Switch Mode Power Supply: CoolMOS™

Infineon Technologies offers a wide range of products for SMPS (Switch Mode Power Supplies), ideal for power applications ranging from 50 W up to 400 W, embracing pricing sensitive markets as well as high-end SMPS applications.

These application areas include high-voltage MOSFETs, control ICs and Silicon Carbide diodes for PFC and PWM stages, along with low-voltage MOSFETs for synchronous rectification. With these products, Infineon keeps up with continuous increase of energy consumption and the imperative requirement for power savings.

Especially versatile is the CoolMOS™ 500V CE family. These devices combine efficiency with price competitiveness, while still making power solutions cooler, lighter and more compact. In combination with CoolMOS™ technologies, Infineon drivers and 5th generation Silicon Carbide diodes enable power designs to achieve benchmark efficiency at system level.

For high-end SMPS applications, the new CoolMOS™ C7 is recommended at high operation switching frequencies.

For synchronous rectification, the OptiMOS™ series offers extremely low on-state resistance and low capacitances. Infineon's new control ICs that support topologies such as PFC, quasi-resonant flyback and LLC.

Infineon OptiMOS

Features for your SMPS Applications

  • Offers a significant reduction of conduction and switching losses
  • Enables high power density and efficiency for superior power-conversion systems
  • Best-in-class price/performance ratio

A New Market Leading Generation of Superjunction MOSFETs

Combining the experience of the leading Superjunction MOSFET supplier with high class innovation, Infineon widens the CoolMOS™ portfolio offering the new 500 V CoolMOS™ CE series. As a new technology platform on market leading high-voltage power MOSFETs, the new devices provide all benefits of fast switching Superjunction MOSFETs while not sacrificing ease of use.

In price sensitive and targeted applications such as consumer, PC Silverboxes and lighting, 500 V CoolMOS™ CE offers the best price-performance ratio on the market while meeting higher efficiency standards.

Delivering all benefits of a modern Superjunction MOSFET such as low area specific on-state resistance and reduced energy stored in output capacitance, the 500 V CoolMOS™ CE series provides a high body diode ruggedness, achieves extremely-low conduction and switching losses and can make switching applications more efficient, more compact, lighter and cooler.

View All CoolMOS™ Products

Product Portfolio CoolMOS™ 500V CE

  TO-220 FullPAK
TO-220 FullPAK
950 mΩ IPA50R950CE IPD50R950CE     IPU50R950CE
800 mΩ IPA50R800CE IPD50R800CE      
650 mΩ IPA50R650CE IPD50R650CE      
500 mΩ IPA50R500CE IPD50R500CE IPP50R500CE    
380 mΩ IPA50R380CE IPD50R380CE IPP50R380CE    
280 mΩ IPA50R280CE IPD50R280CE IPP50R280CE IPW50R280CE  
190 mΩ IPA50R190CE   IPP50R190CE IPW50R190CE  

Target Applications

  • Reduced energy stored in output capacitance (Eoss)
  • High body diode ruggedness
  • Reduced reverse recovery charge (Qrr)
  • Reduced gate charge (Qg)

Product Features

  • Easy control of switching behavior
  • Better light load efficiency compared to previous CoolMOS™ generations
  • Cost attractive alternative compared to standard MOSFETs
  • Outstanding quality and reliability of CoolMOS™ technology


  • Consumer
  • Lighting
  • PC Silverbox

Market-Leading, Best-in-Class On-Resistance per Package

With the new 650 V CoolMOS™ C7 series, Infineon settles a new level of performance in hard-switching applications such as Power Factor Correction (PFC). It is the successor to the CP series and provides efficiency benefits across the whole load range through balancing a number of key parameters.

What does C7 offer?

30% less switching losses in comparison to its best in class predecessor CoolMOS™ CP for SMPS

100% higher robustness than our CoolMOS™ CP given the 100V/ns instead of 50V / ns

650 V was chosen to give extra safety margin for designers, making it especially suitable for SMPS. The new CoolMOS™ C7 series benefits from the 12 years manufacturing experience and continues to offer Infineon's outstanding quality.

View All CoolMOS™ Products

Product Portfolio CoolMOS™ C7

225/230 mΩ IPB65R225C7 IPP65R225C7    
45 mΩ IPB65R045C7 IPP65R045C7 IPW65R045C7 IPZ65R045C7


  • 650 V voltage
  • Revolutionary best-in-class RDS(on) package
  • Reduced energy stored in output capacitance (Eoss)
  • Lower gate charge Qg
  • Space saving through use of smaller packages or reduction of parts
  • 12 years manufacturing experience in Superjunction technology


  • Improved safety margin and suitable for both SMPS and solar inverter applications
  • Lowest conduction losses/package
  • Low switching losses
  • Better light load efficiency
  • Increasing power density
  • Outstanding CoolMOS™ quality


  • Telecom
  • Server
  • Solar
  • PC power


  • Power Factor Correction (PFC)
  • Solar Boost

Balancing High Performance with Ease of Use

With the CoolMOS™ P6 Infineon extends its market leading CoolMOS™ portfolio, setting new benchmarks in the price/performance Superjunction segment. The new and highly innovative product family is designed to enable higher system efficiency while being easy to design in.

CoolMOS™ P6 closes the gap between technologies which focus on delivering ultimate performance, such as the high performance CoolMOS™ CP, and those which concentrate more on ease of use, for example CoolMOS™ C6/E6.

The new devices provide high performance in hard and soft switching PFC and PWM topologies in applications such as server, telecom rectifier, PC Silverbox and gaming consoles. Moreover, with its granular portfolio, the CoolMOS™ P6 family offers the best price/performance ratio of any Superjunction technology available on the market today.

View All CoolMOS™ Products

Product Portfolio CoolMOS™ 600V P6

  TO-252 DPAK
TO-220 FullPAK
TO-220 FullPAK
600 mΩ IPD60R600P6  IPP60R600P6 IPA60R600P6   
190/210 mΩ   IPP60R190P6 IPA60R190P6  IPW60R190P6 

Target Applications

  • Reduced gate charge (Qg)
  • Higher Vth
  • Good body diode ruggedness
  • Optimized integrated Rg
  • Improved dv/dt from 50V/ns 
  • CoolMOS™ quality with over 12 years manufacturing experience in Superjunction technology

Product Features

  • Improved efficiency, especially in light load condition
  • Better efficiency in soft-switching applications due to earlier turn-off
  • Suitable for hard- and soft-switching topologies
  • Optimized balance of efficiency and ease of use and good controllability of switching behavior
  • High robustness and better efficiency
  • Outstanding quality and reliability


  • PFC stages for server, telecom rectifier, PC Silverbox, gaming consoles
  • PWM stages (TTF, LLC) for server, telecom rectifier, PC Silverbox, gaming consoles

General Product Table for SMPS 50W-400W

Stage Voltage Technology Range Recommendation
PFC 600V CoolMOS™ P6 190mOhm - 660mOhm Efficiency
PFC 500V CoolMOS™ CE 190mOhm - 950mOhm Price Performance
PFC 650V thinQ!™ SiC Diode Gen 5 2A - 4A Efficiency
PFC Controller   ICE3 xxx Controller   Efficiency
Main Stage 600V CoolMOS™ P6 190mOhm - 660mOhm Efficiency
Main Stage 500V CoolMOS™ CE 190mOhm - 950mOhm Price Performance
Main Stage Controller   ICE28SO1G (for LLC)   Efficiency
Rectification 30V - 100V OptiMOS™ 1mOhm - 10mOhm Efficiency
Infineon Technologies


Introducing the new CoolMOS™ C7 Series CoolMOS™ C7 - Efficiency Requirements CoolMOS™ C7 - Device Features CoolMOS™ C7 - Performance and Design Guidelines A new Market Leading Superjunction Generation Superjunction & Switching Speed Gate Charge & Efficiency Hard Commutation & Design Guidelines 600V CoolMOS™ P6 - Key Information 600V CoolMOS™ P6 - Electrical Parameter 600V CoolMOS™ P6 - Performance Comparison and Conclusion


CoolMOS C7 Product Brief C7 Application Note C7 4-pin Application Note C7 Selection Guide PFC Selection Guide CoolMOS P6 Product Brief CoolMOS CE Product Brief SiC Diode Product Brief CE Application Note P6 Application Note

Design Notes:

CCM PFC Boost Converter Design CrCM PFC Boost Converter Design Design Guide for QR Flyback Converter Design Guide for Off-line Fixed Frequency DCM Flyback Converter LLC Converter Design Note Forward Converter Design Note Design of Phase Shifted Full-Bridge Converter with Current Doubler Rectifier

Featured Products:

We create Power Management - We live Energy Efficiency - Infineon's products stand out for their reliability, excellent quality, and their innovative and leading edge technology. Learn more.

CoolMOS™ C6 Devices - Infineon believes that ease of use, along with energy efficiency on the level of its predecessor CoolMOS™ C3 and the additional improvement in light load efficiency, will make the CoolMOS™ C6 series the benchmark for hard-switching applications. Learn more.