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Tiny converters offer output voltage tracking

Posted: 23 Jun 2009     Print Version  Bookmark and Share

Keywords:DC-DC converter  output voltage tracking  blade systems  point-of-load 


FDK Corp. has announced the availability of three non-isolated, point-of-load (POL), DC-DC converters to its DK Series.

These very small, low profile surface mount devices deliver up to 6A of output current at power densities up to 860 watts/cubic inch, with efficiencies up to 93%. Operating from a 5.6Vdc to 14.0Vdc input bus with a tightly regulated programmable output voltage of 0.8Vdc to 6.6Vdc, the new converters incorporate an output voltage tracking function. They fit a wide range of telecommunications, data communications, computing, industrial, and consumer applications where board space, cost, profile, efficiency, and reliable operation in elevated temperature environments are critical.

The DK Series converters provide complete power conversion solutions without the need for external input and output capacitors. They are true single input converters in that they do not require an external Vcc (bias) supply for operation. Under natural convection, the 3A and 4A converters deliver the full rated output current with no derating in ambient temperatures up to 85°C while the 6A converter delivers full rated output current with no derating up to 80°C.

The FPDK12SR8003PSS (3A), FPDK12SR8004PSS (4A), and FPDK12SR8006PSS (6A) converters come in a 0.657" x 0.402" (16.7 x 10.2mm) SMD package. Occupying a footprint of less than 0.3in2 (2cm2), they offer significant space savings over discrete on-board solutions at a competitive price. Their low height of 0.134" (3.4mm), for the 3A and 4A converters, and 0.173" (4.4mm), for the 6A converter, makes them particularly suitable for high density racks, blade systems, and low profile consumer applications.

These DK Series converters feature programmable output voltage, remote ON/OFF, over-current and over-temperature protection, a power good signal, and start up into a pre-biased output.

All DK Series products are RoHS compliant. In quantities of 1,000 pieces, the FPDK12SR8003PSS is priced at Rs.244.93 ($5.00), the FPDK12SR8004PSS at Rs.269.43 ($5.50), and the FPDK12SR8006PSS is priced at Rs.298.82 ($6.10). Lead time is 8 weeks. Samples are available now.

Get related application notes and technical articles on Power Design India.

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