This paper proposes a digital low-dropout regulator(LDO) using fast current generating scheme. The fast current generating scheme achieves the fast settling time of the output voltage by eliminating the ringing problem. The freeze mode detection circuit is suitable for hybrid operation of power management. A chip was implemented with a 0.18μm CMOS process. It achieved 2.12μs settling time and 3.8mV ripple voltage at 1μF output capacitor.