DrMOS - Integrated Power Stages

  • Products
  • Highlights
  • Documents
  • Boards
  • Simulation
  • Videos
  • Forums
  • Support
  • Software & Tools
  • Sales Insight

DrMOS 5x5 and new DrMOS 4x4



New DrMOS 4x4 

Infineon's new DrMOS, packaged in a very small 4.0x4.0x1.0mm³ PQFN envelope, is offering best-in-class efficiency and very low power loss. Infineon can deliver these benefits by combining its latest generation 25V OptiMOS™ 5 MOSFET technologies with its proven MOSFET driver silicon. A significant reduction of switching losses enables superior efficiency at higher switching frequencies. Higher switching frequency operation, combined with an extremely small package, enables system designers to save board space and still deliver superior performance.


Product* Maximum average current [A]** Sample availability Mass production
TDA21240 40-45 Available Q3 2016
TDA21241 35 May 2016 Q3 2016
TDA21242 25 May 2016 Q3 2016

*For more information, please contact your local sales counterpart

**Values not finalized and might change slightly

DrMOS 5x5

DrMOS 5x5 is an integrated power stage for high performance DC-DC Voltage Regulation solutions, comprising Infineon’s Driver and OptiMOS™ 5 25V MOSFET technologies in a 5.0x5.0x0.8mm 3 package. It utilizes low-side source-down technique, enabling a big PGND pad for improved thermal coupling to the PCB.

Product Type Part no./Product Name Max. Phases/Rail Package
Power stage
(driver + MOSFETs)
TDA21231 DrMOS 5x5 - 5.0x5.0mm² PG-IQFN-31
Digital VR Controller PX7247/PX7241
6.0x6.0mm² VQFN 48pin
5.0x5.0mm² VQFN 40pin



The Intel compliant DrMOS TDA21220 from Infineon incloses a Power MOSFET and a driver in one package. DrMOS is optimized for synchronous buck-step down voltage applications.

Power Management Selection Guide 2016


Product OPN Product Status Order Online Packages Green Budgetary Price €€/1k
Matching Results: 2                  
descending ascending           descending ascending








active and preferred





New DrMOS 4x4

Features Benefits Applications
  • Small 4.0x4.0x1.0mm³ PQFN package
  • Fast switching technology for improved performance at high switching frequency (>500kHz)
  • Recommended input voltage 4.5V to 16V
  • Undervoltage lockout
  • Shoot through protection
  • 5V driver voltage optimized
  • Compatible with standard 3.3V PWM
  • Peak efficiency >94%
  • Integrated bootstrap diode (no need of external diode)
  • Thermal warning
  • Remote driver disable function
  • Notebook, desktop and server VR buck converter
  • Single-phase and multi-phase POL
  • CPU/GPU regulation in notebook, desktop graphics cards


DrMOS 5x5

Features Benefits Applications
  • Recommended input voltage +4.5V to +16V
  • Low-side source-down for lowest parasitics and max. performance
  • Fast switching technology for 500kHz to 1MHz high-switching frequencies
  • >95% peak efficiency
  • Thermal warning
  • Remote Driver disable function
  • Integrated bootstrap diode (no need of ext. diode) with refresh circuit
  • Desktop and Server VR Buck Converter
  • Single-phase and multiphase POL
  • CPU/GPU Regulation in
  • Notebook, Desktop Graphics Cards, DDR Memory, Graphic Memory
  • High Power Density VRM



Input voltage range 5V...16V
SMOD function supported
Thermal warning/shutdown -
Max average load current 50A
MOSFET breakdown voltage 25V
PWM levels compatible +3.3V / +5V (tolerant)
Shoot through protection included

Product Selection Guide

Title Size Date Version
21 MB 22 Feb 2016 00_00

Product Brief

Title Size Date Version
174 KB 21 Mar 2016 01_00
102 KB 11 Mar 2015 01_00
285 KB 11 Mar 2015 01_00

Application Brochure

Title Size Date Version
340 KB 23 Oct 2015 01_00


Title Size Date Version
579 KB 01 Jul 2015 01_00

Additional Product Information

Title Size Date Version
157 KB 12 Mar 2015 01_00
161 KB 12 Mar 2015 01_00
530 KB 08 May 2013
Integrated Power Stages for High Performance DC/DC VR Solutions Featuring DrMOS 5x5

Integrated Power Stages for High Performance DC/DC VR Solutions Featuring DrMOS 5x5

This Video offers an overview on Infineon’s system solution portfolio for DCDC applications such as integrated power stages, Primarion digital controllers etc. You will learn more about the new DrMOS 5x5 features and understand the customer benefits provided by DrMOS 5x5.

Length 4:06


Introduction OptiMOS™ 5 25 V and 30 V

Introduction OptiMOS™ 5 25 V and 30 V

This video gives an introduction to the OptiMOS™ 5 25 V and 30 V product family. The OptiMOS™ 5 25V and 30V product family is based on a new silicon technology, targeted at DC/DC Voltage Regulation applications in the Computing industry, such as Server, Datacom and Client, as well as Or-ing and E-fuse, and wherever high frequent, high power density voltage regulators are needed. 

Length 4:52


Self Service

Infineon welcomes your comments and questions.

If you have any questions concerning our products, please fill out the following form. Your inquiry will be sent to the appropriate specialist who will be in touch with you as soon as possible.

You will receive a confirmation E-mail to validate your address in our system. Any attached file to the reply which will help to support your inquiry is highly appreciated.

I agree that my personal data mentioned above (including my e-mail address and phone number) can be gathered, processed and used for sales promotion and market research by Infineon Technologies AG and its licensed distribution partners.

For more information about our privacy policy please click on Privacy Policy

Where to buy

Please use our location finder to get in contact with your nearest Infineon distributor or sales office

Find a location

Ask Infineon