LTC3118 Buck-Boost DC/DC Converters Analog Devices Inc. LTC3118 Buck-Boost DC/DC Converters have a dual input and wide voltage range. The converters offer an intelligent, integrated, low-loss PowerPath™ control and unique power switch architecture. The low-noise, current mode architecture with a fixed 1.2MHz PWM provides efficient operation from either input source to a programmable output voltage. Flexible voltage capability of up to 18V and voltage margin makes the LTC3118 excellent for a wide variety of applications and power sources.