一种低功耗高精度电流模并联调整器  

A Low-power High-accurate Current-mode Shunt Regulator

作　　者：任国栋[1] 边玉坤[2] 戴剑锋[1] 王道斌[1] 雷景丽[1] 

机构地区：[1]兰州理工大学理学院,兰州730050 [2]兰州大学电子材料与器件工程研究所,兰州730000

出　　处：《固体电子学研究与进展》2011年第6期619-623,共5页Research & Progress of SSE

摘　　要：基于高压2μm BIPOLAR工艺设计了一种面积仅为0.38mm2的低功耗高精度电流模并联调整器。室温下基准电压的容差±5‰,在0～70°C时基准电压的温度系数23×10-6/°C。通过两个外部电阻输出电压可编程为2.5～36V。实验表明,调整器的最小阴极电流是300μA,无振荡;动态阻抗0.18Ω;能满足开关电源适配器的应用要求。A low-power high-accurate current-mode shunt regulator based on high-voltage 2μm BIPOLAR process is presented in this paper. The chip size is 0.38 mmz. The reference voltage tolerance is ±5‰ at room temperature, the temperature coefficient is 23×10^-6℃ from 0 ℃ to 70℃. The output voltage can be programmed from 2.5 V to 36 V with two external resistors. The experiment results show the minimum cathode current is 300 μA without oscillation. The dy- namic impedance is 0. 18Ω. The chin

关 键 词：低功耗 高精度 电流模 并联 

分 类 号：TN431.1[电子电信—微电子学与固体电子学]