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Power Management

Switching Regulators – Buck, Boost and Multi-Output Voltage Regulators

The advantages of higher power conversion efficiency and flexibility of design helps make switching regulators the optimal solution to address multiple end markets ranging from rugged automotive to space-constrained consumer applications.

Microchip has a diverse and growing portfolio of DC/DC regulators aimed to efficiently power designs, ranging from powering core supplies needing I2C communication and dynamic voltage scaling capabilities to powering battery-operated systems with a low quiescent current requirement. In addition to the conventional voltage-mode and current-mode control architectures, Microchip has patented Adaptive Constant On-Time (HyperLight Load® mode and Hyper Speed Control® architecture) and Constant Frequency Hysteretic Control architectures that provide ultra-fast transient response.

How Can a Switching Regulator Solve Your Design Challenges?

  • Provides highly efficient power conversion
  • Can handle large currents with low thermal dissipation
  • Support for wide input ranges (up to +75V), wide output current range (up to 12A)
  • Various control architectures and high frequency operation (up to 8 MHz)

How Does a Switching Regulator Work?

Switching regulators are the most prevalent form of DC/DC power conversion used today due to their capability for providing high efficiency, small solution sizes and flexibility to step-down, step-up or invert voltages. Switching regulators, as indicated by their name, control the turning on and off of a switch (transistor) to transfer energy from its input to its output. Inductors and capacitors for energy storage and diodes to control the direction of currents are some key additional components needed in a switch design. As the switch is cycled on and off, energy is stored and released by the magnetic field of the inductor. Controlling how much energy is stored or released by the inductor is the underlying premise of how switching regulators can efficiently transform power.


Featured and Focus Products




Automotive-Rated 30V/1A Synchronous Buck Regulator


I2C Programmable 5A Synchronous Buck Regulator


Low Quiescent Current Synchronous Boost Converter


36V/3.6A Isw PFM/PWM Boost Regulator


75V/5A Synchronous Buck Regulator with External Soft Start

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