TY - GEN
T1 - A high efficiency wide-load-range asynchronous boost converter with time-based dual-mode control for SSD applications
AU - Lee, Kyoungjin
AU - Kim, Haneul
AU - Yoon, Jehyung
AU - Oh, Hyoung Seok
AU - Park, Byeong Ha
AU - Park, Hojin
AU - Lee, Yoonmyung
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/2/6
Y1 - 2017/2/6
N2 - A highly integrated, high-voltage dual-mode boost converter is presented for solid-state drive (SSD) applications, where standby mode efficiency with < 500 μA load is as critical as active mode efficiency with > 100 mA load. To enhance efficiency in light load condition and to achieve wide operation load range, loss minimization by balancing conduction and switching loss is adopted and dynamic power gating scheme is applied for PFM mode operation. Moreover, robust dual mode operation is implemented with time-based control scheme, which enables operation with lower peak current for optimal loss balancing. The proposed converter is fabricated in 130 nm CMOS process with an area of 1.7 mm2. The measured efficiency for supplying 12 V output from 5.5 V input is 91% at its peak and 85% with extremely light load of 200 μA. It also achieves wide load range of 34.6 dB for > 85% efficiency and 18.8 dB for > 90% efficiency.
AB - A highly integrated, high-voltage dual-mode boost converter is presented for solid-state drive (SSD) applications, where standby mode efficiency with < 500 μA load is as critical as active mode efficiency with > 100 mA load. To enhance efficiency in light load condition and to achieve wide operation load range, loss minimization by balancing conduction and switching loss is adopted and dynamic power gating scheme is applied for PFM mode operation. Moreover, robust dual mode operation is implemented with time-based control scheme, which enables operation with lower peak current for optimal loss balancing. The proposed converter is fabricated in 130 nm CMOS process with an area of 1.7 mm2. The measured efficiency for supplying 12 V output from 5.5 V input is 91% at its peak and 85% with extremely light load of 200 μA. It also achieves wide load range of 34.6 dB for > 85% efficiency and 18.8 dB for > 90% efficiency.
UR - https://www.scopus.com/pages/publications/85015247664
U2 - 10.1109/ASSCC.2016.7844123
DO - 10.1109/ASSCC.2016.7844123
M3 - Conference contribution
AN - SCOPUS:85015247664
T3 - 2016 IEEE Asian Solid-State Circuits Conference, A-SSCC 2016 - Proceedings
SP - 13
EP - 16
BT - 2016 IEEE Asian Solid-State Circuits Conference, A-SSCC 2016 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th IEEE Asian Solid-State Circuits Conference, A-SSCC 2016
Y2 - 7 November 2016 through 9 November 2016
ER -