This reference design showcases a 1-A, 1.5-A peak, output current nonsynchronous SEPIC converter based on LM51561, which covers an input voltage range of 6 V to 36 V with an output voltage of 12 V. The efficiency reaches up to 90.5% at 12-V input voltage. The design can operate as low as 4.5 V to support automotive cranking. The 2-MHz switching frequency allows the use of a smaller inductor for a smaller circuit size.
| Output voltage options | PMP31279.1 |
|---|---|
| Vin (Min) (V) | 6 |
| Vin (Max) (V) | 16 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 1 |
| Output Power (W) | 12 |
| 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.
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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
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | 12-W Nonsynchronous Automotive SEPIC Reference Design | PDF | HTML | Aug. 28, 2023 |
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