Based on the Wide VIN COT Sync Buck regulator LM5017, this FlyBuck circuit provides excellent regulation for two isolated outputs and one non-isolated output. Compared with a conventional Flyback circuit, this design features a smaller board size and minimized BOM without the need for an optocoupler. This design is well suited for applications which need bias power. Additional output voltage versions of this board are available: see PMP7798.2 and PMP7798.3
| Output voltage options | PMP7798.1 | PMP7798.2 | PMP7798.3 |
|---|---|---|---|
| Vin (Min) (V) | 36 | 36 | 36 |
| Vin (Max) (V) | 75 | 75 | 75 |
| Vout (Nom) (V) | 10 | 5 | 10 |
| Iout (Max) (A) | .04 | .08 | .12 |
| Output Power (W) | .4 | .4 | 1.2 |
| Isolated/Non-Isolated | Isolated | Isolated | Isolated |
| Input Type | DC | DC | DC |
| Topology | Buck- Synchronous | FlyBuck | FlyBuck |
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
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | PMP7798 Test Results | Feb. 06, 2012 | |
| White paper | Designing isolated rails on the fly with Fly-Buck™ converters | Sep. 29, 2015 |
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