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DC/DC Converters
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Renesas' portfolio of DC/DC converters includes 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 |
|---|---|---|---|
| $ | Linear regulators (LDO) | Single and multi-output linear regulators/LDOs | |
| $$ | Buck Regulators (Integrated FETs) | Single and multi-output buck regulators with controller, driver and power FETs in one package | |
| $$ | Buck-boost Regulators (Integrated FETs) | Single and multi-output buck-boost regulators with controller, driver and power FETs in one package | |
| $$ | Boost Regulators (Integrated FETs) | Single and multi-output boost regulators with controller, driver and power FETs in one package | |
| $$$$$ | Power Modules (Integrated Inductor & FETs) | Fully integrated buck module with controller, driver, power FETs and inductor in one package | |
| $$ | Buck Controllers (External FETs) | Single and multiple-output buck controllers with and without drivers on board | |
| $$$ | Analog Multiphase DC/DC Switching Controllers | Multiple phase buck controllers with and without drivers on board | |
| $$$$ | 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.
Categories
Charge Pumps (Inductorless)
Monolithic CMOS voltage conversion ICs that perform supply voltage conversions
Step-down (Buck)
DC/DC power converters for voltage step down and current step up
Step-up (boost)
DC/DC power converters with an output voltage greater than the input voltage
Step-up/Step-down (Buck-Boost)
Regulate the output voltage over the full power source voltage range
Documentation
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Date | |
|---|---|---|
| PDF 5.51 MB 日本語 | Brochure | |
| PDF 1.07 MB | White Paper | |
| PDF 351 KB 日本語 , 简体中文 | White Paper | |
| PDF 468 KB | White Paper | |
| PDF 572 KB 简体中文 | White Paper | |
| PDF 576 KB 简体中文 | White Paper | |
| PDF 526 KB | White Paper | |
| PDF 322 KB 简体中文 | White Paper | |
| PDF 285 KB 日本語 , 简体中文 | White Paper | |
| PDF 378 KB | White Paper | |
| PDF 431 KB 简体中文 | White Paper | |
| PDF 279 KB | Application Note | |
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play_circle_filledVideos & Training
High-Performance 80V Buck-Boost and Dual-Phase Controllers
A brief overview of the highest-performance 80V DC/DC controllers and why they are the best solutions for data center servers, 48V telecom and rugged industrial equipment designs that require extra voltage margin.
Video List