Power Estimation of 66AK2H14BAAWA24 Processor: Regulator sharing

Nanjunda M

Expert 2485 points

Other Parts Discussed in Thread: LM10011, TPS53355

Hi,

We are going to use 5 nos of Processor 66AK2H14BAAWA24 in our design and we are in planning stage now.

Currently we are doing Power estimation. Please let me know below things :

Consider CVDD (1V) power net of a Processor IC.

Now whether we can use 1 Voltage regulator of 1V and share it to all the 5 Processor ICs (meeting the total current requirements of 1V of all 5 regulators) or is there any requirement like we should use separate 5 regulators for each Processor?

Above query holds good for all the voltage nets of Processor IC. Please confirm.

Regards,

Vijetha

over 9 years ago

0 Senthilkumar Srinivasan over 9 years ago

TI__Mastermind 43660 points

Nanjunda,

Please see the attached presentation put together some time back by our power team. It shows an optimized solution for powering multiple K2H devices on slide 10.

6305.TI Analog Solutions for Keystone2 Family.pdf

Regards,

Senthil

0 vijetha hn over 9 years ago in reply to Senthilkumar Srinivasan

Expert 1230 points

Hi,

Thank you for the details.

Just one doubt, for core voltage a combination of TPS53355 and LM10011 are used.

Whether LM10011 is really required here as we set the output voltage through feedback resistor values. Is this must needed or just an option ?

Regards,

Vijetha

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Power Estimation of 66AK2H14BAAWA24 Processor: Regulator sharing