Need help with powering FPGA

S

salimbaba

Guest
Hi,
i am using this regulator by Texas Instruments to power up my FPGA i.e
tps75003, [h t tp://focus.ti.com/docs/prod/folders/print/tps75003.html]

They have given an application note of 2A design which is available here :
http://focus.ti.com/lit/ug/slvu116a/slvu116a.pdf

i need to upgrade this design to 3A but i cannot figure out what changes d
i need to make like which components do i need to change. if anyone ha
designed it for 3A, can he kindly share his design with me.Or if you hav
any suggestions on what components to use,that would be great too =) .


Thanks
Regards
SalimBaba

---------------------------------------
Posted through http://www.FPGARelated.com
 
If you like TI then use their Switcher Pro software.

http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html



On 10/22/2010 5:51 PM, salimbaba wrote:
Hi,
i am using this regulator by Texas Instruments to power up my FPGA i.e.
tps75003, [h t tp://focus.ti.com/docs/prod/folders/print/tps75003.html]

They have given an application note of 2A design which is available here :
http://focus.ti.com/lit/ug/slvu116a/slvu116a.pdf

i need to upgrade this design to 3A but i cannot figure out what changes do
i need to make like which components do i need to change. if anyone has
designed it for 3A, can he kindly share his design with me.Or if you have
any suggestions on what components to use,that would be great too =) .


Thanks
Regards
SalimBaba

---------------------------------------
Posted through http://www.FPGARelated.com
Click to expand...
 
On Fri, 22 Oct 2010 16:51:22 -0500, "salimbaba"
<a1234573@n_o_s_p_a_m.n_o_s_p_a_m.owlpic.com> wrote:

Hi,
i am using this regulator by Texas Instruments to power up my FPGA i.e.
tps75003, [h t tp://focus.ti.com/docs/prod/folders/print/tps75003.html]

They have given an application note of 2A design which is available here :
http://focus.ti.com/lit/ug/slvu116a/slvu116a.pdf

i need to upgrade this design to 3A but i cannot figure out what changes do
i need to make like which components do i need to change. if anyone has
designed it for 3A, can he kindly share his design with me.Or if you have
any suggestions on what components to use,that would be great too =) .
Click to expand...
Checkout the following document for different component selection
options: http://focus.ti.com/lit/ds/symlink/tps75003.pdf
Most important parts to be resized are the p-mos fets and the
inductors.
--
Muzaffer Kal

DSPIA INC.
ASIC/FPGA Design Services

http://www.dspia.com
 
Hi muzaffar
i have gone through the datasheet and can't seem to figure out th
component values that's why i asked for help =) . Can you kindly tell me
currently i am using the app note configuration of 2A, app note's link i
given in the first thread.


thanks
regards


---------------------------------------
Posted through http://www.FPGARelated.com
 
On Sat, 23 Oct 2010 01:33:00 -0500, "salimbaba"
<a1234573@n_o_s_p_a_m.n_o_s_p_a_m.owlpic.com> wrote:

Hi muzaffar
i have gone through the datasheet and can't seem to figure out the
component values that's why i asked for help =) . Can you kindly tell me,
currently i am using the app note configuration of 2A, app note's link is
given in the first thread.
Click to expand...
Mosfets and diodes look OK for 3A. You need to change the 15uH
inductor. Try the DO3316P-472 from the list.
--
Muzaffer Kal

DSPIA INC.
ASIC/FPGA Design Services

http://www.dspia.com
 
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