It would be good to check your output load, as it seems you are overloaded since Vout drops.
You can also test the EVM in your system to make sure that your layout and component selection are ok.
Other Parts Discussed in Thread: REG711-33 I am using the REG711-33 to convert/regulate from a 3.3 VDC switching power supply, wall adapter, to a regulated 3.3VDC. The measured DC voltage out my wall adapt is 4.5 volts and the REG711 charge pump regulator…