A wide input voltage range, output-capacitorless linear voltage regulator in 0.25UM BCD process

2015 China Semiconductor Technology International Conference Pub Date : 2015-07-13 DOI:10.1109/CSTIC.2015.7153481

Danhui Wang, Yuanfu Zhao, S. Yue

引用次数: 1

Abstract

Linear voltage regulators are widely used in electronic systems for low noise and precise output voltage. This paper presents an output-capacitorless linear voltage regulator with 5.5V~40V input voltage, 5V output voltage and 100mA load current. The damping-factor-control (DFC) frequency compensation has effectively enhanced the loop stability. A high to low circuit is presented to supply power for the low working voltage bandgap. Finally, the load regulation is 75uV/mA @ VIN=40V; line regulation is 0.0019%; quiescent current is 130μA @VIN=5.5V and 600μA @VIN=40V. The proposed regulator also has fine load transient response.

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0.25UM BCD工艺中宽输入电压范围、无输出电容线性稳压器

线性稳压器以其低噪声和精确的输出电压被广泛应用于电子系统中。本文设计了一种无输出电容线性稳压器，输入电压为5.5V~40V，输出电压为5V，负载电流为100mA。阻尼因子控制(DFC)频率补偿有效地提高了回路的稳定性。为满足低工作电压带隙的要求，设计了一种高到低电路。最后，负载调节为75uV/mA @ VIN=40V;线路调节为0.0019%;静态电流分别为130μA @VIN=5.5V和600μA @VIN=40V。该调节器还具有良好的负载瞬态响应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2015 China Semiconductor Technology International Conference

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