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It is low the dropout which possesses the power supply voltage fluctuation removal ratio of wide bandwidth voltage generator regulator
It is low the dropout which possesses the power supply voltage fluctuation removal ratio of wide bandwidth voltage generator regulator
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机译:具有宽带电压发生器稳压器的电源电压波动消除率低的低压差
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摘要
A low drop-out (LDO) voltage regulator with a wide bandwidth power supply rejection ratio (PSRR) is described. In one aspect, the LDO voltage regulator includes two individual voltage regulator circuit stages. A first stage voltage regulator circuit output is at an intermediate voltage (VINT) between an input supply voltage (VDD) and a final regulated output voltage (VREG). A second stage voltage regulator circuit output is at the final regulated output voltage (VREG) and is optimized for noise-sensitive analog circuits across a wide operating bandwidth. The first stage voltage regulator circuit has a zero frequency while the second stage voltage regulator circuit has a matching pole frequency to minimize the AC response from VDD to VREG across all frequencies.
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