Overvoltage events can occur due to power adapter failure or faults, or when hot-plugging an AC adapter into a device’s power input. Inadvertently plugging the wrong power adapter into a device can potentially cause damage from overvoltage or negative supply voltage. In these instances, proper overvoltage and overcurrent protection is essential for product reliability, customer satisfaction and consumer safety. This table summarizes the overvoltage & overcurrent protection devices in the LTC436x family. The LTC436x overvoltage protection family bring a number of advantages to low voltage, portable applications. All devices feature 2% accurate 5.8V overvoltage protection with fast shutdown of 1µs to protect low voltage electronics from damage. High input overvoltage protection of 80V with the LTC4360 and LTC4361, and 28V with the LTC4362,  provides protection from high voltage transients without requiring transient voltage suppressors or input capacitors in most applications. Inductive cable transients are absorbed by the MOSFET and load capacitance. In addition, the LTC4362’s internal MOSFET has low on resistance for minimizing power loss through the switch. Reverse voltage protection is achieved using a dedicated pin to control an external P-channel MOSFET at the input. All devices (excluding LTC4360-2) feature a shutdown mode which gently puts the device into a low power mode, regardless of the input voltage, providing a low power dissipation mode for power-critical portable applications. The latch-off or auto-retry features of the LTC4361 and LTC4362 provide flexibility to select handling of an overcurrent fault.