TY - GEN
T1 - Ultra-low IQFully Integrated NMOS LDO with Enhanced Load Regulation and Startup for RF Energy Harvesting Sensors
AU - Zheng, Puyang
AU - Sha, Xiao
AU - Arvind, Dyumaan
AU - Xie, Yang
AU - Stanacevic, Milutin
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - NMOS low-dropout (LDO) voltage regulator architecture with an ultra-low quiescent current is proposed for integration in radio-frequency (RF) energy harvesting sensors. The transient enhanced inverter (TEI) is added to conventional architecture to improve the load transient response. TEI reduces the output voltage undershoot/overshoot to 83.30 % and settling time to 28.65 % to achieve 1 % percision compared to the conventional LDO architecture. The start-up assistant RC (SARC) improves the settling time by 1.22 ms for the step input voltage to LDO. The NMOS LDO regulator with 14.76 nA quiescent current is simulated in the 180 nm CMOS technology. The line and load regulations are respectively 0.012 mV/V and 60 mV/mA with 1 pF load capacitor and maximum 1 μA load current. The PSRR is -60 dB at the low frequencies and -7.3 dB at 1 MHz.
AB - NMOS low-dropout (LDO) voltage regulator architecture with an ultra-low quiescent current is proposed for integration in radio-frequency (RF) energy harvesting sensors. The transient enhanced inverter (TEI) is added to conventional architecture to improve the load transient response. TEI reduces the output voltage undershoot/overshoot to 83.30 % and settling time to 28.65 % to achieve 1 % percision compared to the conventional LDO architecture. The start-up assistant RC (SARC) improves the settling time by 1.22 ms for the step input voltage to LDO. The NMOS LDO regulator with 14.76 nA quiescent current is simulated in the 180 nm CMOS technology. The line and load regulations are respectively 0.012 mV/V and 60 mV/mA with 1 pF load capacitor and maximum 1 μA load current. The PSRR is -60 dB at the low frequencies and -7.3 dB at 1 MHz.
KW - backscattering system
KW - NMOS LDO
KW - small load current
KW - start-up assistant RC
KW - transient enhanced inverter
KW - ultra-low quiescent current
UR - https://www.scopus.com/pages/publications/85185381899
U2 - 10.1109/MWSCAS57524.2023.10406107
DO - 10.1109/MWSCAS57524.2023.10406107
M3 - Conference contribution
AN - SCOPUS:85185381899
T3 - Midwest Symposium on Circuits and Systems
SP - 885
EP - 889
BT - 2023 IEEE 66th International Midwest Symposium on Circuits and Systems, MWSCAS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE 66th International Midwest Symposium on Circuits and Systems, MWSCAS 2023
Y2 - 6 August 2023 through 9 August 2023
ER -