LONDON Murata Manufacturing was the largest supplier of DC-DC converters modules last year according to market research group IMS (Wellingborough, England), with a global share of 12.5 percent of a market valued at $2.9 billion.
In second place, according to IMS, was Delta Electronics with 7.8 percent, followed by Emerson, which took 7.3 percent.
They were followed by TDK-Lambda (6.8 percent) and Power-One, at 6.1 percent.
The company estimates the DC-DC segment of the power converter modules business will grow by 5.4 percent this year.
Murata's rise to the top was mainly because of its acquisition last year of C&D Technologies' power division. In the previous rankings from IMS, Emerson was the market leader.
"The DC-DC converter module market continues to be a tough environment, with high price erosion, new entrants emerging from Asia, and increasing competition from discrete solutions," commented David Dewan, power supply market analyst at IMS Research.
"The standard board-mount DC-DC converter module business is becoming increasingly commoditized and the likely implementation of the IPC 9592 guidelines by Tier-1 suppliers will drive standardization and could compound price pressures," Dewan added.
Despite this, the non-isolated market was estimated to have seen large growth in 2007, growing 12.3 percent year-on-year, and accounting for nearly a quarter of the total DC-DC converter module market.
It is projected to account for nearly 30 percent of the market by 2013.