AC/DC & isolated DC/DC switching regulators

Optimize power conversion with our portfolio of controllers, converters and modules for a wide range of power topologies

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We offer one of the world's largest comprehensive portfolios of high-performance AC/DC and isolated DC/DC controllers, converters and modules with the widest range of power topology options. Our easy-to-use devices help you innovate and differentiate your power supply design to deliver high-efficiency, high-power density and high-performance isolated power conversion.

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Selecting the right topology to fit your power and efficiency needs


Industrial, 30-V, low-power current-mode PWM controller, 18.8-V/15.5-V UVLO for SiC, 50% duty cycle

Approx. price (USD) 1ku | 0.616
UCC28781 NEW

High-density, zero-voltage switching (ZVS) flyback controller with integrated SR control

Approx. price (USD) 1ku | 0.65
UCC25800-Q1 NEW

Ultra-low EMI transformer driver for isolated bias supplies

Approx. price (USD) 1ku | 1.65

Automotive, 30-V, low-power current-mode PWM controller, 14.5-V/9-V UVLO, 50% duty cycle

Approx. price (USD) 1ku | 0.668
UCC28781-Q1 NEW

Automotive, high-density, zero-voltage switching (ZVS) flyback controller with integrated SR control

Approx. price (USD) 1ku | 0.9
UCC14240-Q1 NEW

Automotive, 1.5-W, 24-Vin, regulated, 3-kVRMS isolated DC-DC module with integrated transformer

Approx. price (USD) 1ku | 4.2

Power trends

AC/DC & isolated DC/DC switching regulators for power density

The growing need to design efficient power supplies is met with our portfolio of innovative controllers and converters, which are designed to deliver more and waste less energy. These devices can improve light load performance while eliminating the need to switch off the PFC, which meets the industry’s growing pressure on performance, while also minimizing the number of external components.

Technical resources

Video series
Video series
How to meet regulatory standards for output voltage
Learn about the practical implementation of a variable output voltage to meet regulatory standards such as the European standard, Ecodesign 2019/1782.
Technical article
Technical article
EMI requirements for an isolated DC/DC converter
Understand the fundamentals of electromagnetic interference (EMI) emissions, and learn more about the requirements and industry standards as they relate to implementation in an isolated DC/DC converter.
Video series
Video series
Key benefits of regulated flyback controls
Understand the benefits of regulated flyback control and overcoming the design challenges with leveraging flyback controls.

Design & development resources

Reference design
Isolated IGBT and SiC driver bias supply reference design for traction-inverter applications
This isolated open-loop LLC transformer driver converter provides dual +20-V and -4-V outputs up to 6 W for traction inverter applications. The LLC topology allows the transformer to have significant leakage inductance, but a much smaller primary-secondary capacitance, which significantly reduces (...)
Evaluation board
UCC14240-Q1 evaluation module for 1.5-W dual-output isolated DC-DC converter gate driver bias

The UCC14240-Q1 evaluation module (EVM) is a DC/DC converter module, providing 1.5-W of 3 kVRMS, isolated power in a low-profile, 3.5-mm, wide body SOIC integrated package. The UCC12040EVM-052 EVM can operate from 21 V < VIN < 27 V and is configured for dual outputs of VDD = +15 V and VEE = (...)

Evaluation board
UCC28730 Primary Side Flyback Controller with UCC24650 Secondary Side Wake Up

The UCC28730EVM-552 evaluation module is a 10-W off-line discontinuous mode (DCM) flyback converter that provides constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler.  The primary side controller detects a wake-up signal from the secondary (...)

Reference designs related to AC/DC & isolated DC/DC switching regulators

Use our reference design selection tool to find designs that best match your application and parameters.