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95%-Efficiency Dual Synchronous Step-Down DC/DC Converter

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Linear Technology introduced the LT8616, a 42V input capable, high efficiency dual synchronous monolithic step-down switching regulator. Its dual channel design delivers independent 2.5A and 1.5A continuous current to outputs as low as 0.8V. A dual channel synchronous rectification topology delivers up to 95% efficiency while Burst Mode operation keeps quiescent current under 6.5µA (both channels enabled) in no-load standby conditions, making it ideal for always-on systems. Switching frequency can be programmed from 200kHz to 3MHz and is synchronizable throughout this range.

The LT8616’s 35ns minimum on-time enables 16VIN to 1.8VOUT step-down conversions, while switching at 2MHz helps designers avoid critical noise-sensitive frequency bands, such as AM radio while having a very compact solution footprint. Its 3.4-42V input voltage range makes it ideal for automotive applications which must regulate through cold-crank and stop-start scenarios.
www.linear.com

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