The MP2452 is a high frequency (1MHz) stepdown switching regulator with integrated internal high-side high voltage power MOSFET. It provides up to 1A highly efficient output current with current mode control for fast loop response. The wide 3.3V to 36V input range accommodates a variety of step-down applications in automotive input environment. A 3µA shutdown mode quiescent current allows use in battery-powered applications. High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses. Frequency fold-back helps prevent inductor current runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation. The MP2452 is available in the 2mm x 3mm QFN8 package.1A Continuous Load Current 130 µA Operating Quiescent Current Wide 3.3V to 36V Operating Input Range 500 m? Internal Power MOSFET 1MHz fixed Switching Frequency Internally compensated Stable with Ceramic Output Capacitors Internal Soft-Start > 90% Efficiency +0.794V FB Reference Voltage Output Adjustable from +0.794V to 33V 3µA Low Shutdown Supply Current 2mm x 3mm QFN8 Package