The AP1201 series are integrated high-side power switch with enable, flag functions and adjustable current-limit 0.7A to 1.25A, optimized for self-powered and bus-powered Universal Serial Bus (USB) applications. The AP1201 series support the following USB requirements: each switch channel supplies up to 700mA as required by USB downstream devices; the switch's low on-resistance meets USB voltage drop requirements; fault current is limited to typically 900mA~1.25A; and a flag output is available to indicate fault conditions to the local USB controller. Soft start eliminates the momentary voltage drop on the upstream port that may occur when the switch is enabled in bus-powered applications.