A 1-A DC-DC converter with embedded digital controller is implemented in 65-nm CMOS technology. The digital controller based on a customized, multi-function SAR ADC, occupies 0.038 mm2 and consumes 115.5 μA from a 1.2-V supply, making the DC-DC converter suitable for portable applications. The DC-DC converter implements Continuous-Conduction Mode (CCM) control for high-current loads, a Pulse-Skipping (PSK) feature, in order to keep high efficiency at light loads, and automated switching between these two modes, in order to guarantee the best possible transient performance and efficiency. © 2011 IEEE.
Cliquennois, S., Donida, A., Malcovati, P., Baschirotto, A., Nagari, A. (2011). A 65-nm, 1-A buck converter with multi-function SAR-ADC-based CCM/PSK digital control loop. In ESSCIRC (ESSCIRC), 2011 Proceedings of the (pp.427-430) [10.1109/ESSCIRC.2011.6044998].
A 65-nm, 1-A buck converter with multi-function SAR-ADC-based CCM/PSK digital control loop
BASCHIROTTO, ANDREA;
2011
Abstract
A 1-A DC-DC converter with embedded digital controller is implemented in 65-nm CMOS technology. The digital controller based on a customized, multi-function SAR ADC, occupies 0.038 mm2 and consumes 115.5 μA from a 1.2-V supply, making the DC-DC converter suitable for portable applications. The DC-DC converter implements Continuous-Conduction Mode (CCM) control for high-current loads, a Pulse-Skipping (PSK) feature, in order to keep high efficiency at light loads, and automated switching between these two modes, in order to guarantee the best possible transient performance and efficiency. © 2011 IEEE.
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