75V, 0.3A Synchronous Step-Down Converter AEC-Q100 Qualified

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The MPQ4569 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. A 5μA shutdown mode quiescent current in full temperature range 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 MPQ4569 is available in QFN-10 (3mmx3mm) and SOIC-8 EP packages.

Symmetry Electronics is an authorized Monolithic Power Systems distributor.


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20A Quiescent Current (Active mode)
Wide 4.5V to 75V Operating Input Range
1.2O/0.45O Internal Power MOSFETs
Programmable Soft-Start
FB-Tolerance: 1% at Room Temperature; 2% at Full Temperature.
Adjustable Output Voltage
1V Reference Voltage Output for QFN Package
Low Shutdown Mode Current: 5A
Available in QFN-10 (3mmx3mm) and SOIC-8 EP Packages
Available in AEC-Q100 Grade 1


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Monolithic Power Systems Datasheet

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