Other Parts Discussed in Thread: TPS62903
1.
TI solution Page: Power for Xilinx FPGAs
Power for FPGA attach, processors, ASICS | Xilinx | TI.com
select XC7A100T with 1.0V 2.3A, one of the recommended DC/DC Converters is TPS62913.
In the datasheet of TPS62913, Page 22, " the total capacitance for both L-C filters must be less than 200 μF"
BUT, XC7A100T FGG484 package VCCINT (1.0V ) needs "1 of 330 μF, 6 of 4.7 μF, 8 of 0.47 μF" , VCCBRAM(1.0V) needs "1 of 100 μF, 2 of 0.47 μF". (Xilinx UG483 Page 16)
The total capacitance is much larger the 200μF!
Can TPS62913 power VCCINT? Is there any solution for large capacitance with tps62913?
2.
If TPS62913 can not power VCCINT, can I use TPS62903 ?
In the datasheet of TPS62903, there is not max capacitance requirement.
Thanks!