Renesas' portfolio of DC/DC converters include linear regulators, switching regulators, controllers, PMICs, and power modules. These product families cover a wide range of topologies including buck, boost and buck/boost.

For automotive products, please see Automotive Power Management.

Cost vs. Complexity Tradeoffs of Power Management Parts

Cost Complexity Topology Legend Description
$ star Linear regulators (LDO) Single and multi-output linear regulators/LDOs
$$ starstar Buck Regulators (Integrated FETs) Single and multi-output buck regulators with controller, driver and power FETs in one package
$$ starstar Buck-boost Regulators (Integrated FETs) Single and multi-output buck-boost regulators with controller, driver and power FETs in one package
$$ starstar Boost Regulators (Integrated FETs) Single and multi-output boost regulators with controller, driver and power FETs in one package
$$$$$ star Power Modules (Integrated Inductor & FETs) Fully integrated buck module with controller, driver, power FETs and inductor in one package
$$ starstarstarstar Buck Controllers (External FETs) Single and multiple-output buck controllers with and without drivers on board
$$$ starstarstarstarstar Analog Multiphase DC/DC Switching Controllers Multiple phase buck controllers with and without drivers on board
$$$$ starstarstarstar Power Management ICs (PMIC) Multi-output buck and boost controllers, regulators, LDOs and other features for specific power applications

Get started with your power design using the PowerCompass Tool.

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.

Boost Converters

What is a Boost or Step-up Converter?

Boost converters, also known as 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.

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.


Title language Type Format File Size Date
AN1663: Designing a Buck Converter Application Note PDF 279 KB
Industrial Power Management Brochure 日本語 Brochure PDF 3.51 MB
Doing More with Buck Regulator ICs White Paper PDF 1.07 MB
How to Improve DC/DC Converter Performance with Phase Shifting Time Delay White Paper PDF 531 KB
Achieve up to 99% Efficiency in a Robust Battery Backup System Using a True Bidirectional Buck-Boost Controller 日本語, 简体中文 White Paper PDF 351 KB
How to Reconfigure a Buck Converter for Multiple Outputs White Paper PDF 468 KB
Preventing Subsystem Brownouts in Mobile Devices 简体中文 White Paper PDF 572 KB
A Smarter Way to Power Wearable Devices 简体中文 White Paper PDF 576 KB
How to Configure the Tracking and Power Sequencing of FPGAs White Paper PDF 526 KB
How to Select a PWM Controller for Narrow On-Time Buck Conversion 简体中文 White Paper PDF 322 KB
Keeping Pace with Power Hungry Mobile Devices 日本語, 简体中文 White Paper PDF 285 KB
Power Modules Win, but Choose Wisely White Paper PDF 894 KB
The Benefits of Using Digital Power Modules 简体中文 White Paper PDF 594 KB
How to Protect Buck Regulators from Overcurrent Damage White Paper PDF 378 KB
Simplifying Power Supply Design with a Power Module White Paper PDF 211 KB
How to Charge Supercapacitor Banks for Energy Storage 简体中文 White Paper PDF 431 KB


printNews & Additional Resources