Many FPGAs  have sequencing requirements in order to power an FPGA. Sequencing requirements can limit the inrush current during the power up stage of the FPGA. For FPGAs that do not have sequencing requirements, devices such as microcontrollers may have such requirements. Ignoring sequencing can damage devices which will cause devices to malfunction. A simple way to implement power up sequencing is to use voltage regulators with inhibit feature, such as the LMZ3 power modules. Other options for sequencing would be to use sequencer devices such as the LP3470 and supply voltage supervisors such as the LM3880.