The absolute maximum ratings are the limits for these pins, outside of which would physically damage the device. The absolute maximum current rating for the BYP pin is 3.2Arms. However, in reverse boost mode the BYP to CHGIN switch automatically retries after 300ms if CHGIN loading exceeds the 1.5A current limit. The current through the BYP to CHGIN switch is limited to a 1.5A minimum in this mode.