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发明公开
CN105138064A 一种高带宽高电源纹波抑制比的低压差线性稳压器电路 无效 - 驳回

一种高带宽高电源纹波抑制比的低压差线性稳压器电路
摘要：
本发明公开一种高带宽高电源纹波抑制比的低压差线性稳压器电路，采用嵌入式的电源纹波前馈技术来提高中低频PSR，采用嵌入式的双零点补偿技术，给PSR的传输函数引入一对中频复极点，提高了中高频PSR，从而实现了宽频率范围下的高PSR。本发明的电路结构简单，芯片面积小，功耗低，只需要10uA的静态电流。
摘要（英）：

The invention discloses a low differential pressure linear voltage regulator circuit with high bandwidth high power supply ripple inhibition ratio; the circuit employs embedded power supply ripple feedforward technology to improve low and medium frequency PSR, employs embedded double-zero point compensation technology to introduce a pair of intermediate frequency complex poles to a PSR transmission function, thus improving low and medium frequency PSR, and realizing high PSR under a width frequency scope. The circuit is simple in structure, small in chip area, low in power consumption, and only needs 10ua static state current.

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