A Power Management Unit with Continuous Co-Locking of Clock Frequency and Supply Voltage for Dynamic Voltage and Frequency Scaling

Jeabin Lee, Byeong-Gyu Nam, Seong-Jun Song, Namjun Cho, Hoi-Jun Yoo
2007 2007 IEEE International Symposium on Circuits and Systems  
A power management unit (PMU) architecture is proposed for the domain-specific low power management with dynamic voltage and frequency scaling. The PMU continuously co-locks and dynamically varies the supply voltage and the clock frequency from 89 MHz to 200 MHz and from 1.0 V to 1.8 V , respectively, in less than 40µs. A 32bit RISC processor is used as power management target device. The PMU, 0.36mm 2 with 0.18-µm CMOS process, consumes 5mW, and shows -100dBm/Hz phase noise of clock and 160mV
more » ... of clock and 160mV load regulation of supply voltage with 100mA load current from the load, RISC processor. I. 1-4244-0921-7/07 $25.00 © 2007 IEEE.
doi:10.1109/iscas.2007.378516 dblp:conf/iscas/LeeNSCY07 fatcat:v4awjtgs2rdkherbrpxwvvonze