Buck, Boost, and Buck-Boost Converters

Renesas has many options for DC/DC converters, controllers and regulators with buck, boost and buck-boost topologies.
Buck Converters

What is a Buck or Step-Down Converter?

A buck converter, also known as a step-down converter, is a DC/DC power converter that provides voltage step down and current step up. The converter reduces the voltage when the power source has a higher voltage than Vin. A buck converter generally provides the most efficient solution with the smallest external components.

Unsure if a low powered linear regulator or highly efficient switching regulator is a better option for your design? Learn more about Linear vs. Switching Regulators.

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Boost Converters

What is a Boost or Step-up Converter?

Boost converters, also known as a step-up converters, are DC/DC power converters with an output voltage greater than its input voltage. The driver boosts the voltage of the power source that is less than the Vin.

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Buck-Boost Converters

What is a Buck-Boost Converter?

A buck-boost converter generates an output voltage either greater or less than the input voltage. The advantage of using a buck-boost solution is regulating the output voltage over the full power source voltage range. Buck-boost converter solutions usually have lower efficiency and a larger footprint than buck converter solutions.

Learn More About Renesas' ISL911xx Family of Buck-Boost/Boost Regulators

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PowerCompass

The PowerCompass? tool helps you start your design in the right direction, giving you tools to find Renesas parts that match your requirements, set up multiple rails if needed, perform high-level system analysis and generate reference design files.

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