One customer designed TPS51200 with Vin=2.5V, VLDOIN=1.8V, VDDQ=1.5V, REFIN=0.75V.
The datasheet just shows a typical timing diagram for start-up/shut-down.
Is there any specific start-up and shut-down sequence requirements for VIN, VLDOIN, REFIN and EN?
Thanks a lot.