電源管理

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.

分類

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

文檔

文檔標題 類型 日期
PDF279 KB
應用文檔
PDF3.51 MB日本語
手冊
PDF1.07 MB
白皮書
PDF351 KBEnglish, 日本語
白皮書
PDF468 KB
白皮書
PDF572 KBEnglish
白皮書
PDF576 KBEnglish
白皮書
PDF526 KB
白皮書
PDF322 KBEnglish
白皮書
PDF285 KBEnglish, 日本語
白皮書
PDF378 KB
白皮書
PDF431 KBEnglish
白皮書
?

視頻和培訓

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.