This paper demonstrates a two-stage approach for power conversion that combines the strengths of variable-topology switched capacitor techniques (small size and light-load performance) with the regulation capability of magnetic switch-mode power converters. The proposed approach takes advantage of the characteristics of complementary metal-oxide-semiconductor (CMOS) processes, and the resulting designs provide excellent efficiency and power density for low-voltage power conversion. These power converters can provide low-voltage outputs over a wide input voltage range with very fast dynamic response. Both design and fabrication considerations for highly integrated CMOS power converters using this architecture are addressed. The results are demonstrated in a 2.4-W dc-dc converter implemented in a 180-nm CMOS IC process and co-packaged with its passive components for high performance. The power converter operates from an input voltage of 2.7-5.5 V with an output voltage of ≤1.2 V, and achieves a 2210 W/in[superscript 3] power density with ≥80% efficiency.
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机译：本文演示了一种两阶段的功率转换方法，该方法将可变拓扑开关电容器技术（小尺寸和轻负载性能）的优势与磁性开关模式功率转换器的调节能力结合在一起。所提出的方法利用了互补金属氧化物半导体（CMOS）工艺的特性，并且所得设计为低压功率转换提供了出色的效率和功率密度。这些功率转换器可在很宽的输入电压范围内提供低压输出，并具有非常快的动态响应。解决了使用此架构的高度集成CMOS功率转换器的设计和制造注意事项。在以180 nm CMOS IC工艺实现并与其无源组件共封装的2.4 W DC-DC转换器中证明了结果，以实现高性能。功率转换器在2.7-5.5 V的输入电压和≤1.2V的输出电压下工作，并以≥80％的效率实现了2210 W / in [上标3]功率密度。
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