I'm interested in this solution too.
Generally LMZ10501 is very convenient module to use it for fpga. Xilinx require 100+ uF capacitance in series of voltages.
Vccint for Spartan-6: 1.2V requires 105 uF
Vccaux for Kintex-7: 1.8V requires 108 uF
It would be nice if we can use such small module in such cases.