DC2879A

DC2879A demonstration circuit is a high efficiency, high power density hybrid converter. It can deliver 12V/25A with an input voltage from 36V to 60V (up to 65V during transients). This demo board features the LTM®4660, which uses an architecture that merges soft-switching switched capacitor topology with a traditional step-down converter to provide superior efficiency compared to the traditional switching architectures. It offers a high efficiency/high density and cost effective solution for nonisolated intermediate bus applications in power distribution, datacom and telecom. Due to its current mode control architecture, multiple LTM4660s can be operated in a parallel, multiphase configuration with excellent current sharing and low output voltage ripple to enable much higher power applications. Other benefits include low EMI emissions due to a soft switched front end and reduced MOSFET stress.

• LTM4660 also monitors system voltage, current and temperature for faults
• Stops switching and pulls the FAULT pin low when a fault condition occurs
• An onboard timer can be set for appropriate restart/retry times

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