Other Parts Discussed in Thread: USB-TO-GPIO2
Use TPS544C25 for CORE power supply VCCINT (0.85V) of Zynq Ultrascale+ SoC XCZU11EGFFVF1517
・Main power supply is +12V
・Set the output voltage with VSET
・PMBUS is not used (a connector is provided)
・CNTL is pull-up with BP3, it is assumed that the power will be turned on when the main power is turned on.
・Soft-start time is set to 1ms in TSNS_SS
・DIFFO/COMP/RT settings were calculated using Webench with the outside temperature set to 50℃.
current situation
Even when the main power is turned on, 0.85V is not output (remains at 0V)
BP3, BP6 are output correctly
CNTL is 3.3V at BP3 pull-up
RESET_B is 3.3V at BP3 pull-up
I don't have USB-TO-GPIO2 at hand, so I don't know the status of the device.
Is there anything I should check?
Do you have any points to point out regarding the circuit design?
