The TPS27SA08 device implements a current limit foldback feature that is designed to protect the device in the case of a long-term fault condition. If the device undergoes three consecutive fault shutdown events (any of thermal shutdown, current limit, or energy limit), the current limit will be reduced to half of the original value. The device will revert back to the original current limit threshold if either of the following occurs:

• The device goes to Standby Delay.
• The switch turns-on and turns-off without any fault occurring.