AP2181SG-13

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  "type": "component",
  "slug": "ap2181sg-13",
  "title": "AP2181SG-13",
  "brief": "Diodes Incorporated Power Distribution Switches, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "power management (pmic)",
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  "component": {
    "mpn": "AP2181SG-13",
    "manufacturer": "Diodes Incorporated",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Power Distribution Switches",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226512533626880",
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    "distributor_links": {
      "lcsc": "C780754"
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    "distributor_check": {
      "checked_at": "2026-10-18T09:13:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
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    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin for the device; the datasheet also specifies the exposed pad for the MSOP/U-DFN packages, but for SO-8 pin 1 is the only ground connection."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "power_in",
        "description": "Voltage input pin, which must be tied together externally with pin 3; the recommended input voltage is 2.7V to 5.5V with an absolute maximum of 6.5V."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "power_in",
        "description": "Voltage input pin, which must be tied together externally with pin 2; the recommended input voltage is 2.7V to 5.5V with an absolute maximum of 6.5V."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Active-low enable input on the AP2181 (active-high on AP2191), with VIL maximum 0.8V and VIH minimum 2.0V, and absolute maximum voltage 6.5V."
      },
      {
        "number": "5",
        "name": "FLG",
        "type": "output",
        "description": "Open-drain over-current and over-temperature fault report output that goes active low after a nominal 7 ms deglitch timeout, with absolute maximum voltage 6.5V."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "power_out",
        "description": "Voltage output pin, which must be tied together externally with pin 7; the output voltage is limited to VIN + 0.3V absolute maximum."
      },
      {
        "number": "7",
        "name": "OUT",
        "type": "power_out",
        "description": "Voltage output pin, which must be tied together externally with pin 6; the output voltage is limited to VIN + 0.3V absolute maximum."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; the datasheet recommends tying this pin to the OUT pins."
      }
    ],
    "provenance": {
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          "extractor flagged: Ordering code AP2181SG-13 uses package code S, which the datasheet lists as SO-8 (ordering informati; Enable polarity is active low for AP2181 per the Available Options table and the Pin Descriptions; t; Pin 4 maximum voltage of 6.5V comes from the absolute maximum VEN rating on page 3 and is a rating l"
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  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
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    "characteristics": {
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          "name": "Input UVLO",
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          "min": 1.6,
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        {
          "name": "Input Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 45,
          "max": 70,
          "conditions": "Enabled, IOUT = 0",
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        {
          "name": "Input Shutdown Current",
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        {
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          "kind": "electrical",
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          "name": "Switch On-Resistance (SO-8)",
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          "max": 115,
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          "name": "Switch On-Resistance (SO-8)",
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          "name": "Over-Load Current Limit",
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          "kind": "electrical",
          "unit": "A",
          "min": 1.6,
          "typ": 2.1,
          "max": 2.6,
          "conditions": "VIN = 5V, VOUT = 4.5V, CL = 120µF, -40°C ≤ TA ≤ +85°C",
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        {
          "name": "EN Input Logic Low Voltage",
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          "max": 0.8,
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          "name": "EN Input Logic High Voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "VIN = 2.7V to 5.5V",
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        {
          "name": "EN Input Leakage",
          "symbol": "ISINK",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VEN = 5V",
          "source_page": 4,
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        {
          "name": "Output Turn-On Rise Time",
          "symbol": "TR",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 0.6,
          "max": 1.5,
          "conditions": "CL = 1µF, RLOAD = 10Ω",
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        {
          "name": "Output Turn-Off Fall Time",
          "symbol": "TF",
          "kind": "electrical",
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          "min": null,
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          "max": 0.1,
          "conditions": "CL = 1µF, RLOAD = 10Ω",
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        {
          "name": "FLG Output FET On-Resistance",
          "symbol": "RFLG",
          "kind": "electrical",
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          "typ": 20,
          "max": 40,
          "conditions": "IFLG = 10mA, CL = 100µF",
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        {
          "name": "FLG Blanking Time",
          "symbol": "TBlank",
          "kind": "electrical",
          "unit": "ms",
          "min": 4,
          "typ": 7,
          "max": 15,
          "conditions": "CIN = 10µF, CL = 100µF",
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        {
          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
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          "typ": null,
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        {
          "name": "Operating Ambient Temperature",
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          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
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          "name": "High-Level Input Voltage on EN or EN",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "Max printed as VIN",
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        {
          "name": "Low-Level Input Voltage on EN or EN",
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          "kind": "recommended_operating",
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          "min": 0,
          "typ": null,
          "max": 0.8,
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        {
          "name": "ESD HBM Protection",
          "symbol": "ESD HBM",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "Human Body Model",
          "source_page": 3,
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        {
          "name": "ESD MM Protection (U-DFN2018-6, SO-8)",
          "symbol": "ESD MM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Machine Model, for U-DFN2018-6, SO-8 packages",
          "source_page": 3,
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        {
          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6.5,
          "conditions": "",
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        {
          "name": "Enable and Flag Voltage",
          "symbol": "VEN, VFLG",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJ(MAX)",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
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        {
          "name": "Storage Temperature Range",
          "symbol": "TST",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "Note 4: Diodes qualified range; UL recognized rating -30°C to +70°C",
          "source_page": 3,
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        },
        {
          "name": "Thermal Resistance Junction-to-Ambient (SO-8)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 110,
          "max": null,
          "conditions": "Note 5: device mounted on FR-4, 2oz copper, minimum recommended pad layout",
          "source_page": 4,
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