MP1484EN Synchronous Rectified Step-Down Converter The MP1484 is a monolithic synchronous buck regulator. The device integrates top and bottom 85mΩ MOSFETS that provide 3A of continuous load current over a wide operating input voltage of 4.75V to 18V. current mode control provides a fast transient response and cycle-by-cycle current limit.

An adjustable soft-start prevents inrush current at turn-on and in shutdown mode, the supply current drops below 1µA. The MP1484EN is PIN compatible with the MP1482 2A 18V synchronous step-down converter.

Feature:

3A continuous output current

Wide 4.75V to 18V operating input range

Integrated 85mΩ power MOSFET switches

Output adjustable from 0.925V to 20V

Up to 95% efficiency

programmable soft-start

Stable with low ESR ceramic output capacitors

Fixed 340KHz frequency

Cycle-by-cycle over current protection

Input under-voltage lockout

Thermally enhanced 8-pin SOIC package

Applications:

FPGA, ASIC, DSP power supplies

LCD TV

Green electronics appliances

Notebook computers