EJW5080 18V/8A Sync. Step-Down Converter


The EJW5080 is a monolithic buck switching regulator based on constant-on time architecture for fast transient

response. Operating with an input range of 3.3V~18V, EJW5080 delivers 8A 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, the regulator operates in low frequency to maintain high efficiency and

low output ripples. EJW5080 guarantees robustness with output short protection, thermal protection, current run-

away protection, input under voltage lockout, hot-plug in protection, and FB short protection. EJW5080 is available in QFN3*4 package, which provides a compact solution with minimal external components.


◆3.3V to 18V operating input range

◆8A output current

◆High efficiency (>85%) at light load

◆Programmable switching frequency

◆Tracked soft-start

◆Input under voltage lockout

◆Hot-plug in protection

◆Feedback short protection

◆Current run-away protection

◆Output short protection

◆Thermal protection

◆Available in QFN3*4 package


◆Distributed Power Systems

◆Networking Systems

◆FPGA, DSP, ASIC Power Supplies

◆Green Electronics/ Appliances

◆Notebook Computers