无电容低压调节器的设计
Design of a capacitor-less low-dropout voltage regulator
AI总结:
本文提出一种无电容低压调节器的稳定性解决方案,通过四级电流放大器中的Miller电容实现超过50度的相位裕度,并采用额外的快速瞬态电路以减少稳定时间与峰值电压。
摘要:
本文提出了一种无电容低压调节器的稳定性解决方案,通过在多级电流放大器中使用4pF Miller电容来实现。借助Miller补偿,可在全负载条件下保证超过50°的相位裕度。此外,采用额外的快速瞬态电路以减少稳定时间和峰值电压。当负载从轻载切换到重载时,峰值电压为40mV,芯片静态电流仅为45uA。
英文摘要:
A solution to the stability of capacitor-less low-dropout regulators with a 4pF Miller capacitor in Multi-level current amplifier is proposed. With the Miller compensation, a more than 50°phase margin is guaranteed in full load. An extra fast transient circuit is adopted to reduce stable time and peak voltage. When the load changes from light to heavy, the peak voltage is 40mV and chip quiescent current is only 45uA.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。