I am using LTC3877EUK#PBF and LTC3874IUFD#PBF in parallel combination.
The Power good of LTC3877EUK#PBF is connected to the Fault 0 and 1 of LTC3874IUFD#PBF as recommended in the application circuit.
But the Power goog signal will stay High for some time and goes low and this sequence is repeating. could you please let me know what could be the reason for this?
Hence the Power Good of the LTC3877 is connected to the Fault 0 and 1 of the LTC3874 the output of the LTC3874 is following the Power good High and low.
When I disable the LTC3874 the Power good of LTC3874 stays high and the output is also proper.
When I removed the Mosfet (2N7002) that is mentioned in the application circuit the Power Good also stays high and the output also proper.
Could you please let me know what could be the reason for this scenario and how I need to do the debug?
I am also attaching the screenshot of the PG signal and Schematic pdf