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TPS51206: DDR3 Regulation

Kazuki Itoh

Genius 10770 points

Part Number: TPS51206

Hi team,

Does TPS51206 support the following DDR3 regulation?

- When VDDQ is <500mV, VREFCA must be <= 300mV.

Regards,

Itoh

over 5 years ago

0 Qian Chen over 5 years ago

TI__Mastermind 24075 points

Itoh-san,

TPS51206 does support DDR3 application.

In DDR3 application, typical VDDQ voltage is 1.5V.

If VDDQ is <500mV, I think the DIMM will not work. Can you double check?

Thanks

Qian

0 Kazuki Itoh over 5 years ago in reply to Qian Chen

TI__Genius 10770 points

Hi Qian-san,

Thanks.

This question is about start-up / shut-down transient. VDDQ is constant 1.5V.

Regards,

Itoh

0 Qian Chen over 5 years ago in reply to Kazuki Itoh

TI__Mastermind 24075 points

Itoh-san,

VTTREF will track VDDQ/2.

When VDDQ is <500mV, VREFCA will be < 250mV.

Thanks

Qian

0 Kazuki Itoh over 5 years ago in reply to Qian Chen

TI__Genius 10770 points

Hi Qian-san,

Thank you so much!

Regards,

Itoh