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Single-Inductor Multiple-Output DC-DC Converter with Negative Feedback Selection Circuit  

Gong, Jung-Chul (Dep. of electronics & computer engineering, Hanyang Univ.)
Roh, Yong-Seong (Dep. of electronics & computer engineering, Hanyang Univ.)
Moon, Young-Jin (Dep. of electronics & computer engineering, Hanyang Univ.)
Choi, Woo-Seok (Dep. of electronics & computer engineering, Hanyang Univ.)
Yoo, Chang-Sik (Dep. of electronics & computer engineering, Hanyang Univ.)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.48, no.12, 2011 , pp. 23-30 More about this Journal
Abstract
This paper presents a Single-Inductor Multiple-Output (SIMO) DC-DC Converter with a negative feedback selection circuit to improve a regulation property at light load and to generate independent multiple outputs. The conventional SIMO DC-DC converter with a fixed negative feedback circuit cannot regulate correctly at light load. The SIMO DC-DC converter with the proposed negative feedback selection circuit has been designed in 0.35um 2-poly 3-metal BCDMOS. This converter is dual output boost converter with the 1.5V input and 2.5V, 3.0V output. The power conversion efficiency varies from 59% at 10mA loads to 85% at 50mA loads.
Keywords
SIMO; DC-DC; Negative Feedback;
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