The LT8610 and LT8611 are 42V, 2.5A synchronous step-down regulators that meet the stringent high input voltage and low output voltage requirements of automotive, industrial and communications applications. To minimize external components and solution size, the top and bottom power switches are integrated in a synchronous regulator topology, including internal compensation. The regulator consumes only 2.5µA quiescent current from the input source even while regulating the output.