Mr.Cool,
Thanks for your input! But I mean power bus spike inside IC instead of PCB.So tantelums are beyond our options...
True, deccoupling cap is usually a good option for reducing power bus spike if its power consumption is tolerable. But for power critical applications like mobile phone etc, too much decoupling cap will kill its limited power budget. Thus, we need to find an alternative to achieve both low power bus spike and low power consumption.
Any inputs/comments are welcome. Thanks.
regards,
jordan76