|International Journal of Computer Applications
|Foundation of Computer Science (FCS), NY, USA
|Volume 142 - Number 4
|Year of Publication: 2016
|Authors: Varun Kumar Singhal, Tarun Kumar Gupta
Varun Kumar Singhal, Tarun Kumar Gupta . Low Power Dropout Regulators with Efficiently Controlled Transient Response. International Journal of Computer Applications. 142, 4 ( May 2016), 38-41. DOI=10.5120/ijca2016909758
The Low-Dropout voltage regulators are significant part of VLSI design integrated chips and are used to provide steady supply voltage to noise sensitive analog/RF circuit blocks. It belongs to class of linear regulators designed to minimize the saturation of output pass transistor and its drive requirements. A capacitor-less low-dropout regulator with improved performance push–pull power transistor is described in the paper. The proposed LDO is stable over a wide range of load current and implemented in 65-nm CMOS process technology. The simulation illustrates that the regulator is able to convert VIN of 0.65V- 1.5V to output voltage of 0.5V. This LDO achieves power supply rejection of >40dB at 1 kHz operating frequency. It consumes a quiescent current less than 10 uA. It is capable of delivering a maximum load current of 70 mA with a dropout voltage of less than 220 mV.