Monolithic Power Systems MP4569
The MP4569 is a step-down switching regulator with integrated high-side/low-side, high-voltage power MOSFETs. It provides a highly efficient output of up to 0.3A. The wide 4.5V to 75V input range accommodates a variety of step-down applications in automotive environment.DESCRIPTION
A 3.5μA shutdown mode quiescent current is good for battery-powered applications. It allows for high power conversion efficiency over a wide load range by scaling down the switching frequency under light-load condition to reduce the switching and gate driver losses. The switching frequency during start-up and short circuit also can be scaled down to prevent inductor current runaway. Thermal shutdown provides reliable, fault-tolerant operation. The MP4569 is available in QFN-10 (3mmx3mm) and SOIC-8 EP packages. TYPICAL APPLICATION MP4569 75V, 0.3A Synchronous Step-Down ConverterFEATURES
● 20μA Quiescent Current (Active mode)● Wide 4.5V to 75V Operating Input Range
● 1.2Ω/0.45Ω Internal Power MOSFETs
● Programmable Soft-Start
● FB-Tolerance: 1% at Room Temperature; 2% at Full Temperature.
● Adjustable Output
● 1V Reference Voltage Output for QFN Package
● Low Shutdown Mode Current: 3.5μA
● Available in QFN-10 (3mmx3mm) and SOIC-8 EP Packages
APPLICATIONS
● Automotive Systems● Industrial Power Systems
● Distributed Power Systems
● Battery Powered Systems All MPS parts are lead-free and adhere to the RoHS directive.