Buck modules, also known as integrated inductor modules, are not a specific brand but a category of power electronics components. These modules are widely used in industries such as automotive, telecommunications, and industrial automation for efficient DC-DC voltage conversion. Leading manufacturers like Texas Instruments (USA), TDK (Japan), and Murata (Japan) produce these components, integrating inductors with buck converters to simplify circuit design and improve performance. Key products include compact, high-efficiency power modules for applications like battery-powered devices and renewable energy systems.