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Power/Alternative Energy??

POL converters available in SMD, SIP

Posted: 17 Apr 2009 ?? ?Print Version ?Bookmark and Share

Keywords:POL converters? converter DC/DC? SMD SIP packaging?

FDK Corp. introduces five new products to its DK Series of non-isolated point of load (POL) DC/DC converters. These small, low profile converters deliver up to 6A of output current at power densities up to 860W/inch3 in an SMD package and up to 4A of output current at power densities up to 760W/inch3 in SIP.

They have efficiencies up to 93 percent and provide a complete power conversion solution, without the need for external input and output capacitors. Under natural convection, these new DK Series converters deliver the full rated output current with no derating in ambient temperatures up to 85C in the SMD package, and up to 70C in the SIP.

Occupying a SMD footprint of less than 2cm? and a SIP footprint of less than 0.6cm?, the new converters provide considerable space savings over discrete on-board solutions. Their height of 3.4mm in the SMD package and 12.0mm in the SIP makes them particularly suitable for high density racks, blade systems and low-profile consumer applications. The DK Series converters are targeted toward telecommunications, data communications, computing and industrial applications where board space, cost, height, efficiency and reliable operation in elevated temperature environments are critical.

The new products consist of the FPDK12SR8003PSV (SMD 3A), FPDK12SR8004PSV (SMD 4A), FPDK12SR8006PSV (SMD 6A), FPDK12TR8003PSV (SIP 3A) and FPDK12TR8004PSV (SIP 4A). The 3A and 4A SMD packages measure 16.7mm x 10.2mm x 3.4mm; the 6A measures 16.7mm x 10.2mm x 4.4mm. The SIP measure 12.0mm x 10.0mm x 4.7mm. These converters operate from a 5.6Vdc to 14.0Vdc input and provide a tightly regulated programmable output voltage in the range of 0.8Vdc to 6.6Vdc. They are true single input converters in that they do not require an external VCC (bias) supply for operation. All models feature programmable output voltage, remote on/off, over-current and over-temperature protection, and start up into a pre-biased output. The SMD models additionally offer a power good signal.

"The DK Series enables FDK to bring high efficiency and high density single component power solutions to a wide and diverse range of market applications," said Apurba Roy, executive advisor at FDK.

All DK Series products are RoHS-compliant. They are manufactured using FDK's in-house manufacturing processes and systems in Japan. In quantities of 1,000 pieces, the FPDK12SR8003PSV and FPDK12TR8003PSV 3A converters are priced at $4.60; the FPDK12SR8004PSV and FPDK12TR8004PSV 4A converters are priced at $5.10, and the 6A FPDK12SR8006PSV is priced at $5.70. Lead time is six weeks. Samples are available now.

- Henri Arnold
EE Times Europe





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