I'm converterting 5V to 3.3V and I see some interesting startup behavior. I have 0.1uF on the NR pin. The supply comes up to about 3.2V in about 5.5ms. Then there is a long RC charge up to the final 3.3V value, about an additional 25ms+. What is going on?
From the block diagram there is a fast charge circuit on the NR pin. What is it doing?