TPS51200: TPS51200

Anusha G A

Prodigy 240 points

Part Number: TPS51200

Can this TPS51200 part be used for generating VTT for LPDDR4

over 2 years ago

0 Kadeem Samuel over 2 years ago

TI__Mastermind 22390 points

Anusha,

I believe that one of the key differences between DDR4 and LPDDR4 is that LPDDR4 does not have VTT.

Which voltage exactly are you trying to use this part for?

Thanks,

Kadeem

0 Anusha G A over 2 years ago in reply to Kadeem Samuel

Prodigy 240 points

About Vref =0.6V for LPDDR4 ..

0 Kadeem Samuel over 2 years ago in reply to Anusha G A

TI__Mastermind 22390 points

Anusha,

Sorry for the delay, it is a holiday weekend here in the US. Depending on the current requirement, the VTTREF can be used for Vref at 0.6V. What is the maximum current expected?

Thanks,

Kadeem

0 Anusha G A over 2 years ago in reply to Kadeem Samuel

Prodigy 240 points

0.5A approx.

0 Kadeem Samuel over 2 years ago in reply to Anusha G A

TI__Mastermind 22390 points

Anusha,

Perhaps it would be best if we continue this discussion via email (k-samuel@ti.com) so that we can get to the bottom of this.

As far as we are aware, the termination standard for LPDDR4 is different than that of DDR4: see this thread: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/574850/tps51206-about-lpddr4-vtt-0-55v

Having said that, the VTT output of the device can support 0.5A at 0.6V.

Thanks,

Kadeem

Power management

Power management forum

TPS51200: TPS51200