Use this high side switch and usb power distribution switch NCP382LD05AAR2G USB powered Ethernet switch from ON Semiconductor to control which one of your devices draws power. It only needs a voltage of at least 2.5 V while not exceeding 5.5 V to effectively power your circuit. Its current limit is 0.5 A. This component will be shipped in tape and reel packaging for effective mounting and safe delivery. This USB powered network switch has a minimum operating temperature of -40 °C and a maximum of 85 °C.