Based on your responses, your design will be a powerbank using the BQ25895 in a single-cell battery configuration, delivering 5V/3A via a USB Type-C port, and incorporating a fuel gauge for accurate battery level monitoring.
Would you like to update the project properties with these design specifications?
Update the project description to reflect the specifications for a single-cell power bank with a 30,000mAh capacity, a USB-C output of 5V/3A, and a fuel gauge.
The project description has been updated to reflect a single-cell power bank design with a 30,000 mAh capacity, a USB-C output of 5V/3A, and the inclusion of a fuel gauge for accurate battery level monitoring.
The BQ25895 datasheet recommends the following decoupling strategy:
High-Frequency Decoupling:
Use one 100nF ceramic capacitor (typically in a 0402 package) placed as close as possible to the VBUS (and/or SYS) pin to filter high-frequency noise. For example, you can use the 100nF 0402 capacitor.
Bulk Decoupling:
In addition, a 10µF capacitor (typically in a 0603 package) is recommended to provide bulk decoupling for stability under load transients. An option is the 10uF 0603 Capacitor.
I will add these decoupling capacitors to your schematic near the appropriate nodes of the BQ25895: one 100nF capacitor for high-frequency bypassing at the VBUS pin and one 10µF capacitor for bulk decoupling at the supply input.