I am trying to drop the voltage coming from a USB power line to 3.3V. I actually plan on using resistors to create a voltage divider (which I may have questions about later), but for now I was trying to experiment with the 1N4148. As I understand from the data sheet, it has a forward voltage of about 0.70V. Well, what I did was connect one to VCC, and checked what the voltage was. Prior to attaching the diode, I was getting about 5.42V, and after connecting, I was getting about 5.0V. Why is the drop not close to the forward voltage?
Thanks. If a diagram is needed, please let me know (although this is quite a simple circuit).
EDIT: Please find a diagram below