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A DVS embedded power management for high efficiency integrated SOC in UWB system

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11 Author(s)
Yu-Huei Lee ; Dept. of Electr. & Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Shih-Jung Wang ; Yao-Yi Yang ; Kuo-Lin Zheng
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The proposed power management module with 1 V low-voltage PWM controller and dynamic self-biasing mechanism is designed to integrate with ultra-wide band (UWB) system. The on-chip pre-regulator with power conditioning circuit provides a constant and noiseless supply voltage. Instead of using large external compensation circuit, the compensation enhancement multistage amplifier increases system loop gain and stabilizes the system. Moreover, the proposed self-biasing mechanism enhances the power conversion efficiency by 4 % through the handover technique. The fabricated power management module occupies 0.356 mm2 silicon in 65 nm CMOS. With the excellent line/load transient response and the highest efficiency about 93.5%, the proposed power management has the qualification to be integrated in today's system-on-chip (SoC) applications.

Published in:

Solid-State Circuits Conference, 2009. A-SSCC 2009. IEEE Asian

Date of Conference:

16-18 Nov. 2009