Isolated DC/DC converters & modules

Simplify your isolated DC/DC design

parametric-filterView all products
Our portfolio of isolated bias supplies, modules and power converters combines high-density integrated-FET converters and integrated-transformer modules to reduce your BOM count and simplify your isolated DC/DC design. Transformer drivers with external transformers can provide a simple isolated power solution while the primary side regulated (PSR) flyback and Fly-Buck™ converter portfolios can be optimized for performance with an external transformer. 

Browse by category

Select by device type
Modules    

Our isolated power modules increase performance and reduce solution size. Featured products include integrated transformer technology with certified isolation.

Converters

Easily generate one or more isolated positive and negative supplies using a small number of external components. An optocoupler is not required, and devices can be used for isolated applications.

Transformer drivers    

Our compact push-pull and LLC transformer drivers provide a simple, low-EMI, isolated power supply and are ideal for cost-constrained applications when compared to integrated isolated power solutions.

Related categories
Isolated gate drivers 

Pair your isolated bias supply with an isolated gate driver.

Find your isolated DC/DC converter and module

UCC33420
Isolated DC/DC converters & modules

5V/5V 1.5W 3kVrms isolated DC-DC module with integrated transformer

Approx. price (USD) 1ku | 1.3

UCC33420-Q1
Isolated DC/DC converters & modules

Automotive, 5V/5V 1.5W 3kVrms isolated DC-DC module with integrated transformer

Approx. price (USD) 1ku | 1.534

UCC14131-Q1
Isolated DC/DC converters & modules

Automotive, 1.5-W, 12-V to 15-V VIN, 12-V to 15-V VOUT high-density >5-kVRMS isolated DC/DC mo

Approx. price (USD) 1ku | 4.62

UCC14130-Q1
Isolated DC/DC converters & modules

Automotive, 1.5-W, 12-Vin to 15-Vin, 12-Vout to 15-Vout high-density > 3-kVRMS isolated DC/DC module

Approx. price (USD) 1ku | 4.2

UCC15241-Q1
Isolated DC/DC converters & modules

Automotive, 2.5-W, 24-Vin, 25-Vout high-density > 5-kVRMS isolated DC-DC module

Approx. price (USD) 1ku | 5.31

UCC15240-Q1
Isolated DC/DC converters & modules

Automotive, 2.5-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module

Approx. price (USD) 1ku | 4.83

Power trends

Shrink your power solution, maximize efficiency

These unique solutions can shrink your power solution by as much as 80% and maximize efficiency in high-voltage industrial applications with high density. The 16-pin SOIC package measures 10.3 mm x 10.3 mm x 2.65 mm and offers 60% efficiency—twice that of competing devices of similar size—and twice the power density of comparative isolated power modules. Delivering 0.5 W in the new architecture improves reliability, enables a small BOM and simplifies board layout.

Video
Solving space challenges with isolated bias supplies
Our newest isolation technology miniaturizes and integrates the power transfer with ultra-low-EMI for high-density DC/DC power conversion. Learn how these new solutions are right for your space-constrained isolated power systems. 
White paper
Understanding the trade-offs and technologies to increase power density (Rev. C)
This white paper examines the limitations to increasing power density and provides technology examples that can help designers overcome these barriers.
PDF | HTML
Featured products for power density
NEW UCC14141-Q1 ACTIVE Automotive, 1.5-W, 12-V VIN, 25-V VOUT high-density >5-kVRMS isolated DC/DC module
NEW UCC14341-Q1 ACTIVE Automotive, 1.5-W, 15-Vin, 25-Vout high-density > 5-kVRMS isolated DC/DC module
UCC12051-Q1 ACTIVE Automotive, 500-mW, 5-kVrms isolated DC/DC module with integrated transformer

Time-saving and cost-effective EMI reduction

These devices offer ultra-low EMI and eliminate external filter components such as low-dropout regulators and ferrite beads normally required to meet EMI certification, which significantly reduces component selection and design time. 

White paper
Fundamentals of EMI Requirements for an Isolated DC/DC Converter
This white paper examines the fundamentals of electromagnetic interference (EMI) emissions, highlighting requirements and industry standards as they relate to implementation in an isolated DC/DC converter
PDF
More literature
A simple, robust, and low-EMI solution for inverter gate-driver bias supplies
This presentation offers a deep dive into gate driver architectures, including different ways to create isolated bias supply and LLC-based open-loop isolated bias supply.
PDF
Featured products for low EMI
UCC25800-Q1 ACTIVE Ultra-low EMI transformer driver for isolated bias supplies
UCC12050 ACTIVE 500-mW, high-efficiency, 5-kVRMS isolated DC/DC converter
UCC12040 ACTIVE 500 mW, high efficiency 3 kVrms isolated DC-DC converter

Isolation for robust and reliable system operation

The devices are available with reinforced or wide isolation and a wide temperature range (extended –40°C to +125°C) to deliver more power in extreme conditions.

White paper
Addressing High-Volt Design Challenges w/ Reliable and Affordable Isolation Tech (Rev. C)
This paper examines isolation requirements for electrical systems and how high-voltage semiconductors can help designers meet their isolation needs
PDF | HTML
Technical article
Isolation 101: How to find the right isolation solution for your application
This technical article defines four major types of isolation and explains how engineers can benefit from our new fully integrated transformer technology.
PDF | HTML
Featured products for isolation
UCC14240-Q1 ACTIVE Automotive, 2.0-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
NEW UCC14141-Q1 ACTIVE Automotive, 1.5-W, 12-V VIN, 25-V VOUT high-density >5-kVRMS isolated DC/DC module
UCC12051-Q1 ACTIVE Automotive, 500-mW, 5-kVrms isolated DC/DC module with integrated transformer

Technical resources

White paper
White paper
Power Through the Isolation Barrier: The Landscape of Isolated DC/DC Bias Power (Rev. A)
This paper examines various isolated DC/DC bias power supplies to move signals and power across the isolation barrier and transfer signals and power across the isolation barrier safely.
document-pdfAcrobat PDF
White paper
White paper
Time-Saving and Cost-Effective Innovations for EMI Reduction (Rev. A)
This paper examines EMI in switch-mode power supplies and provides technology examples to help designers quickly and easily pass industry-standard EMI tests.
document-pdfAcrobat PDF
Technical article
Technical article
Isolation 101: How to find the right isolation solution for your application
This article highlights how to reduce the number components in the PCB area while increasing power density by at least 50% with our UCC1205x family of devices.
document-pdfAcrobat PDF

Discover featured applications

Traction inverter & motor control
Extend driving ranges and reduce weight in EV traction inverter systems with our isolated bias supply converters and modules, which enable efficient and reliable powertrain solutions
OBC & DC/DC converter
Enable high-power-density powertrain subsystems with integrated isolated bias supply converters and modules
DC fast charging stations
Develop efficient, high-density modular power converters with our isolated bias supply converters and modules
Solar & energy storage systems
Develop efficient and reliable high-voltage inverters with our isolated bias supply modules and converters
Automotive heating & cooling
Design high-performance, power-dense heating and cooling systems for electric vehicles (EVs) with our isolated bias supply modules and converters

Extend driving ranges and reduce weight in EV traction inverter systems with our isolated bias supply converters and modules, which enable efficient and reliable powertrain solutions

To support the need for higher efficiency and reliability while reducing the overall weight of the powertrain (which helps increase EV driving ranges), traction inverter designs now include SiC FETs, 800-V batteries and an increased emphasis on integration (which helps optimize costs). 

Our isolated bias supplies:

  • Achieve 40% smaller bill of materials than typical flyback bias solutions with integrated bias modules.
  • Enable high efficiency SiC operation with ±1.3% regulation.
  • Support fast-switching SiC FETs, with >150 V/ns common-mode transient immunity.

Featured resources

REFERENCE DESIGNS
  • PMP22817 – Automotive SPI-programmable gate driver and bias supply with integrated transformer reference design
  • PMP23223 – Smart isolated gate driver with bias supply reference design
  • PMP23061 – Pre-regulated isolated driver bias supply reference design for traction-inverter applications
PRODUCTS
  • UCC14240-Q1 – Automotive, 2.0-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
  • UCC25800-Q1 – Ultra-low EMI transformer driver for isolated bias supplies
  • UCC12051-Q1 – Automotive, 500-mW, 5-kVrms isolated DC/DC module with integrated transformer

Enable high-power-density powertrain subsystems with integrated isolated bias supply converters and modules

EV powertrain designers are adopting wide-bandgap technologies to support higher voltages, horsepower and driving ranges. Our isolated bias supplies provide the features to support optimal FET operation for lower weight and size in high density OBCs and DC/DC converters. 

Our isolated bias supplies:

  • Achieve higher power density with >150 V/ns common-mode transient immunity to support fast-switching SiC and gallium nitride (GaN) FETs.
  • Enable 40% smaller bill of materials than typical flyback solutions with integrated bias supplies.
  • Offer ±1.3% accuracy to promote efficient SiC operation.

Featured resources

REFERENCE DESIGNS
  • PMP22817 – Automotive SPI-programmable gate driver and bias supply with integrated transformer reference design
  • PMP40980 – Multiple-output isolated SiC driver bias-supply reference design for onboard charger applications
  • PMP23223 – Smart isolated gate driver with bias supply reference design
PRODUCTS
  • UCC14240-Q1 – Automotive, 2.0-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
  • UCC25800-Q1 – Ultra-low EMI transformer driver for isolated bias supplies
  • UCC12051-Q1 – Automotive, 500-mW, 5-kVrms isolated DC/DC module with integrated transformer

Develop efficient, high-density modular power converters with our isolated bias supply converters and modules

Higher driving ranges and car battery voltages in electric vehicles demand fast, reliable and efficient charging stations to support quick charging requirements. 

Our isolated bias supplies:

  • Offer faster charging with >150 V/ns common-mode transient immunity to support SiC and gallium nitride (GaN) FETs.
  • Reduce system cost and simplify power converter designs with integrated bias supply modules.
  • Decrease charging station standby power requirements with enable/disable features.

Featured resources

REFERENCE DESIGNS
  • TIDA-01606 – 10-kW, bidirectional three-phase three-level (T-type) inverter and PFC reference design
  • PMP23223 – Smart isolated gate driver with bias supply reference design
  • PMP22845 – Isolated 5-V bias supply for automotive CISPR 25, class 5 emissions, reference design
PRODUCTS
  • UCC14240-Q1 – Automotive, 2.0-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
  • UCC25800-Q1 – Ultra-low EMI transformer driver for isolated bias supplies
  • UCC12050 – 500-mW, high-efficiency, 5-kVRMS isolated DC/DC converter

Develop efficient and reliable high-voltage inverters with our isolated bias supply modules and converters

Wider voltage and power ranges in solar systems are leading to the implementation of high-voltage bidirectional power-conversion stages and wide-bandgap semiconductors. 

Our isolated bias supplies:

  • Can withstand high junction temperatures for maximum drive capabilities in the harshest environments.
  • Create sleek storage systems with >150 V/ns of common-mode transient immunity to support SiC and gallium nitride (GaN).
  • Offer basic and reinforced isolation for high reliability and protection.

Featured resources

REFERENCE DESIGNS
  • PMP23124 – 12-VIN dual-output-bias supplies reference design
  • TIDA-01606 – 10-kW, bidirectional three-phase three-level (T-type) inverter and PFC reference design
  • PMP23223 – Smart isolated gate driver with bias supply reference design
PRODUCTS
  • UCC14240-Q1 – Automotive, 2.0-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
  • UCC25800-Q1 – Ultra-low EMI transformer driver for isolated bias supplies
  • UCC12050 – 500-mW, high-efficiency, 5-kVRMS isolated DC/DC converter

Design high-performance, power-dense heating and cooling systems for electric vehicles (EVs) with our isolated bias supply modules and converters

The automotive industry's transition away from combustion engines requires reworking heating, ventilation and air-conditioning systems to support high-voltage power.  

Our isolated bias supplies:

  • Offer basic and reinforced isolation solutions to support high working voltages.
  • Feature >150 V/ns of common-mode transient immunity to support fast-switching SiC FETs.
  • Provide the smallest solution size to meet stringent height and space requirements.

Featured resources

REFERENCE DESIGNS
  • PMP23061 – Pre-regulated isolated driver bias supply reference design for traction-inverter applications
  • PMP23223 – Smart isolated gate driver with bias supply reference design
  • PMP22845 – Isolated 5-V bias supply for automotive CISPR 25, class 5 emissions, reference design
PRODUCTS
  • UCC14240-Q1 – Automotive, 2.0-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
  • UCC25800-Q1 – Ultra-low EMI transformer driver for isolated bias supplies
  • UCC12051-Q1 – Automotive, 500-mW, 5-kVrms isolated DC/DC module with integrated transformer

Design & development resources

Reference design
Automotive SPI-programmable gate driver and bias supply with integrated transformer reference design

This reference design provides isolated-bias supply and isolated-gate driver for power switches in traction inverters and onboard chargers. Both the bias power and driver provide the high isolation (3-kV RMS for one minute) needed for 800-VDC bus application. The isolated bias provides 24 VDC both (...)

Reference design
Smart isolated gate driver with bias supply reference design

This reference design demonstrates the combination of UCC21732 gate driver with a UCC14xxx series bias supply. This design can be used to drive a variety of power switches, including connecting directly to a Wolfspeed Silicon Carbide (SiC) field-effect transistor (FET) module. This reference design (...)

Reference design
Multiple-output isolated driver bias-supply reference design
This isolated open-loop LLC transformer-driver converter reference design provides four rail outputs. Each output has dual +18-V and –5-V outputs up to 0.5 W for traction inverter applications. The LLC topology allows the transformer to have significant leakage inductance, but a much smaller (...)

Reference designs related to Isolated DC/DC converters & modules

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