ISL81601 / ISL81601DEMO2Z

Hi,

i am using the demo board 2z and the PC Software evaluating ISL81601 . 

for my test i connect 6x Supercaps to VIN and charge to 15V@5A ,  Voltage 24V feed from a power supply to Vout in parallel i use a current sink with 3A. If i disconnet the power supply , Vout fall direct to ~12V (settings are Vout 22V / Iout 3A) , also Power Good message withhin PC Software goes red. If i reduce the Load current to 2A all works fine and Vout goes to 22V until Supercaps are discharged . 

how to fix this behavior?

Patrick