Integrated Mosfet/drivers more efficient and smaller than discrete solutions

22 February 2006 Power Electronics / Power Management

Vishay has released two high-speed converter solutions that integrate the control Mosfet, the synchronous Mosfet, plus the driver circuit in a low-profile, high-performance PowerPAK MLF 10 x 10 mm package. The products simplify the single and multiphase DC-DC design process and provide 3% higher efficiency compared with discrete solutions, it claims. Intended for applications in servers, routers, point-of-load converters, and 3,3 V, 5 V, and 12 V intermediate bus architecture environments, the devices not only conserve board space and power, but also enable higher power ratings in a compact footprint. The integration of the Mosfets and driver serves to minimise the parasitic leakage inductance that can cause ringing and spikes at the switching node. The SiC714CD10, rated for input voltages from 3,3 V to 16 V, delivers up to 27 A of continuous output current in still air and is optimised for a 10% duty ratio. The SiC711CD10 is rated for input voltages from 3,3 V to 16 V and a 40% duty ratio, and it provides continuous output current up to 25 A.

www.vishay.com

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