In summary, the Linear Technology LTC7860 has an input voltage operating range of 3.5V to 60V, extendable to 200V or higher with external circuitry. A programmable fault timer keeps the device below the safe peak operating temperature when power loss is at the highest levels, and optimizes component selection for normal mode rather than overvoltage transient or fault conditions. The LTC7860 protects devices in MIL-STD-1275 applications, such as operating from a 28V vehicle power bus which can reach up to 100V for as long as 500ms. It is ideal for industrial, avionics, and automotive power applications, including ISO-7637, as well as positive high voltage distributed power Hot Swap™ systems. Four temperature grades are available, extended and industrial –40°C to 125°C, automotive –40°C to 150°C, and military grade –55°C to 150°C.