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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.
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LDO输出电压为何会振荡？
LDO使用负反馈调节其输出电压。当用于检测输出电压（VOUT）变化的信号相位滞后180°时，输出电压会发生振荡，从而将负反馈变为正反馈。LDO包含一个误差放大器、一个用于输出晶体管的驱动电路和一个输出晶体管。由于这些电路的电容和电阻，反馈回路存在固有延迟。如果反馈回路具有增益，则当此固有延迟导致的相位延迟达到180°时，负反馈会变为正反馈，从而导致输出电压与参考电压之间的电压差被放大。
关于其它LDO稳压器，请访问LDO稳压器主页：