Eighth-brick convertor boasts top power density

The SQT48T20120 is a 240W eighth-brick IBA convertor with an efficiency of 96%.

The SQT48T20120 is a 240W eighth-brick bus convertor with an efficiency of 96%.

The intermediate bus architecture (IBA) compatible product provides what is believed to be the industry's highest power density in a one-eighth or quarter-brick package, up to 300W/in3.

The SQT48T20120 operates from a regulated 48V DC (42-53V DC) input to provide a 4:1 proportional-ratio 12V DC output.

This optimised bus convertor provides superior performance at elevated temperatures with minimal derating.

In ambient conditions of 70C, with 200m/min linear airflow and 48VC input, these convertors are still capable of delivering up to 210W - a level of performance that exceeds some 300W quarter-bricks.

For higher output current requirements, these devices can also be paralleled.

The SQT48T20120's 22.8 x 58.4 x 9.5mm open-frame package does not require a heatsink and is assembled with 100% automation.

Additional features include compliance to the basic insulation requirements of EN60950, remote on/off, no-minimum-load operation, and an onboard input-differential LC filter.

Protection features include input undervoltage lockout, thermal shutdown, overvoltage and overcurrent.

Steve Goldman, Power-One's Chairman and CEO, commented: "This is another remarkable achievement in our IBA-focused Maxys product line".

"Just last quarter we introduced what we believed was the highest density quarter brick, and now we've followed up with the highest density eighth brick".

"These bricks are designed especially to augment our revolutionary S-One Digital IBA power system, including our programmable S-POL convertors and other industry standard POL convertors like our Y-Series".

"The technology that Power-One has developed in these last few years offers our customers unparalleled opportunities to increase the performance of their products".

In quantities of 1000 pieces, the SQT48T20120 is priced at $40.00.

Samples and production are available now.

A 5:1 ratio version rated at 25A will soon be available.

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