MP2451DT 中文参数资料.pdf

MP2451 36V, 2MHz, 0.6A Step-Down Converter DESCRIPTION FEATURES The MP2451 is a high frequency (2MHz) step-  230μA Operating Quiescent Current down switching regulator with integrated  Wide 3.3V to 36V Operating Input Range internal high-side high voltage power MOSFET.  500mΩ Internal Power MOSFET It provides single 0.6A (or less) highly efficient  2MHz fixed Switching Frequency output with current mode control for fast loop  Internally compensated response.  Stable with Ceramic Output Capacitors The wide 3.3V to 36V input range  Internal Soft-Start accommodates a variety of step-down  Precision Current Limit Without Current applications in automotive input environment. A Sensing Resistor 3μA shutdown mode quiescent current allows  90% Efficiency use in battery-powered applications.  Output Adjustable from +0.8V to 0.8xVIN High power conversion efficiency over a wide  3μA Low Shutdown Supply Current load range is achieved by scaling down the  6-Lead SOT23 Package switching frequency at light load condition to APPLICATIONS reduce the switching and gate driving losses.  High Voltage Power Conversion Frequency fold-back helps prevent inductor