Abstract: The present disclosure relates to semiconductors and low dropout regulator (LDO) circuits. A LDO circuit may include first and second adjustment pipes and first and second error amplifiers. When an output voltage outputted by the output end of the LDO circuit is smaller than a reference voltage, the first error amplifier controls the first adjustment pipe to be turned on, and the second error amplifier controls the second adjustment pipe to be turned off. Alternative, when the output voltage is greater than the reference voltage, the first error amplifier controls the first adjustment pipe to be turned off, and the second error amplifier controls the second adjustment pipe to be turned on.