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TPS51100: Can this part be used for DDR4 VTT solution

Part Number: TPS51100
Other Parts Discussed in Thread: TPS51200

we used TPS51100 for the DDR4 VTT solution in our board design.

but we find that TPS51100 is designed for DDR,DDR2,DDR3, and TPS51200 is designed for DDR,DDR2,DDR3,DDR4.

so can we use TPS51100 for DDR4 VTT solution? we already used it in our product, how about the risk?