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发明授权
CN101459378B 线性降压调节器 失效 - 权利终止 转让

线性降压调节器
摘要：
本发明是有关于一种线性降压调节器，线性降压调节器的接地为模拟地，并且此接地与一切换电路的数字地连接在一起，所述线性降压调节器包括：传输组件、分压电阻、误差放大器、MOS晶体管以及低通滤波器，由于所述切换电路的切换噪声会通过数字地与模拟地的连接，经过所述误差放大器的放大而影响线性降压调节器的输出电压，其中所述低通滤波器可以调整所述线性降压调节器的带宽和下降率频率，并用来过滤噪声。
摘要（英）：

The invention relates to a linear step down voltage regulator, grounding of the linear step down voltage regulator is an analog ground, the grounding is digitally connected with a switching circuit, the linear step down voltage regulator comprises a transmission component, a divider resistance, an error amplifier, an MOS transistor and a low pass filter, because switching noise of the switching circuit is connected with the analog ground through a digital ground, output voltage of the linear step down voltage regulator is effected through amplifying by the error amplifier, the low pass filtercan adjust the bandwidth and the frequency of decrease rate of the linear step down voltage regulator, and is used to filter noise.

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