Power stage reference design for <100-VIN DC/DC converters


Design files


This reference design implements a high frequency power stage design based on the UCC27282 120-V half-bridge MOSFET driver and CSD19531 100-V power MOSFETs. With efficient switches and flexible VGS operating range, this design can reduce overall gate drive and conduction losses to achieve optimum efficiency. This power stage design can be widely applied to many space-constrained applications such as telecom brick power modules, solar inverters and DC motor drives.

  • Compact 100-V power stage design with switching up to 1MHz
  • Independent PWM inputs for high side and low side with cross conduction protection
  • Low propagation delay of 16ns, delay matching of 1ns typical
  • Driver VDD operating range 6 V to 16 V
  • Negative voltage capability tolerates high noise environments
  • Enable with low standby current
??image.gallery.download_en_US?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.


Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement


Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB

TIDRZO9.PDF (1019 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Half-bridge drivers

UCC272823-A, 120-V half-bridge gate driver with 5-V UVLO, interlock and enable

Data sheet: PDF | HTML
Half-bridge drivers

UCC272843-A, 120-V half bridge gate driver with 5-V UVLO and enable

Data sheet: PDF | HTML

CSD19531Q5A100-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 6.4 mOhm

Data sheet: PDF | HTML

Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Design guide Power Stage Reference Design for <100-VIN DC/DC Converters (Rev. A) Jun. 17, 2019

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​