Murata claims world's smallest 6A buck regulator

March 19, 2019 // By Nick Flaherty
Murata claims world's smallest 6A buck regulator
Murata claims to have developed the world's smallest, most efficient, fully integrated 6A DC-DC buck regulator.

Following on TDK's smallest 6A point of load regulator, Murata's  MYMGA1R86RELC2RA measures 12 mm x 9 mm x 2 mm and is designed for 2-cell, 3-cell and 12V point-of-load applications. It has an input voltage range of 5.5V–14.4V and a programmable output of 0.7V–1.8V up to 6A. 

The technology comes from the acquisition in 12017 of Arctic Sand by Murata's semiconductor division, pSemi. Artic had developed a two-stage power conversion architecture that enables much higher efficiencies and reduces the size of passive components required, enabling a significant reduction in solution size. It also integrates all passive components, including bulk output capacitance, to meet transient load requirements so that no additional external components are required for most applications. 

"Murata is bringing to market a new family of highly integrated DC-DC converters that set new standards for efficiency, size and performance," said Jim Cable, CEO at pSemi and global R&D director at Murata. "This development is a collaborative effort fueled by Murata's long-standing and acquired strengths in power conversion architecture, power module development, advanced 3D integrated packaging and passive components." With dimensions of (L × W × T), the module footprint is 25 percent less than the nearest competitive solution and has a 30 percent lower profile. Furthermore, this buck regulator does not need any additional external components to meet stringent transient requirements, and so the typical solution footprint is approximately 50 percent of any alternative product.

The peak efficiency is over 90 percent for 12V input to 1.8V output and the module sees a 5X reduction in input ripple, lower conducted and radiated EMI emissions and a wide temperature range of -40 to +105 ºC with derating. 

Target markets and applications include telecoms, base stations, networking switches, routers and micro-servers, SSDs, PCIE add-in cards and high- performance mobile computing platforms.

The product will be sampling in August and mass production is scheduled for later in 2019. Sample pricing will


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