TY - GEN
T1 - A 0.6-V input 94% peak efficiency CCM/DCM digital buck converter in 40-nm CMOS with dual-mode-body-biased zero-crossing detector
AU - Zhang, Xin
AU - Okuma, Yasuyuki
AU - Chen, Po-Hung
AU - Ishida, Koichi
AU - Ryu, Yoshikatsu
AU - Watanabe, Kazumori
AU - Sakurai, Takayasu
AU - Takamiya, Makoto
PY - 2013/12/1
Y1 - 2013/12/1
N2 - A 0.6-V input, 0.3-0.55V output buck converter is developed in 40-nm CMOS, for low-voltage low-power wireless sensor network systems. The buck converter is able to automatically select DCM or CCM operation, therefore improving the power efficiency and enlarging the output current range, by virtue of the proposed low-power CCM/DCM controller. A dual-mode-body-biased (DMBB) (forward body bias & zero body bias) low-voltage zero-crossing detector is designed to enable DCM operation with both low supply voltage and normal supply voltage. The proposed buck converter achieves a peak efficiency of 94% with an output current range of 50μA to 10mA. Thanks to the DCM operation, the efficiency at an output current of 100μA is improved by 20% and 9%, with an output voltage of 0.35V and 0.5V, respectively.
AB - A 0.6-V input, 0.3-0.55V output buck converter is developed in 40-nm CMOS, for low-voltage low-power wireless sensor network systems. The buck converter is able to automatically select DCM or CCM operation, therefore improving the power efficiency and enlarging the output current range, by virtue of the proposed low-power CCM/DCM controller. A dual-mode-body-biased (DMBB) (forward body bias & zero body bias) low-voltage zero-crossing detector is designed to enable DCM operation with both low supply voltage and normal supply voltage. The proposed buck converter achieves a peak efficiency of 94% with an output current range of 50μA to 10mA. Thanks to the DCM operation, the efficiency at an output current of 100μA is improved by 20% and 9%, with an output voltage of 0.35V and 0.5V, respectively.
UR - http://www.scopus.com/inward/record.url?scp=84893559858&partnerID=8YFLogxK
U2 - 10.1109/ASSCC.2013.6690978
DO - 10.1109/ASSCC.2013.6690978
M3 - Conference contribution
AN - SCOPUS:84893559858
SN - 9781479902781
T3 - Proceedings of the 2013 IEEE Asian Solid-State Circuits Conference, A-SSCC 2013
SP - 45
EP - 48
BT - Proceedings of the 2013 IEEE Asian Solid-State Circuits Conference, A-SSCC 2013
Y2 - 11 November 2013 through 13 November 2013
ER -