AM2431: Which power supply 1.8V should we use for the MCU_POR ?

Tool/software:

Hello，

I have some questions about 1.8V using to MCU_POR. Our PMIC part number is TPS6521908, MPU is AM2431.

It is the VCC1V8 output circuit of demo board. The demo board use the VCC1V8 to 74LVC1G11.

However, the circuit we are using is like this.

Our PMIC part number is TPS6521908, and it produce 1V8A. Then the 1V8A directly use for the logical AND circuit to produce MCU_POR .

Which power supply should we use for the MCU_POR ? Please assist in assessing the risks.

Thank you.

Thanks.