Diodes Incorporated has announced the introduction of the AP22913, a 2A single-channel, slew-rate-controlled load switch with true reverse current blocking for high-side load-switching applications.


Single-channel high-side load switches provide an effective way of applying or removing power to a load, particularly to removable peripherals powered through a USB port.

The AP22913A load switch incorporates true reverse current blocking, which removes the normal body diode unwanted current paths to provide a solution to load switching.

With a load current of up to 2A across a wide operating voltage range, the AP22913 is designed to deliver a typical Rds(on) of 92mΩ at 1.5V and 54mΩ at 5.0V. The firm claims this achieves maximum load current handling capacity with a low forward voltage drop.

The turn-on slew rate of the device is controlled internally to provide a soft-start feature for sensitive loads while the device also features an active-high enable input to enable load switching. To ensure true reverse current blocking when disabled and in its off state, the vin and vout terminals are completely isolated internally.


  • 1.4V to 5.5V wide input voltage range
  • Low on-resistance (X1-WLB0909-4):
    • 92mΩ typical @ 1.5V
    • 76mΩ typical @ 1.8V
    • 56mΩ typical @ 3.3V
    • 54mΩ typical @ 5V
  • Low on-resistance (SOT26):
    • 122mΩ typical @ 1.5V
    • 106mΩ typical @ 1.8V
    • 86mΩ typical @ 3.3V
    • 84mΩ typical @ 5V
  • High DC current capability up to 2A
  • Truly Reverse Current Block (TRCB)
  • Discharging resistor on VOUT when disabled
  • 1µA ultra-low quiescent current
  • Active-high control pin:
    • Minimum 1.1V VIH of ON
  • ESD protection:
    • 2kV human body model
    • 1kV charged device model
  • Package:
    • X1-WLB0909-4 with backside laminate
    • 0.9mm x 0.9mm, 0.5mm ball pitch
    • Standard green SOT26
  • Totally lead-free and fully RoHS compliant
  • Halogen and Antimony free

The AP22913 load switch is designed to operate from 1.4-5.5V and consumes a quiescent current of 1µA, making it suited for 1.8V, 2.5V, 3.3V, and 5V systems. With a maximum load current of 2A, the AP22913 is suitable for applications in smart phones, portable, wearable and medical devices, and navigation devices as well as notebooks and ultra-mobile PCs.


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