In this reference design, the TPS62120 provides a small, simple, and efficient voltage inverting circuit to be used for low power negative voltage rails, such as biasing an op amp. This configuration has been tested with a full test report and operation explanation.
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
Design file that contains information on physical board layer of design PCB
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Application note | Using the TPS62120 in an Inverting Buck-Boost Topology (Rev. C) | PDF | HTML | Nov. 29, 2022 | |
| Technical article | How to modify a step-down converter to the inverting buck-boost topology | PDF | HTML | May 17, 2018 | |
| Test report | PMP9752 Test Results | May 02, 2014 |
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