DS8571-33S5

{
  "schema_version": 1,
  "type": "component",
  "slug": "ds8571-33s5",
  "title": "DS8571-33S5",
  "brief": "DSTECH Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, 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": [
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    "power management (pmic)",
    "ds8571-33s5",
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  "component": {
    "mpn": "DS8571-33S5",
    "manufacturer": "DSTECH",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3e040ee0f1bc3c44999e362f2c652574.pdf",
    "parts": {
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      "lbr": "ds8571-33s5.lbr"
    },
    "distributor_links": {
      "lcsc": "C48533027"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T00:39:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply voltage; the recommended operating input range is 2.3V to 6V, with a 1µF or larger input capacitor placed close to the VIN and GND pins."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the regulator; the input and output capacitor ground connections must return to this pin through a short, wide copper trace."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable control input that shuts the regulator down when pulled low; the datasheet gives VIH of 1.0V (rising) and VIL of 0.4V (falling), with absolute maximum rating of -0.3V to 6V on EN to GND."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection on the non-SNS SOT-23-5 variant; leave unconnected."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output (3.3V for the DS8571-33 variant), stable with a ceramic or tantalum output capacitor between 1µF and 22µF with a minimum 1mΩ ESR, placed close to the VOUT and GND pins."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The page 3 pin-function table is column-merged and ambiguous when read as text, so the SOT-23-5 assi; The text says the output is stable with 1µF to 22µF capacitors but does not state the VOUT pin's abs"
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  "metadata": {
    "specs": {
      "Manufacturer": "DSTECH",
      "Package": "SOT-23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    },
    "appearance": {
      "contacts": {
        "quote": "must be back to the DS8571 ground pin using as wide and as short of a copper trace as is practical.",
        "page": 12,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
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    "characteristics": {
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        {
          "name": "Supply Voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 2.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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        },
        {
          "name": "DC Output Voltage Accuracy",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "ILOAD =0.1mA",
          "source_page": 7,
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        },
        {
          "name": "Output Current Limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "mA",
          "min": 301,
          "typ": 550,
          "max": null,
          "conditions": "VOUT = 0V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Ground Current",
          "symbol": "ISD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.1,
          "max": 0.5,
          "conditions": "VEN = 0V, VOUT = 0V",
          "source_page": 7,
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        },
        {
          "name": "EN Input Current",
          "symbol": "IEN",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 10,
          "max": 100,
          "conditions": "VEN = 5V",
          "source_page": 7,
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        },
        {
          "name": "VIN to GND",
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          "conditions": "",
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        },
        {
          "name": "VOUT, EN to GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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        },
        {
          "name": "VOUT to VIN",
          "symbol": "",
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          "unit": "V",
          "min": -6,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 6,
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        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -60,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Lead Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10 sec.",
          "source_page": 6,
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        },
        {
          "name": "Junction Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "ESD Susceptibility HBM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "HBM",
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          "name": "ESD Susceptibility MM",
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          "name": "ESD Susceptibility CDM",
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          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "CDM",
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        },
        {
          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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        {
          "name": "Junction Temperature Range",
          "symbol": "",
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          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
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        {
          "name": "Ambient Temperature Range",
          "symbol": "",
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          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "Dropout Voltage (VOUT ≥ 3V)",
          "symbol": "VDROP_3V",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.06,
          "max": null,
          "conditions": "ILOAD =100mA (Note 3); VOUT ≥ 3V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Ground Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "ILOAD = 0mA",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Enable Threshold Voltage (EN Rising)",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "EN Rising",
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        {
          "name": "Enable Threshold Voltage (EN Falling)",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "EN Falling",
          "source_page": 7,
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        },
        {
          "name": "Line Regulation",
          "symbol": "ΔLINE",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.3,
          "max": null,
          "conditions": "ILOAD =30mA, 2.5V ≤ VIN ≤ 5.5V or (VOUT + 0.2V) ≤ VIN ≤ 5.5V",
          "source_page": 7,
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        },
        {
          "name": "Load Line",
          "symbol": "ΔLOAD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "1mA ≤ ILOAD ≤ 300mA",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Temperature",
          "symbol": "TSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "ILOAD =10mA",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Hysteresis",
          "symbol": "ΔTSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Discharge Resistance",
          "symbol": "RDC",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "EN = 0V, VOUT = 0.1V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance SOT-23-5 (junction-to-ambient)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 220,
          "max": null,
          "conditions": "Measured at TA = 25°C on DSTECH EVB board (Note 2)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum Power Dissipation SOT-23-5 (datasheet calculation)",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.45,
          "conditions": "TA=25°C, DS-Tech PCB; (125°C − 25°C) / 220°C/W",
          "source_page": 12,
          "source": "datasheet"
        }
      ]
    }
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    "name": "Ray",
    "email": "[email protected]"
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