TPS2065D & TPS2069D Power Distribution Switches Texas Instruments TPS2065D & TPS2069D USB Power Distribution Switches are intended for applications such as USB where heavy capacitive loads and short circuits are likely to be encountered. The devices can continuously deliver up to 1A (TPS2065D) or 1.5A (TPS2069D) output current. Each device limits the output current to a safe level by operating in a constant-current mode when the output load exceeds the current limit threshold. This feature provides a predictable fault current under all conditions. The fast overload response time eases the burden on the main 5V supply to provide regulated power when the output is shorted. The power-switch rise and fall times are controlled to minimize current surges during turn-on and turn-off.