The RT9711A/B/C/D are cost-effective, low voltage, singleN-MOSFET high-side power switches, optimized for selfpoweredand bus- powered Universal Serial Bus (USB)applications. The RT9711 series are equipped with acharge pump circuitry to drive the internal MOSFET switch.The switch's low RDS(ON), 80mΩ, meets USB voltage droprequirements. A flag output is available to indicate faultconditions to the local USB controller.Additional features include soft-start to limit inrush currentduring plug-in, thermal shutdown to prevent catastrophicswitch failure from high-current loads, under-voltagelockout (UVLO) to ensure that the device remains offunless there is a valid input voltage present, fault currentis limited to typically 2.5A for RT9711A/B in dual portsand 1A for RT9711C/D in single port in accordance withthe USB power requirements, lower quiescent current as25μA making this device ideal for portable battery-operatedequipment.The RT9711 series are available in SOT-23-5, TSOT-23-5,SOP-8 and MSOP-8 packages fitting different aspect ofbroad applications.