So let me start off by saying I'm brand new at this, but I'd like to learn. I have a 3v Motor that I need to run. I want to create a way to use a rechargeable Lipo to run the motor. How can I keep a lipo battery discharging at 3volts continuously? If I am being to Vague let me know. I'll answer any questions you have. I'm also connecting the motor to a momentary switch. I want everything to be as safe as possible. Thank you again.
A buck-boost regulator is designed to provide a constant voltage from a varying input voltage, such as the output of a battery pack.
Use a voltage regulator which takes input in the range 3V - 4.2V and outputs 3V.
Since a Li-Po battery can have voltages between 3V to 4.2V depending upon charge level, it would make sense to use a buck-boost converter like TPS61170DRVR which can accept a voltage as low as 3V and will still output 3V.