An integrated four-phase buck converter delivering 1A/mm2 with 700ps controller delay and network-on-chip load in 45-nm SOI


Journal Article

We present a four-phase integrated buck converter in 45nm SOI technology. The controller uses unlatched pulse-width modulation (PWM) with nonlinear gain to provide both stable small-signal dynamics and fast response (∼700ps) to large input and output transients. This fast control approach reduces the required output capacitance by 5X in comparison to a controller with latched PWM at similar operating point. The converter switches at 80MHz and delivers 1A/mm2 at 83% efficiency and 0.66 conversion ratio. © 2011 IEEE.

Full Text

Duke Authors

Cited Authors

  • Sturcken, N; Petracca, M; Warren, S; Carloni, LP; Peterchev, AV; Shepard, KL

Published Date

  • November 9, 2011

Published In

International Standard Serial Number (ISSN)

  • 0886-5930

Digital Object Identifier (DOI)

  • 10.1109/CICC.2011.6055336

Citation Source

  • Scopus