New synchronous step-down switching regulators achieve 95% efficiency
Brian Huffman and Milt Wilcox
Abstract
The LTC1148 and LTC1149 synchronous switching regulator controllers, which make high efficiency DC/DC conversion possible in a wide range of applications, are described.
Keywords
DC/DC converter
Synchronous switching regulator
LTC1148
LTC1149
The new LTC1148 and LTC1149 synchronous switching regu-lator controllers make high efficiency DC/DC conversion possible in a wide range of applications. These controllers share a current-mode architecture which combines synchronous switching for maximum efficiency at high currents with an automatic low current operating mode, called Burst Mode operation, which makes 90% efficiencies ...
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