The PMP9649 reference design is a simple, low-cost high side Buck converter to convert universal AC input voltage (85Vac to 265Vac) to a non-isolated 20V/150mA DC output with UCC28720 controller. BJT is applied as the buck switch for cost optimization, and simplicity is achieved with bulit-in sample and hold regulation function in UCC28720.
| Output voltage options | PMP9649.1 |
|---|---|
| Vin (Min) (V) | 85 |
| Vin (Max) (V) | 265 |
| Vout (Nom) (V) | 20 |
| Iout (Max) (A) | .15 |
| Output Power (W) | 3 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | AC |
| Topology | Buck- 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
Design file that contains information on physical board layer of design PCB
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | PMP9649 Test Results | Dec. 10, 2014 |
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