main
Ray Set visibility: public e8001bf 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "icw1238a33s4gq1",
  "title": "ICW1238A33S4GQ1",
  "brief": "ICW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. 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 management (pmic)",
    "icw1238a33s4gq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ICW1238A33S4GQ1",
    "manufacturer": "ICW",
    "package": "SOT-223-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/6e5d70729736049ff0ec83feb0ebe6a5.pdf",
    "parts": {
      "symbol": "icw1238a33s4gq1.kicad_sym",
      "footprint": "icw1238a33s4gq1.kicad_mod",
      "model_3d": "icw1238a33s4gq1-hero.glb",
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      "lbr": "icw1238a33s4gq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C22395386"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T02:42:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
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    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Voltage input; operating range 2.2 V to 40 V (absolute maximum 45 V), with a 2.2 µF or larger input capacitor placed close to the pin."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 3.3 V output (±2%) for up to 500 mA, needing a 2.2 µF or larger output capacitor and must not exceed VIN+0.3 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "primary_model": "claude-sonnet-5-5",
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        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
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          "extractor flagged: The S4 pin order (1=VIN, 2=GND, 3=VOUT) was read from the garbled text of the top-view diagram on pa; The SOT-223 package outline pages contain no text. The datasheet does not say whether the SOT-223 ta; The A-suffix (S4) part has a built-in enable, and the SOT-223-3 has no EN pin. The EN pin descriptio"
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        "cost_usd": 0.0794,
        "at": "2026-10-31T02:42:21"
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        "pages": 15,
        "sha256": "0a111c5858e69e15",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          6.5,
          1.7
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "77ad6dbacc493cb619c728f26d2ddcf461eb0feb6b977b47d01d51e67016f654",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "icw1238a33s4gq1-etched.step",
        "role": "eda",
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        "sha256": "e6e13be7565fd04bd17467c2012ff5443fa65df918422aef246621c57e30794d",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ICW",
      "Package": "SOT-223-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0a111c5858e69e15c99bf7d46ce329e23dcd7a2ba4925b5e77b1e270204d9f86",
      "rows": [
        {
          "name": "Output voltage",
          "symbol": "VOUT(S)",
          "kind": "electrical",
          "unit": "×VOUT(S)",
          "min": 0.98,
          "typ": null,
          "max": 1.02,
          "conditions": "VIN=VOUT(S)+2V, IOUT=10mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "IOUT=10mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 1000,
          "max": 1800,
          "conditions": "IOUT=1A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.01,
          "max": 0.02,
          "conditions": "VOUT(S)+2V≤VIN≤40V, IOUT=1mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 20,
          "max": 40,
          "conditions": "VIN=VOUT(S)+2V, 1mA≤IOUT≤300mA, VOUT(S)≤5.3V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Temperature stability",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -45,
          "typ": null,
          "max": 45,
          "conditions": "VIN=VOUT(S)+2V, IOUT=10mA, -40℃≤Ta≤85℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "GND pin current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "uA",
          "min": 0.8,
          "typ": 1.6,
          "max": 2.5,
          "conditions": "No load, 3.0≤VOUT(S)≤5.3",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "GND pin current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 480,
          "max": null,
          "conditions": "IOUT=100mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Shutdown current",
          "symbol": "ISH",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "VIN=40V, VEN=0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.2,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUTMAX",
          "kind": "electrical",
          "unit": "A",
          "min": 0.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Current limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.6,
          "max": null,
          "conditions": "VIN=VOUT(S)+2V, VOUT=0.9×VOUT(S)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Short circuit current",
          "symbol": "ISHORT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 230,
          "max": null,
          "conditions": "VIN=VEN=VOUT(S)+2V, VOUT=0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 72,
          "max": null,
          "conditions": "f=10Hz, VOUT(S)=3.6V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "f=100Hz, VOUT(S)=3.6V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 65,
          "max": null,
          "conditions": "f=1kHz, VOUT(S)=3.6V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN pin high-level voltage",
          "symbol": "VENH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.6,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN pin low-level voltage",
          "symbol": "VENL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN pin high-level current",
          "symbol": "IENH",
          "kind": "electrical",
          "unit": "uA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VIN=40V, VEN=VIN",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN pin low-level current",
          "symbol": "IENL",
          "kind": "electrical",
          "unit": "uA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VIN=40V, VEN=0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Over-temperature protection",
          "symbol": "OTP",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 155,
          "max": null,
          "conditions": "IOUT=10mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 45,
          "conditions": "Ta=25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation SOT223-3",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 1500,
          "conditions": "SOT223-3",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "Topr",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM",
          "symbol": "ESD HBM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -4000,
          "typ": null,
          "max": 4000,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 66,
          "max": null,
          "conditions": "SOT223-3",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
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  "author": {
    "name": "Ray",
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