ICW1236B33E8GQ1

{
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  "type": "component",
  "slug": "icw1236b33e8gq1",
  "title": "ICW1236B33E8GQ1",
  "brief": "ICW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power management (pmic)",
    "icw1236b33e8gq1",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "ICW1236B33E8GQ1",
    "manufacturer": "ICW",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0d4a8c85b7fbe06ab0f79697bfc4c618.pdf",
    "parts": {
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      "lbr": "icw1236b33e8gq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C5448743"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:45:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulator output pin; the output voltage is 3.3V by default (ADJ tied to GND) or set by an external divider R1/R2 with VOUT = VREF × (1 + R2/R1), and the output is limited to 1A."
      },
      {
        "number": "2",
        "name": "ADJ",
        "type": "input",
        "description": "Adjust pin: tie to GND for the internal 3.3V feedback, or connect an external resistor divider to set VOUT with a reference of 0.7V typical."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; must be decoupled to VIN with a 4.7µF or larger ceramic capacitor placed close to the device."
      },
      {
        "number": "4",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected; may be left floating or tied to GND."
      },
      {
        "number": "5",
        "name": "EN",
        "type": "input",
        "description": "Enable pin: the device turns on at 1.6V minimum and turns off at 0.4V maximum."
      },
      {
        "number": "6",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected; may be left floating or tied to GND."
      },
      {
        "number": "7",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected; may be left floating or tied to GND."
      },
      {
        "number": "8",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input pin; a 4.7µF or larger ceramic capacitor must be placed tightly between VIN and GND, with input voltage range 2V to 6V."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The ESOP-8 pin table in the datasheet text is garbled. The B-variant mapping (VOUT 1, ADJ 2, GND 3, ; The Exposed Pad is listed as GND but has no printed numeric pin number, so it is not included as a n; Selection guide (page 3) marks ICW1236B33E8GQ1 as having no PG function, so the PGOOD and BP pins th"
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        "at": "2026-10-27T01:44:51"
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        "pages": 14,
        "sha256": "8dfd6b56bc1ce98b",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 9,
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  "metadata": {
    "specs": {
      "Manufacturer": "ICW",
      "Package": "ESOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8dfd6b56bc1ce98b77bebe46a29afcc1ef280e738d52ca9959aa6f331933f9e9",
      "rows": [
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          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output voltage tolerance",
          "symbol": "VOUT(S)",
          "kind": "tolerance",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "IOUT=1mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Continuous output current",
          "symbol": "IOUT",
          "kind": "recommended_operating",
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          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VIN>2.1V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ground current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "VEN=VIN, no load",
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          "source": "datasheet"
        },
        {
          "name": "Ground current at load",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 390,
          "max": null,
          "conditions": "VEN=VIN, IOUT=100mA",
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        },
        {
          "name": "Shutdown current",
          "symbol": "ISHUT",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.01,
          "max": null,
          "conditions": "VEN=0",
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        },
        {
          "name": "Output current limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.4,
          "max": null,
          "conditions": "",
          "source_page": 6,
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        },
        {
          "name": "Current foldback",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 160,
          "max": 250,
          "conditions": "VEN=VIN, IOUT=1A, VOUT=3.3V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 3,
          "max": 15,
          "conditions": "VOUT(S)+1V≤VIN=VEN≤6V, IOUT=1mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "VIN=VEN=VOUT(S)+1.0V, 1mA≤IOUT≤1A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Temperature stability",
          "symbol": "ΔVOUT",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "VIN=VEN=VOUT(S)+1.0V, IOUT=1mA, -40℃≤TA≤125℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage tolerance",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.686,
          "typ": 0.7,
          "max": 0.714,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "ADJ pin current",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VADJ = VREF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "ADJ pin threshold",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.05,
          "typ": 0.1,
          "max": 0.2,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Enable start threshold voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.6,
          "typ": null,
          "max": null,
          "conditions": "Output ON",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Enable shutdown threshold voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "Output OFF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Shutdown pin current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.1,
          "max": 0.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output discharge resistance during shutdown",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "f=1kHz, IOUT=10mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 68,
          "max": null,
          "conditions": "f=10kHz, IOUT=10mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 47,
          "max": null,
          "conditions": "f=100kHz, IOUT=10mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 55,
          "max": null,
          "conditions": "f=1MHz, IOUT=10mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output noise voltage",
          "symbol": "VOUTN",
          "kind": "electrical",
          "unit": "µVRMS",
          "min": null,
          "typ": 115,
          "max": null,
          "conditions": "CBP = 1µF, VOUT=3.3V, f=10Hz ~100KHz",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown temperature",
          "symbol": "TSD",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 175,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown hysteresis",
          "symbol": "TSD_HYS",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 35,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input voltage absolute maximum",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output voltage absolute range",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "upper limit VIN+0.3",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM",
          "symbol": "ESD HBM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -4000,
          "typ": null,
          "max": 4000,
          "conditions": "HBM, printed ±4000",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "Topr",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
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