A switching regulator is a type of power supply that efficiently converts electrical energy from one voltage level to another. Unlike linear regulators, which dissipate excess voltage as heat, switching regulators use a high-frequency switch to control the flow of energy, allowing for higher efficiency and less heat generation. This makes them ideal for battery-powered devices and applications where energy conservation is important. These regulators can step up (boost), step down (buck), or invert voltage levels, making them versatile for various electronic applications. Commonly found in devices like smartphones, laptops, and LED lighting, switching regulators help maintain stable power supply while maximizing battery life and performance.