Monolithic Power Systems MP2452

Description

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 loopresponse.The wide 3.3V to 36V input range accommodates a variety of step-down applications in automotive input environment. A 3µA shutdown modequiescent 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.

Features

• 1A Continuous Load Current
• 130 µA Operating Quiescent Current
• Wide 3.3V to 36V Operating Input Range
• 500 mΩ 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

Typical applications

• Distributed Power Systems
• Battery Powered Systems
• Automotive Systems
• High Voltage Power Conversion
• Industrial Power Systems

More information

• Datasheet
• IC product information