Step-Down (Buck) Switching Regulators

Step-down switching regulators, also called buck converters, output a regulated voltage level that is less than the input voltage. Modern step-down switching regulators and controllers are available with internal architectures that are optimized for applications that have specific goals, such as power savings, high efficiency, or low cost.

The most modern step-down regulators and controllers offer high switching frequencies, very efficient internal switching elements, and built-in circuit protections.

Visit our switching regulators application page for selection information by application.

Learn about modern switching regulator technology to understand how to differentiate a modern switching regulator IC from those using older technology.

Himalaya Step-Down Switching Regulators NEW!

By Key Parameter
Recommended Step-Down Regulators, 5V Input 
Recommended Step-Down Regulators, 12V Input
All Multi-Phase Step-Down Regulators
All Step-Down Power Modules with Integrated Inductor
All Step-Down Regulators 


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Resources

Title Edition Updated
Mobile Power Selector Guide
(PDF, 3.02 MB)
02017-11-16


In The Lab: Himalaya Buck Converters
5:43 min
October 2014



Himalaya: Raising the Bar for Power Modules
7:06 min
October 2015



Understanding Power Losses in Buck Converters
8:49 min
June 2018



Introduction to the MAXM17532 4V to 42V, 100mA High Efficiency, DC-DC Step-Down Power Module with Integrated Inductor
5:44 min
July 2017