@inproceedings{0f77db562e14497aaa57c4321eeb7999,
title = "A pseudo-noise coded constant-off-time (PNC-COT) control switching converter with maximum 18.7 dBm peak spur reduction and 92% efficiency in 40 nm CMOS",
abstract = "A pseudo-noise coded constant-off-time (PNC-COT) controlled switching converter is proposed in the power module to provide fast envelope tracking and reduced voltage ripple of the supply for radio-frequency power amplifier. The proposed spread spectrum frequency controller (SSFC) conquers the difficulty in spread spectrum realization for the COT control owing to the lack of clock signal. With pseudo-noise coded controlled, low electromagnetic interference is accomplished by softly spreading the switching frequency. Thus, fast voltage tracking, highest 92% efficiency, 35 mV voltage ripple and a 18.7 dBm peak spur reduction can be achieved in a fabricated SS embedded power module with an active area of 0.476mm2 in 40nm CMOS process.",
author = "Su, {Yi Ping} and Lee, {Yu Huei} and Chen, {Wei Chung} and Ke-Horng Chen and Lin, {Ying Hsi} and Tsai, {Tsung Yen} and Huang, {Chen Chih} and Lee, {Chao Cheng}",
year = "2013",
month = sep,
day = "17",
language = "English",
isbn = "9784863483484",
series = "IEEE Symposium on VLSI Circuits, Digest of Technical Papers",
booktitle = "2013 Symposium on VLSI Circuits, VLSIC 2013 - Digest of Technical Papers",
note = "null ; Conference date: 12-06-2013 Through 14-06-2013",
}