This two-switch buck-boost reference design controlled by LM5118 steps up and steps down an input voltage range of 30-V to 60-V to either 24-V or 48-V output voltage. Jumper three at digital-to-analog converter (DAC) is used to decide 24 V or 48 V with jumper 48 VOUT and without 24 VOUT. For the final application, the 48-V output voltage is needed for short-term use of less than 1 s. For test purposes, the power stage withstands power level continuously, so the power stage can be shrunk for the final application.
| Output voltage options | PMP30833.1 |
|---|---|
| Vin (Min) (V) | 30 |
| Vin (Max) (V) | 60 |
| Vout (Nom) (V) | 24 |
| Iout (Max) (A) | .3 |
| Output Power (W) | 7.2 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Buck Boost- 2 Switch^Buck Boost- Non Sync |
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
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Design file that contains information on physical board layer of design PCB
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| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | 30-W Two-Switch Buck-Boost Reference Design With 24-V or 48-V Output | PDF | HTML | Jun. 08, 2022 |
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