In summary, the LTC4233 and LTC4234 are 10A and 20A hot swap controllers with an integrated MOSFET and current sensing. They integrate the two most critical hot swap components, the power MOSFET and sense resistor, reducing design time and saving PCB area. The internal MOSFET’s SOA is production-tested and specified to ensure a rugged hot-plug solution. A current monitoring output enables measurement of load current with an external analog-to-digital converter. A single external resistor can be used to reduce the current limit from its default, allowing quick adjustment for dynamic load changes and various applications. The LTC4233 and LTC4234 controllers are offered in pin-compatible 38-pin 5mm x 9mm QFN packages.