TY - GEN
T1 - A low noise buck converter with a fully integrated continuous time ΣΔ modulated feedback controller
AU - Wong, Marnie
AU - Bakkaloglu, Bertan
AU - Kiaei, Sayfe
N1 - Publisher Copyright: © 2007 IEEE.
PY - 2007
Y1 - 2007
N2 - A low noise synchronous buck converter with a fully integrated second order single-bit continuous time σ δ modulator (CT-ΣΔM) based controller is presented. The converter is designed and fabricated on a 0.18 μm SiGe process. The feedback CT-SigmaDeltaM is sampled at 10 MHz with a single-bit non-return-to-zero (NRZ) output. Compared to a traditional PWM controller, the CT-ΣΔM controlled converter shapes the out-of-band noise and suppresses the in-band noise at the switching node by 25 dB with 92% efficiency.
AB - A low noise synchronous buck converter with a fully integrated second order single-bit continuous time σ δ modulator (CT-ΣΔM) based controller is presented. The converter is designed and fabricated on a 0.18 μm SiGe process. The feedback CT-SigmaDeltaM is sampled at 10 MHz with a single-bit non-return-to-zero (NRZ) output. Compared to a traditional PWM controller, the CT-ΣΔM controlled converter shapes the out-of-band noise and suppresses the in-band noise at the switching node by 25 dB with 92% efficiency.
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U2 - 10.1109/CICC.2007.4405756
DO - 10.1109/CICC.2007.4405756
M3 - Conference contribution
T3 - Proceedings of the IEEE 2007 Custom Integrated Circuits Conference, CICC 2007
SP - 377
EP - 380
BT - Proceedings of the IEEE 2007 Custom Integrated Circuits Conference, CICC 2007
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 29th Annual IEEE Custom Integrated Circuits Conference, CICC 2007
Y2 - 16 September 2007 through 19 September 2007
ER -