Vo of TPS51200 ; VTT and Vref input

If customer is not worry about power loss, can TPS51200 use Vo output to DDR Vtt and Vref (at the same timing)?

※Correct to use are REFOUT to DDR Vref and VO to VTT, but customer will use VO to DDR Vref and VTT.

Best regards,

Satoshi