This reference design is an automotive, four-switch, buck-boost converter circuit using the LM5176-Q1 controller IC. The power supply is able to step up and step down the input voltage. The design accepts an input voltage of 4.5 V to 27 V and provides a regulated output of 12 V that can deliver up to 30 A, depending on cranking level, cranking time, thermal interface and maximum ambient temperature.
The purpose of this is design is to force a single power stage to maximum output current.
| Output voltage options | PMP31052.1 |
|---|---|
| Vin (Min) (V) | 4.5 |
| Vin (Max) (V) | 27 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 20 |
| Output Power (W) | 240 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Buck Boost- 4 Switch^Buck Boost- Synchronous |
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
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | Four-Switch Buck-Boost Reference Design > 300 W | PDF | HTML | Apr. 11, 2022 |
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