The MAX1562/MAX1562H/MAX1563 single currentlimited switches provide up to 4A to power up to eight USB ports. They operate from a 4V to 5.5V input supply and consume only 40A of quiescent current when operating and only 3A in shutdown. The MAX1562/MAX1562H/MAX1563s' autoreset feature latches the switch off if the output is shorted, thereby saving system power. When the short is removed, the switch is reactivated. A fault-blanking feature enables the circuit to ignore momentary faults, such as those caused when hot swapping a capacitive load, preventing false alarms to the host system. Fault blanking also prevents fault signals from being issued when the device powers up the load.