This reference design demonstrates two methods for paralleling the TPS7B7702-Q1 linear regulator to achieve higher load currents which can be required in common applications such as phantom power supplies. The first approach uses external operational amplifiers (op amps) to parallel four TPS7B7702- Q1 channels, delivering up to 1.2A to the load. This technique is scalable and more linear regulator channels can be paralleled for additional current. The second approach uses ballast resistors to parallel two TPS7B7702-Q1 channels, providing up to 500mA of output current.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed overview of design layout for component placement
Complete listing of design components, reference designators, and manufacturers/part numbers
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
Detailed schematic diagram for design layout and components
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Scalable, High-Current, Parallel Automotive Reference Design | PDF | HTML | Oct 16, 2025 |
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