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DC-DC Switching Converters and Voltage Regulators

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DC-DC Switching Converters and Voltage Regulators for Buck, Boost, Buck-Boost

The advantages of higher power conversion efficiency and design flexibility help make switching converters the optimal solution for multiple end markets ranging from rugged automotive to space-constrained consumer applications. We have a diverse and growing portfolio of DC-DC converters that efficiently powers designs ranging from core supplies needing I2C communication and dynamic voltage scaling capabilities to battery-operated systems with a low-quiescent current requirement. In addition to the conventional voltage-mode and current-mode control architectures, we have HyperLight Load® mode and Hyper Speed Control® architecture, which are patented adaptive Constant On-Time (COT) modes, and constant frequency hysteretic control architectures that provide ultra-fast transient response.

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DC-DC Buck Converter ICs (Step-Down Voltage Regulators)

  • Buck input voltages from 6V to 75V
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DC-DC Boost Converter ICs (Step-Up Voltage Regulators)

  • Boost converters (synchronous and non-synchronous)
  • Charge pumps
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DC-DC Buck-Boost Converter ICs (Step-Up/Step-Down Voltage Regulators)

  • Synchronous four-switch buck-boost architecture
  • Highly integrated mixed-signal controllers 
  • Digital PWM controller with a serial communication bus for external programmability and reporting
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Analog Front-End (AFE) With Digital Monitoring and Configuration

  • Analog control loops with digital oversight
  • Analog references, amplifiers
  • Pulse-Width Modulation (PWM) generators to regulate an output
  • Digitally configured monitoring, measuring and dynamically adjusting performance
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Power Management ICs (PMICs) (Multi-Output Regulators)

  • Multiple-output linear regulators
  • Multiple-output buck regulators
  • Multi-mode operation
  • Protection circuits and features
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Do You Need Help Choosing Your Power?

Power conversion doesn't have to be complicated. With just a few clicks, our simple and easy-to-use interactive tool will guide you to the right product for your application.

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Featured Products

MCP19061 AFE

MCP19061 Buck-Boost Converter

  • Synchronous four-switch buck-boost architecture
  • USB Power Delivery (PD) support
    • High output impedance when stopped
    • Output discharge function
    • Output overcurrent, overload and short-circuit in accordance with USB power delivery
    • Regulation mode (voltage/current) detection
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MCP16361 Device Image

MCP16361 Buck Regulator

  • 48V input, 2.2 MHz, PFM/PWM buck regulator
  • Applications
    • Automotive DC/DC and 48V systems
    • Microcontroller bias supply
    • 24V industrial input DC-DC conversion
    • SLA battery-powered devices
    • AC-DC digital control power sources
    • Power meters
    • Medical and healthcare
    • Distributed power supplies
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MIC24066 Device Image

MIC24066/7 Buck Converters

  • 36V, 6A high-performance DC-DC switching buck Converters
  • Typical Applications:
    • Servers and workstations
    • Routers, switches and telecom equipment
    • High-power-density point-of-load conversion
    • USB Type-C® charge only
    • Test and measurement instrumentation
    • 24V industrial input DC-DC conversion
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Basics of Switching Conversion

How Does a DC-DC Switching Converter Work?

Switching converters, also known as switching voltage regulators, are the most prevalent form of DC/DC power conversion used today due to their ability to provide 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 a switch (transistor) to transfer energy from its input to its output. Key components needed in a switch design include inductors and capacitors for energy storage and diodes to control the direction of currents. As the switch is cycled on and off, energy is stored and released by the magnetic field of the inductor. Switching regulators can efficiently transform power by controlling how much energy is stored or released by the inductor.

How Can a Switching Converter Solve Your Design Challenges?

  • Topologies: buck, boost, buck-boost
  • Provide highly efficient power conversion
  • Handle large currents with low thermal dissipation
  • Support wide input ranges (up to +75V) and wide output current ranges (up to 12A)
  • Contain various control architectures and high frequency operation (up to 8 MHz)

Design Resources

MPLAB Analog Designer

MPLAB® Analog Designer

This tool provides design suggestions for common circuit needs, estimates performance for common modifications, and can export to MPLAB® Mindi™ Analog Simulator for verification.

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MPLAB Mindi Analog Simulator

MPLAB® Mindi™ Analog Simulator

This simulation tool uses a SIMetrix/SIMPLIS environment to model circuit behavior, reducing design time with software debugging for initial design verification.

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MicroCHECK Design Service

MicroCHECK Design Service

Our complimentary MicroCHECK design review service, which offers insight from the initial concept to the final PCB layout, is available to customers who are using our products in their projects.

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