New Industry Products

Murata Releases New Series Of 1W DC-DC Converters

November 18, 2008 by Jeff Shepard

Murata Power Solutions has introduced two new series of isolated 1W, dc-dc converters that are said to set new standards for efficiency, miniaturization and reliability. The single output MEV and dual output MEA series are the new high performance versions of the company’s NMV and NMA series.

With efficiency levels from 84%, said to be an improvement of 10% versus the existing products, the MEV and MEA series respond to the current industry emphasis on minimizing power usage. Improved load regulation performance of <5% makes the new dc-dc converters well suited for use in applications where output voltage variation can not be tolerated. The overall load regulation tolerance envelope has been reduced from 17.5 to 9%.

The MEV series is suitable for providing local supplies on control system boards with the added benefit of 3kVdc galvanic isolation to reduce switching noise. The MEA series meanwhile has 1kVdc isolation and is excellent for providing dual rail supplies.

Supplied in a UL 94V-0 industry standard pinout SIP 7 package measuring 19.50mm (0.77in.) x 6.0mm (0.236in.) x 10mm (0.394in.) high, the RoHS compliant MEV and MEA series have a power density of 0.85W/cm³. Both ranges offer input voltages of either 5 or 12V; output voltages range from 5 to 15V. The fully encapsulated design uses toroidal magnetics, ceramic substrates and capacitors. No external components are required.

The MEV and MEA series offer wide -40 to +85°C temperature performance at full 1W load with free air convection cooling.