Hi,
My customer plans to input VBUS = 3P3v = 3.3V, VCC = V1P8V = 1.8V. Could you please let us know the limitation of power sequence?
He plans the following power-up/down sequence.
- Power-UP : 1.8V up -> 3.3V up
- Power-OFF : 3.3V off -> 1.8V off
1.8V:___| ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄|____
3.3V:_______| ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄|________
Does this sequence has any issues? Please let us know.
Thanks and best regards,
M.HATTORI.