New Low-Voltage, High-Side Load Switch

New Low-Voltage, High-Side Load Switch

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.

AP22913 typical application

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.

Features

  • 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.

The AP22913 is available in options including the AP22913CN4-7, which is housed in the X-WLB0909-4 package, and the AP22913W6-7, which is available in the SOT26 package, both in 1000 unit quantities.

www.diodes.com

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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