A new current-mode fast-transient-response shunt regulator using CMOS technology

被引：1

作者：

Chen, Jiann-Jong ^{[1
]}

Kung, Che-Min ^{[1
]}

Hwang, Yuh-Shyan ^{[1
]}

机构：

[1] Natl Taipei Univ Technol, Dept Elect Engn, Taipei, Taiwan

来源：

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2011年 / 66卷 / 02期

关键词：

Current-mode shunt regulator; Transient response; Miller compensation; GROUND BOUNCE; VOLTAGE; MOTOR; CROSSTALK;

D O I：

10.1007/s10470-010-9522-4

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

The demand for current-mode fast-transient-response shunt regulator is increasing for the growth of portable electronics, such as cellular phones, PDA, laptops, etc. A new current-mode fast-transient-response shunt regulator is presented in this paper. The proposed shunt regulator used a single Miller compensation capacitor to increase stability. The current-mode shunt regulator helps the transient response to be faster than the voltage-mode low-dropout regulator (LDO) and the power noise (bounce noise) is smaller than one. The proposed current-mode shunt regulator has been fabricated with TSMC 0.35 mu m 2P4M CMOS technology. The experimental results show the transient-response time is only 400 ns within 0.5% error and the maximum output voltage dip is only 70 mV for full loading current variation. Moreover, the line and load regulations are 26 mu V/mA and 8 ppm/mA, respectively. The dropout current is 1.0741 mA for loading current 150 mA. The active chip area is 226 mu m x 310 mu m.

引用

页码：189 / 195

页数：7

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