The LTC4234 from Analog Devices is a robust Hot Swap Controller that is ideal for high-availability servers, solid-state drives, and industrial applications. It requires an input voltage of 2.9 - 15 V and an input current of less than 3 mA. This controller features a production-tested and guaranteed 20 A safe operating area (SOA) to withstand the stresses typically found in hot-swap scenarios. It enables the safe insertion and removal of a board from a live backplane. This controller includes current and temperature monitoring outputs, thermal protection, under-voltage lockout (UVLO) and over-voltage protection circuitries, a power good indicator, and fault outputs, thereby providing users with a comprehensive set of protection and monitoring capabilities. It also offers precise inrush current control, a highly accurate current limit with foldback protection, and dynamic adjustability through the ISET pin. This hot-swap controller is available in a surface-mount package that measures 9 x 5 mm.