Single-inductor multiple-output switching converters with time-multiplexing control in discontinuous conduction mode

被引：273

作者：

Ma, DS ^{[1
]}

Ki, WH ^{[1
]}

Tsui, CY ^{[1
]}

Mok, PKT ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2003年 / 38卷 / 01期

关键词：

cross regulation; discontinuous conduction mode (DCM); pulsewidth modulation (PWM); single-inductor dual-output (SIDO) converter; single-inductor multiple-output (SIMO) converter; time-multiplexing (TM) control;

D O I：

10.1109/JSSC.2002.806279

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An integrated single-inductor dual-output boost converter is presented. This converter adopts time-multiplexing cone trol in providing two independent supply voltages (3.0 and 3.6 V) using only one I-pH off-chip inductor and a single control loop. This converter is analyzed and compared with existing counterparts in the aspects of integration, architecture, control scheme, and system stability. Implementation of the power stage, the controller, and the peripheral functional blocks is discussed. The design was fabricated with a standard 0.5-mum CMOS n-well process. At an oscillator frequency of I MHz, the power conversion efficiency reaches 88.4% at a total output power of 350 mW. This topology can be extended to have multiple outputs and can be applied to buck, flyback, and other kinds of converters.

引用

页码：89 / 100

页数：12

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