The MP2451 is a high frequency (2MHz) stepdown switching regulator with integrated
internal high-side high voltage power MOSFET.
It provides single 0.6A (or less) highly efficient
output with current mode control for fast loop
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
The MP2451 is available in the cost-effective
SOT23-6 and TSOT23-6 packages.
130μA Operating Quiescent Current
Wide 3.3V to 36V Operating Input Range
500mΩ Internal Power MOSFET
2MHz fixed Switching Frequency
Stable with Ceramic Output Capacitors
Precision Current Limit Without Current
> 90% Efficiency
Output Adjustable from +0.8V to 0.8xVIN
3μA Low Shutdown Supply Current
SOT23-6 and TSOT23-6 Packages
High Voltage Power Conversion
Industrial Power Systems
Distributed Power Systems
Battery Powered Systems
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