TY - GEN
T1 - High efficiency fully integrated on-chip regulator for wide-range output current
AU - Park, Yongwan
AU - Salman, Emre
N1 - Publisher Copyright:
© 2020 IEEE
PY - 2020
Y1 - 2020
N2 - A novel regulator topology is proposed to achieve high power efficiency for a wide range of output load current. The proposed topology consists of a switched-capacitor regulator and linear low-dropout (LDO) regulator that operate in a parallel fashion. Switched-capacitor circuit not only achieves voltage conversion, but also performs coarse voltage regulation via frequency modulation. The LDO performs fine regulation. The proposed topology, implemented in 45 nm technology, converts the input voltage of 1.15 V to an output voltage of 0.5 V while supplying up to 120 mA current. 80% power efficiency is achieved at a load current of 80 mA. The efficiency is maintained above 60% as the load current varies between 20 mA and 120 mA. The maximum ripple voltage is less than 50 mV.
AB - A novel regulator topology is proposed to achieve high power efficiency for a wide range of output load current. The proposed topology consists of a switched-capacitor regulator and linear low-dropout (LDO) regulator that operate in a parallel fashion. Switched-capacitor circuit not only achieves voltage conversion, but also performs coarse voltage regulation via frequency modulation. The LDO performs fine regulation. The proposed topology, implemented in 45 nm technology, converts the input voltage of 1.15 V to an output voltage of 0.5 V while supplying up to 120 mA current. 80% power efficiency is achieved at a load current of 80 mA. The efficiency is maintained above 60% as the load current varies between 20 mA and 120 mA. The maximum ripple voltage is less than 50 mV.
UR - https://www.scopus.com/pages/publications/85109254323
U2 - 10.1109/iscas45731.2020.9180776
DO - 10.1109/iscas45731.2020.9180776
M3 - Conference contribution
AN - SCOPUS:85109254323
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
BT - 2020 IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020
Y2 - 10 October 2020 through 21 October 2020
ER -