中文说明：LTC3115-1是一个单片buck-boost转换器
English Description：
The LTC3115-1 is a monolithic buck-boost converter that can operate with input and output voltages from as low as 2.7V to as high as 40V. Four internal low resistance Nchannel DMOS switches minimize the size of the application circuit and reduce power losses to maximize efficiency. Internal high side gate drivers, which require only the addition of two small external capacitors, further simplify the design process. A proprietary switch control algorithm allows the buck-boost converter to maintain output voltage regulation with input voltages that are above, below or equal to the output voltage. Transitions between these operating modes are seamless and free of transients and subharmonic switching. The LTC3115-1 can be configured to operate over a wide range of switching frequencies, from