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TPS51200 DDR termination Regulator, VO and VOSNS left open

Wong Shu Shyuan
Prodigy 10 points
Other Parts Discussed in Thread: TPS51200

I am using TPS51200 DDR  termination Regulator pin 6 (REFOUT) to supply VTTREF for my QDRII+ memory. The QDRII+ itself does has ODT (on-die termination), therefore i do not need to supply VTT, can i left the VO (pin3) and VOSNS(pin 5) open? thanks.