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Design and Analysis of Integrated Low Dropout Linear Regulator

Zheng Zhong

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Abstract

Low dropout(LDO) linear regulator can be installed in a system on chip(SOC) as internal voltage supply.Based on TSMC 0.6 μm BCD high voltage technology,a high precision LDO featured with wide input voltage range is presented.Compared with conventional methods,with the improvement in temperature parameter,frequency compensation and transient output response as well,the output stability precision is ±1.2%,which can satisfy sufficiently what is needed as internal voltage supply,and the maximal output load current is 30 mA.

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What this paper is about

Low dropout(LDO) linear regulator can be installed in a system on chip(SOC) as internal voltage supply.Based on TSMC 0.6 μm BCD high voltage technology,a high precision LDO featured with wide input voltage range is presented.Compared with conventional methods,with the improvement in temperature parameter,frequency compensation and transient output response as well,the output stability precision is ±1.2%,which can satisfy sufficiently what is needed as internal voltage supply,and the maximal output load current is 30 mA.

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Available abstract

Low dropout(LDO) linear regulator can be installed in a system on chip(SOC) as internal voltage supply.Based on TSMC 0.6 μm BCD high voltage technology,a high precision LDO featured with wide input voltage range is presented.Compared with conventional methods,with the improvement in temperature parameter,frequency compensation and transient output response as well,the output stability precision is ±1.2%,which can satisfy sufficiently what is needed as internal voltage supply,and the maximal output load current is 30 mA.

Key concepts: Low-dropout regulator, Dropout voltage, Linear regulator, Voltage regulator, Control theory (sociology), Compensation (psychology), Frequency compensation, Voltage

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