Switched-Capacitor Converter with Low Dropout Voltage Regulator for Wireless Sensor Nodes

被引：0

作者：

De Guzman, Carl Lester S. ^{[1
]}

Nuestro, Renan C. ^{[1
]}

Roque, Christian K. ^{[1
]}

Alarcon, Louis P. ^{[1
]}

机构：

[1] Univ Philippines, Elect & Elect Engn Inst, Microelect & Microprocessors Lab, Diliman, Philippines

来源：

TENCON 2012 - 2012 IEEE REGION 10 CONFERENCE: SUSTAINABLE DEVELOPMENT THROUGH HUMANITARIAN TECHNOLOGY | 2012年

关键词：

Low Dropout Regulator; Switched-Capacitor Converter; Voltage Regulator;

D O I：

暂无

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：

A 1V unregulated DC voltage from the rectifier of an energy harvesting node is converted down to 650mV regulated DC voltage with 10mV ripple (maximum frequency is 100MHz) by the switched-capacitor converter (SCC) that can supply up to 2.5mA current. For more supply sensitive loads such as RF blocks, a low dropout (LDO) voltage regulator steps down the SCC's output to 500mV regulated DC voltage with at most 1.4% ripple. The LDO can supply a maximum load current of 1mA with 0.98% load regulation. Simulation results in 90nm CMOS show that the SCC has a maximum efficiency of 71% while the LDO has a maximum efficiency of 70.8% at maximum load current.

引用

页数：6

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