Forum Post: tps65217B PMIC SYS pin output problem

Hi,

We are using tps65217B PMIC for powering a custom board based on  AM3352 .

The design is not battery powered. The problem is after connecting 5V to the AC,  PMIC is starting, The SYS pin output correctly, and  VLDO1 output is 1.8V, DCDC1 output is 1.8V, DCDC2 output is 1.1V, DCDC3 output is 1.1V,

But after 2 s the PMIC goes to fault state,  SYS pin output  and all power rails turned off.  

Then repeatly after 2s is ok, after 2s is wrong................

The Attached is  Schematic.

pls help me check.

thanks.