1. A 233MHz, 80-87% efficient, integrated, 4-phase DC-DC converter in 90nm CMOS
- Author
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Donald S. Gardner, Vivek De, P. Hack, G. Dermer, Tanay Karnik, Peter Hazucha, Jae-Hong Hahn, S. Borkar, B. Bloechel, Gerhard Schrom, and Siva G. Narendra
- Subjects
business.industry ,Buck converter ,Computer science ,Ćuk converter ,Electrical engineering ,Buck–boost converter ,Hardware_PERFORMANCEANDRELIABILITY ,Inductor ,Decoupling capacitor ,law.invention ,Capacitor ,CMOS ,Hardware_GENERAL ,law ,Boost converter ,Hardware_INTEGRATEDCIRCUITS ,Electronic engineering ,business - Abstract
We demonstrate an integrated buck DC-DC converter implemented in a 90nm CMOS technology for multi-Vcc microprocessors. High switching frequency (100-317MHz), 4-phase topology, and fast hysteretic control reduce inductor and capacitor sizes by 1000x, thereby enabling off-chip inductors with no magnetic core and an on-chip decoupling capacitor. The converter achieves 80-87.7% efficiency and 10% peak-to-peak output noise.
- Published
- 2004
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