Step-up (boost) regulators are not a specific brand but a category of DC-DC converters used in electronics to increase voltage from a lower to a higher level. These devices are produced by various global companies, such as Texas Instruments (USA), Analog Devices (USA), STMicroelectronics (Switzerland), and Infineon Technologies (Germany). They serve industries like automotive, aerospace, industrial automation, and consumer electronics, providing efficient power management solutions. Key products include ICs and modules for applications requiring stable, boosted voltage outputs.