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A 220-MHz Bondwire-Based Fully-Integrated KY Converter With Fast Transient Response Under DCM Operation
Zeng, Wen-Liang; Lam, Chi-Seng; Sin, Sai-Weng; Maloberti, Franco; Wong, Man-Chung; Martins, Rui Paulo
2018-11
Conference NameIEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
Volume65
Issue11
Pages3984-3995
Publication Place445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
AbstractThis paper presents a 220-MHz pulse width modulation (PWM) fully integrated KY dc-dc step-up converter utilizing bondwire as power inductor, with discontinuous conduction mode (DCM) calibration control. We develop the first DCM closed-loop PWM controller for the KY converter, including: 1) its parameter design; 2) a DCM closed-loop voltage mode control with Type II compensator; 3) a zero current detection method to activate DCM control; and 4) a DCM calibration loop. Fabricated in 65-nm CMOS, the designed KY converter core occupies 0.93 mm(2) and achieves an output conversion range of 1.5-2 V from a 1.2-V input. The measured peak efficiency is 75.2% at 97.5 mW. With a 500-ps rising/falling time of the load current step (56 mA), the undershoot/overshoot is 245/205 mV at 146-/140-ns recovery time, and the dc-dc converter achieves a settling time per load transient step of 2.6 ns/mA, which is competitive with the state-of-the-art boost converters.
KeywordFully integrated KY converter boost converter PWM discontinuous conduction mode (DCM) zero current detection (ZCD) load transient response voltage ripple bondwire inductor
DOI10.1109/TCSI.2018.2854370
URLView the original
Indexed BySCI ; CPCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000446922100035
The Source to ArticleWOS
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Document TypeConference paper
CollectionUniversity of Macau
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GB/T 7714
Zeng, Wen-Liang,Lam, Chi-Seng,Sin, Sai-Weng,et al. A 220-MHz Bondwire-Based Fully-Integrated KY Converter With Fast Transient Response Under DCM Operation[C]. 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA:IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC,2018:3984-3995.
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