3MHz Micropower Synchronous Boost Converters Deliver 3W from Two Cells in a Tiny MSOP Package

摘要

Portable electronic devices operating from one or more alkaline or nickel-metal-hydride cells require a boosted supply that is both small and efficient. Linear Technology''s new LTC~®3401 and LTC3402 are high frequency micropower synchronous boost converters that operate from an input voltage below 1V and deliver up to 1A of output current from two cells. DC/DC efficiency can be as high as 97%. The operating frequency, output voltage and Burst Mode™ operation are all user programmable, allowing these products to fit in various applications where size considerations must be balanced against efficiency. Furthermore, all of this functionality is packed into a small, thermally enhanced MSOP-10 package.