A low-dropout or LDO regulator is a DC linear voltage regulator which can control the output voltage even when the supply voltage is very close to the output voltage. The advantages of a low dropout voltage regulator include the absence of switching noise ( as no switching takes place), smaller device size ( as neither large inductors nor transformers are needed), and greater design simplicity (usually consists of a reference, an amplifier and a pass element). A significant adiabatic logic with 180 nm CMOS technology is proposed to reduce impact of power supply reductions well as a simple symmetric operational transconductance amplifier is used as the error amplifier (EA), with a current splitting method adopted to increase the gain and also improves the bandwidth of the LDO regulator.