TPS2661x provides protection against hot short preventing excessive current flow and damage to the AIM in the event of a load resistor short or a current loop short. It also provides protection during a hot plug event. In the event of a short or a high voltage hot plug, there is a rapid buildup of load current. Due to limited bandwidth, the current limit amplifier cannot respond quickly to this. The device features a fast trip circuitry. It quickly responds to a rapid increase in load current in the event of short and turns off the internal FET, cutting off the load current. Post FET turn off, the device turns back on slowly, allowing the current-limit loop to regulate the output current to current limit