A fully integrated flipped voltage follower (FVF) based capacitor-less low-dropout regulator (LDO) with fast transient response and wide input voltage range is presented. Only two capacitors were used as the detection module to dynamically adjust the transient response without additional auxiliary circuit. The method could make up for deficiencies of the traditional LDO, such as low integration, large area, high power consumption and poor transient response. The proposed circuit was fabricated in TSMC 180 nm process. The simulation results show that the circuit’s dropout voltage is 200 mV, the quiescent current is 36 μA, the input voltage range is 2-4 V, the low frequency PSRR is -59 dB. The generated maximum overshoot is 50 mV, the undershoot is 66 mV, and the transient voltage recovery time is 300 ns when ILOAD changes between 0 mA and 10 mA with an edge time of 150 ns and a load capacitance 30 pF.