This reference design features the BQ25770/ BQ25773, 2-to-5 cell NVDC quasi-dual-phase buck- boost battery charge controller in a high-density design for notebook PC and portable applications. The dual-phase topology utilizes two small inductors and two half bridge dual-FETs, thus minimizing hot spots and spreading heat across the board. The topology also supports a 2-to-5 cell battery and accepts a wide input range including USB adapter, high voltage USB-C® Power Delivery (PD) sources, and traditional adapters.
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 overview of design layout for component placement
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
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 | ||
|---|---|---|---|---|
| * | Test report | Compact Dual-Phase Multi-Cell Battery Charger Reference Design With Dual FETs | PDF | HTML | Feb 2, 2026 |
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