This reference design showcases a primary-side regulation (PSR) flyback converter based on the LM5185-Q1. The design offers three isolated output windings, and delivers up to 19W in total from a 6V to 27V input voltage range.
| Output voltage options | PMP31345.1 | PMP31345.2 | PMP31345.3 |
|---|---|---|---|
| Vin (Min) (V) | 6 | 6 | 6 |
| Vin (Max) (V) | 27 | 27 | 27 |
| Vout (Nom) (V) | 22 | 22 | 22 |
| Iout (Max) (A) | .55 | .16 | .16 |
| Output Power (W) | 12.1 | 3.52 | 3.52 |
| Isolated/Non-Isolated | Isolated | Isolated | Isolated |
| Input Type | DC | DC | DC |
| Topology | Flyback- Non Sync | Flyback- Non Sync | Flyback- Non Sync |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
Test results for the reference design, including efficiency graphs, test prerequisites and more
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
PCB layer plot file used for generating PCB design layout
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | Triple Output PSR Flyback Converter Reference Design | PDF | HTML | Mar. 06, 2025 |
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.