Hi,
I want to use the TPS61235 boost converter to step up voltage coming from a lipo battery that would be attached to a battery charger IC that has a power path feature which is where the input of the TPS61235 would come from. The battery is rated at 3.7V and 6000mAh. The load will be a raspberry pi 4 so I would want the TPS61235 to output 5.1V/3A. The current drawn from the load would vary from 1A to 2.5A so I would like to be able to output 3A. The raspberry Pi has an operating voltage of 4.75-5.25V. Should I use the constant current feature to limit the current to 3A? Is the CC feature even to limit the current? I had concerns as I read the boost converter datasheet and saw this.
Does this mean that if the load draws more than 3A then it would lower the output voltage? I am worried as I would like for the converter to output 5.1V constantly to meet the Pi's requrements.
Thank you,
Andy