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1-4.电子系统LDO稳压器的要求
传统上，电源电路或稳压器IC（如PMICs*1）通常用在电路板上为每块电路或IC提供所需电压。然后，电源电路和稳压器IC为每个电路供电。不过，电路板长布线产生的电阻会造成显著压降，而电路板平行布线之间的串扰往往会影响噪声敏感器件的工作。为解决这些问题，通常采用负载点（POL）稳压器IC在局部形成每块电路或IC所需的电压。
*1电源管理IC：一种用于管理系统中多条电源线的稳压器IC
目前，为提高电子设备性能、缩小尺寸并增强通用性，电路越来越复杂且节能。这种情况下，电路和IC开始采用低电压工作。此外，传感器和高精度模拟电路需要低噪声电路设计。
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