18V/3A Sync. Step-Down Converter

The JW®5393 and JW®5393F are monolithic buck switching regulators based on I2 architecture for fast transient response. Operating with an input range of 4.5V~18V, JW5393 and JW5393F deliver 3A of continuous output current with two integrated N-Channel MOSFETs.

The internal synchronous power switches provide high efficiency without the use of an external Schottky diode. At light loads, JW5393 operates in low frequency to maintain high efficiency. JW5393 and JW5393F guarantee robustness with output short protection, thermal protection, current run-away protection and input under voltage lockout. JW5393 and JW5393F are available in SOT563 package, which provide a compact solution with minimal external components.

l 4.5V to 18V operating input range 3A output current

l Up to 96% efficiency

l PFM mode (JW5393) at light load

l FCC mode (JW5393F) at light load

l 600kHz switching frequency

l Internal soft-start

l Input under voltage lockout

l Current run-away protection

l Output short protection

l Thermal protection

l Available in SOT563 package  

l Distributed Power Systems

l Networking Systems

l FPGA, DSP, ASIC Power Supplies

l Green Electronics/ Appliances

l Notebook Computers