24Vin+/-10%, 5Vout @ 0.3A Flybuck Converter


Design files


An isolated flybuck converter with self-driven synchronous rectification on the secondary side accepts an input voltage of 21.6Vin to 26.4Vin and provides an isolated output of 5Vout capable of supplying a maximum of 0.3A of current to the load.

  • Excellent regulation 4.9Vout ± 1.0% over entire line and load range without opto or discrete Vref
  • No need for pre-load on isolated output, without output voltage rise at light load
  • Improved load regulation, smaller voltage droop at heavy load
  • LM5017 wide Vin range 7.5V to 100V
  • Easy-to-design, cost effective Fly-Buck solution
  • Constant On-Time control, no loop compensation required
?? 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.

SNVU418.PDF (1200 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

SNVR432.PDF (168 K)

Detailed schematic diagram for design layout and components

SNVR433.PDF (103 K)

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


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

TIDCA13.ZIP (207 K)

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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

LM50177.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator

Data sheet: PDF | HTML

CSD18537NQ5A60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 13 mOhm

Data sheet: PDF | HTML

Technical documentation

No results found. Please clear your search and try again.
View all 1
Type Title Date
Test report PMP9362 Test Results Mar. 30, 2015

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. ​​​​​​​​