Optimizing Power Management Solutions for Advanced Applications Processors

摘要

There is no reason to worry when using an LDO to power low voltage microprocessors as shown in this article. Ask yourself this question: "Do I really want to use an extra buck converter and inductor to improve system efficiency by just a few percent?" Using a buck converter to power the low voltage rails will increase the size of the PMIC, add another 3x3 mm inductor, and increase the BOM cost and PCB area. In contrast, an LDO is inexpensive, small, and easy to use, not to mention the lowest noise solution and it can be optimized for your application.