voltage reference vs voltage regulator
Hi All,
Could you pleas let me know the difference between voltage regulator and voltage reference circuits?
As I understand, reference voltage circuit aims to provide a voltage which is not dependent on PVT variations. And the purpose of voltage regulator is to provide a voltage which is constant regardless of power supply variation. Thus, it seems to me that voltage regulator is just kind a subset of voltage reference circuit. Is that right ?
Why does we need a voltage regulator while we can have fixed voltage with reference circuit?
I'm looking forward to hearing from you.
Thanks.