一种快速启动低噪声片上电源  

A Fast Startup and Low Noise Power On-chip

作　　者：杨少丹 阴亚东[1,3] 刘韵清 

机构地区：[1]中科院微电子研究所昆山分所,江苏昆山215347 [2]杭州电子科技大学电子信息学院,杭州310018 [3]中国科学院微电子研究所,北京100029

出　　处：《固体电子学研究与进展》2014年第1期86-89,共4页Research & Progress of SSE

基　　金：国家科技重大专项03专项基金资助项目(2012ZX03004006);江苏省科技支撑计划资助项目(BE2013067)

摘　　要：设计了一种快速启动的低噪声射频片上电源，采用能够快速启动的RC低通滤波器在降低噪声的同时减少启动时间。在SMIC0．18μmCMOS工艺下进行了设计、仿真与制造，电源的总面积为0．107mm^2。。仿真结果表明：输入电压为2～3．6V，输出电压为1．8V；在整个工作电压范围内，负载电流为10mA时，片上电源启动时间小于28μp；在1～100kHz频率范围内总积分噪声电压小于51．24μV；静态功耗电流为170μA（其中BGR消耗了133μA）。测试结果表明，片上电源可以很好地抑制1／f噪声．This paper presents a fast startup, low noise RF power on-chip, which has a RC low-pass filter to reduce the noise while reducing start-up time. The proposed structure has been designed and fabricated in SMIC 0. 18 μm CMOS process. The total area of the power is 0. 107 mme. Post-layout simulation results show that the stable output voltage is 1.8 V with a supply voltage of 2~3.6 V. Over the entire operating voltage range, the startup time of the power is less than 28 μs with the load current of 10 mA. The integrated noise voltage from 1 kHz to 100 kHz is less than 51.24 μV. The quiescent current consumption is 170 μA （133 μA for band-gap reference）. Experimental results show that the l/f noise is reduced in output of the LDO.

关 键 词：低压差线性稳压器 快速启动 低噪声 RC滤波器 

分 类 号：TM44[电气工程—电器] TN43[电子电信—微电子学与固体电子学]