A buck-boost converter circuit, such as a non-inverting buck-boost converter, can include two separate control loop circuits to separately control operation of the buck circuit and the boost circuit. The control loop circuits may include two different voltage reference signals, two different current reference signals, two different current feedback signals, two different voltage feedback signals, or a combination thereof. The buck-boost converter circuit can operate in three modes: a buck mode, a transition mode, and a boost mode.