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need help reg power suplly for fpga

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Navya

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i want to make a standalone pc card(push in structure).So when inserted in the pci slot can the 3.3v from computer, drive two regulators(2.5v-1.5A & 1.2v-200mA) and one spartan3 fpga?
Is the voltage from the system enough to drive regulators and fpga?
What is the minimum current requires to switch on a spartan3 fpga?
 

I think its not the voltage thats crucial, rather power.. PC shud hav enough power to giv, also check out the current ratings of your devices. When you connect the PCB, it should not load the system..
 

suppose say current rating for the devices comes upto 350mA then will this 3.3v from system sufficient?
 

Are you sure abouty your power requrements?

Check TI website for possible sollutions
 

i couldnt find any.. can u please specify
 

absolutely support.
Total ATX current of 3.3v is greater than 15A.
So you can estimate your current.
 

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    Navya

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