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About information presented in this cross reference

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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Ripple Rejection Characteristics (PSRR)

这也称为电源抑制比(PSRR)。纹波抑制比是当纹波电压分量(噪声)叠加在输入电压上时出现在输出电压上的纹波电压与输入纹波电压的比率。这个值越大,输出中出现的波纹分量就越小。东芝LDO稳压器通过超高速反馈电路技术,在宽频率范围内实现了高纹波抑制比。

数字/模拟核心电源,比如CMOS图像传感器、MCU和RF,可能由于外部噪声而导致故障或性能下降。因此,我们需要能够去除外部电源(噪声源)的DC-DC转换器等的开关噪声。换句话说,我们需要有一个更高的纹波抑制比。除了从直流到1kHz的低频范围,我们的LDO稳压器具有高纹波消除能力,涵盖从100kHz到几MHz的高频范围,可以作为一个低噪声的高品质电源。

高纹波抑制LDO稳压器

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