This reference design employs LM5155 Boost/Flyback/SEPIC controller to provide 6-W outputs with dual-output SEPIC topology. The input is 12-VDC, and outputs are ±60 V/50 mA. The switching frequency is set at 500k Hz. This design achieves 88.2% peak efficiency. The cross regulation of -60-V rail is within ±4% at the total load range. External voltage control pin is optional to regulate output voltage from 0~60 V. The high efficiency and small PCB dimensions (25mm*14mm*4.5mm) make the design suitable for portable ultrasound probe application.
| Output voltage options | PMP40488.1 | PMP40488.2 |
|---|---|---|
| Vin (Min) (V) | 9 | 9 |
| Vin (Max) (V) | 12 | 12 |
| Vout (Nom) (V) | 60 | -60 |
| Iout (Max) (A) | .05 | -.05 |
| Output Power (W) | 3 | 3 |
| Isolated/Non-Isolated | Non-Isolated | Non-Isolated |
| Input Type | DC | DC |
| Topology | Sepic- CCM | 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 | 6-W Dual-Output SEPIC Converter Reference Design (Rev. B) | Apr. 21, 2020 |
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.