Load switch offers programmable soft-start & discharge rate
The AP22800 is a 5V single-channel load switch, introduced by Diodes Incorporated, with programmable soft-start and discharge rate. The ultra-low on-resistance (19mΩ) N-channel switch reduces voltage drop and power dissipation and offers continuous current handling of 6.0A, providing tighter regulation of system power delivery in ultrabooks and tablets.
The AP22800 is simple to programme: start-up and discharge rates can be set using an external capacitor and external resistor, respectively. An open-drain ‘power good’ output flag is also provided to signal that the target output voltage has been achieved.
Designed to operate from 1.5 to 5V, the load switch has the flexibility to support 1.8, 2.5, 3.3 and 5V system rails. The device's 21µA quiescent current makes it suited for cell-backed distributed power systems, where power conservation is vital.
The load switch is provided in a thermally efficient, low profile DFN2116-8 package, which features a footprint of only 3.36mm2 and helps increase power density.
The AP22800 is available for $0.08 each in 1,000 unit quantities.
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