Diodes Incorporated

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SO 8

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

Back to Power Switches


1A Dual Channel Current-Limited Power Switch

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The AP2166 and AP2176 are integrated high-side power switches optimized for Universal Serial Bus (USB) and other hot-swap applications. The family of devices complies with USB 2.0 and available with both polarities of Enable input. They offer current and thermal limiting and short circuit protection as well as control°C rise time and under-voltage lockout functionality. A 7ms deglitch capability on the open-drain Flag output prevents false over-current reporting and does not require any external components. All devices are available in SO-8 and MSOP-8L-EP packages.


  • Dual USB port power switches
  • Over-current and thermal protection
  • 1.5A accurate current limiting
  • Reverse Current Blocking
  • 90mΩ on-resistance
  • Input voltage range: 2.7V – 5.5V
  • 0.6ms typical rise time
  • Very low shutdown current: 1μA (max)
  • Fault report (FLG) with blanking time (7ms typ)
  • ESD protection: 6KV HBM, 300V MM
  • Active high (AP2176) or active low (AP2166) enable
  • Ambient temperature range -40°C to 85°C
  • SO-8 and MSOP-8L-EP (Exposed Pad): Available in “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish / RoHS Compliant
  • UL Recognized, File Number E322375
  • IEC60950-1 CB Scheme Certified
  • Application(s)

  • Consumer electronics – LCD TV & Monitor, Game Machines
  • Communications – Set-Top-Box, GPS, Smartphone
  • Computing – Laptop, Desktop, Servers, Printers, Docking Station, HUB
  • Product Specifications

    Product Parameters

    Type OCP Switch
    AEC Qualified No
    Compliance (Only Automotive supports PPAP) Standard
    Maximum Continuous Output Current (A) 1
    (MAX) Maximum Current Limit Fixed (A) 1.9
    Adjustable Current Limit No
    Channels 2
    Enable Logic Active High
    Minimum Operating Voltage (V) 2.7
    Maximum Operating Voltage (V) 5.5
    Quiescent Current Typ (µA) 95
    RDS(ON) (VIN = 5V) Typ (mΩ) 90,100
    Reverse Current Block Yes
    Minimum Power Supply Voltage (V) 2.7
    Maximum Power Supply Voltage (V) 5.5
    Output Discharge No
    (TYP) Output Rise Time mS 0.6
    OCP Output Latch Off No
    OCP Flag Yes
    Power Good No
    Operating Ambient Temperature Range (°C) -40 to 85
    Overtemperature Protection Yes
    UL Certificate Yes

    Related Content


    Technical Documents

    Recommended Soldering Techniques


    RoHS CofC

    Product Change Notices (PCNs)

    A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

    PCN # Issue Date Implementation Date Subject
    PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site