TPS51200: VTT for 6 DDR4 IC and REFOUT for REF of 6 DDR4 IC

David Park

Part Number: TPS51200

Hi,

Could you let me know availability of below usage?

VTT --> 6 DDR4 ICs

REFOUT --> REF of 6 DDR4 ICs

How many DDR4 componet can TPS51200 support?

Thanks.

0 Qian Chen over 5 years ago

Hi David,

The different DDR4 IC needs different VTT current.

Can you check how much VTT current is required by each DDR4 IC?

The REFOUT current of DD4 IC is very small. TPS51200 REFOUT can support 6xDDR4.

Thanks

Qian

0 David Park over 5 years ago in reply to Qian Chen

Hi Qian,

it's 300mA per IC.

Is there any reference circuit for usage of REFOUT?

Thanks.

0 Qian Chen over 5 years ago in reply to David Park

Hi David,

The total VTT current is 1.8A. It should be fine to let one TPS51200 to support 6 DDR4 IC.

The TPS51200 REFOUT signal should be connected to DDR4 VREF.

Thanks

Qian

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