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A Highly Integrated Power Management IC for Advanced Mobile Applications

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5 Author(s)
Chunlei Shi ; Qualcomm Inc., San Diego, CA ; Walker, B. ; Zeisel, E. ; Hu, B.
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Wireless communication now has the speed and power to converge seamlessly with other consumer and business electronics. However, battery technology has not kept pace with advancement in circuit technology. As a result, design of power management is becoming a more complex problem for this new generation of wireless devices with converged voice, data, and multimedia. In this paper, a highly integrated power management IC (PMIC) is presented which enables mobile devices that are more cost-effective, thinner and more compact with better power efficiency. The overall architecture and system level design considerations are described. The design details of a key building block -low-dropout linear regulator (LDO) - are also discussed, including a novel frequency compensation method

Published in:

Custom Integrated Circuits Conference, 2006. CICC '06. IEEE

Date of Conference:

10-13 Sept. 2006