HI.
I used TPS56C215 for supply 0.85v to Xilinx FPGA Zynq Ultrascle+ MPSoC.
I made a supply circuit by referencing "Xilinx-Zynq-US+ Scalable PMIC Power Design"
I want to confirm the question
1. To obtain 0.85V for VCC_12A,
R63 = R62 * (Vout/Vref -1)
where Vout = 0.85V, Vref = 0.6V, R62= 100kΩ
R63 = 100k * (0.85/0.6 -1 ) ≒41.6KΩ
Is that right ?
2. Is Output Capacitance(C58-61) and Inductance (L7) for Vout 0.85V is the same with each value in reference circuit ?
3. May I use VREG5 for VIO which connects PGOOD signal in reference circuit ?
4. For EN signal (BUCK_12A_EN), can I connect to the center tap of the resistor divder between VSYS(5V) and AGND to get over 1.2V
