMS",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "CBP = 0µF, f = 10Hz to 100kHz, COUT = 1µF, VIN = 2.8V, VOUT = 1.8V, IOUT = 30mA, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Noise (CBP = 0.01µF, IOUT = 0mA)",
          "symbol": "en",
          "kind": "electrical",
          "unit": "µVRMS",
          "min": null,
          "typ": 25,
          "max": null,
          "conditions": "CBP = 0.01µF, f = 10Hz to 100kHz, COUT = 1µF, VIN = 2.8V, VOUT = 1.8V, IOUT = 0mA, +25℃",
          "source_page": 5,
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        },
        {
          "name": "Output Voltage Noise (CBP = 0.01µF, IOUT = 30mA)",
          "symbol": "en",
          "kind": "electrical",
          "unit": "µVRMS",
          "min": null,
          "typ": 65,
          "max": null,
          "conditions": "CBP = 0.01µF, f = 10Hz to 100kHz, COUT = 1µF, VIN = 2.8V, VOUT = 1.8V, IOUT = 30mA, +25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Temperature Coefficient",
          "symbol": "TCVOUT",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "IOUT = 0.1mA, Full (-40℃ to +85℃)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN Input Threshold High",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": null,
          "conditions": "VIN = 1.6V to 5.5V, Full",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN Input Threshold Low",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "VIN = 1.6V to 5.5V, Full",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN Input Bias Current (high)",
          "symbol": "IBH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.8,
          "max": 2,
          "conditions": "VEN = 5.5V, Full",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN Input Bias Current (low)",
          "symbol": "IBL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.01,
          "max": 1,
          "conditions": "VEN = 0V, Full",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Supply Current",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.01,
          "max": 1,
          "conditions": "VEN = 0V, Full",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Start-Up Time",
          "symbol": "tSTR",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "COUT = 1μF, No Load, CBP = 0µF, +25℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "RON of Discharge MOSFET",
          "symbol": "RON",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "VIN = 4.0V, VEN = 0V, +25℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Temperature",
          "symbol": "TSHDN",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 140,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Hysteresis",
          "symbol": "ΔTSHDN",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating Voltage Range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.6,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "IN to GND",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN to GND",
          "symbol": "VEN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "OUT, BP/FB to GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit printed as (VIN +0.3V)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
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    "name": "Ray",
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