Diodes Incorporated

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Single Slew Rate Controlled Load Switch

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The AP2281 slew rate control°C load switch is a single P-channel MOSFET power switch designed for high-side load-switching applications. The MOSFET has a typical RDS(ON) of 80mΩ at 5V, allowing increased load current handling capacity with a low forward voltage drop. The turn-on slew rate of the device is control°C internally. The AP2281 load switch is designed to operate from 1.5V to 6V, making it ideal for 1.8V, 2.5V, 3.3V, and 5V systems. The typical quiescent supply current is only 0.01uA.


  • Wide input voltage range: 1.5V – 6V
  • Low RDS(ON): 80mΩ typical @ 5V
  • Turn-on slew rate control°C
  • AP2281-1: 1ms turn-on rise time
  • AP2281-3: 100us turn-on rise time with internal discharge
  • Very low turn-on quiescent current: << 1uA
  • Fast load discharge option
  • Temperature range -40°C to 85°C
  • SOT26 and DFN2018-6: Available in “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish/ RoHS Compliant
  • Application(s)

  • Smart Phones
  • PDA
  • Cell Phones
  • GPS Navigators
  • PMP/MP4
  • Notebook and Pocket PC
  • Product Specifications

    Product Parameters

    Type Load Switch
    AEC Qualified No
    Compliance (Only Automotive supports PPAP) Standard
    Maximum Continuous Output Current (A) 2
    (MAX) Maximum Current Limit Fixed (A) Not Limited
    Channels 1
    Enable Logic Active High
    Minimum Operating Voltage (V) 1.5
    Maximum Operating Voltage (V) 6
    Quiescent Current Typ (µA) 0.01
    RDS(ON) (VIN = 5V) Typ (mΩ) 80
    Reverse Current Block No
    Minimum Power Supply Voltage (V) 1.5
    Maximum Power Supply Voltage (V) 6
    Output Discharge Yes,No
    (TYP) Output Rise Time mS 0.1,1.0
    OCP Flag No
    Power Good No
    Operating Ambient Temperature Range (°C) -40 to 85
    Overtemperature Protection Yes
    UL Certificate No

    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