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1/16th brick DC-DC converters for high-volume wireless and microwave designs

New Products |
By Nick Flaherty

The PKU4611A and PKU4617Ay have a wide output trim range for low-power radio designs that require a 5V to 7V supply.

The design of the converter provides a relatively flat component landscape for easy cooling within a sealed box by using thermal pads and makes manufacturing simpler, reducing the overall system cost. The converters are provided in a low-profile sixteenth-brick form factor, measuring 33.02 x 22.86 x 8.4mm (1.30 x 0.90 x 0.33in).

The efficiency is typically 94% at half load and 5V output voltage. With an input voltage range of 36V to 60V, both variants provide up to 60W output power: the PKU4611A at up to 5V/12A, and the PKU4617A at up to 6V/10A.

The new devices are aimed at small cell and microwave applications requiring a 5V to 7V bus at up to 60W and 2250V isolation in a sealed box. In particular, they are well suited to small cell applications for in-building wireless access, and outdoor microwave equipment supporting mobile broadband such as 3G, 4G and 5G.

“With these new converters, Flex Power Modules has focused our attention on optimizing cost wherever possible – delivering a cost-efficient solution, without any compromise on quality, thermal performance or reliability,” said Olle Hellgren, Director of Product Management and Business Development at Flex Power Modules.   

The modules provide 2250V DC input-to-output isolation, and meet safety requirements according to IEC/EN/UL 62368-1 with a mean time between failures (MTBF) of 5.2 million hours. The PKU-A series is available in OEM quantities. 

www.flex.com

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