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Product category: Power Supply ICs and Controllers
News Release from: Linear Technology Corp | Subject: LTC3785
Edited by the Electronicstalk Editorial Team on 30 January 2008

Regulator goes up or down with only an
inductor

Operating with four-switch synchronous rectification, the LTC3785 provides seamless transitions between the buck and boost operating modes.

Linear Technology has introduced the LTC3785, a 96% efficient buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage for powering tablet PCs, handheld instruments, wireless modems, portable media players and a wide variety of single- or dual-cell Li-ion or multicell alkaline/NiMH powered devices Medium-power buck-boost circuits have traditionally relied on transformers (SEPIC) or two cascaded DC/DC convertors, one for the step-up (boost) and one for the step-down (buck) conversion