This reference design is a wide input voltage range SEPIC converter delivering up to 30-W continuous output power using a cost-effective, discrete startup circuitry that allows it to be supplied up to a 80-V input. Another discrete UVLO circuitry prevents from large input currents at low input voltage, so the power supply is able to handle an input range of 1:8. The internal driver of the controller is boosted by a small external push- pull stage using bipolar transistors. This allows it to be used with a coupled inductor from stock results in less amount and stress for the flying capacitors. Furthermore, there is no need for additional damping RC network.
| Output voltage options | PMP30465.1 |
|---|---|
| Vin (Min) (V) | 10 |
| Vin (Max) (V) | 80 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 3 |
| Output Power (W) | 36 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Sepic- CCM |
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 | 30-W SEPIC reference design with extended input voltage range | Jan. 23, 2019 |
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.