⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种连续输入电流的无源堆叠三阶降压转换器，通过创新的拓扑结构实现了0.7W/mm²的功率密度和94%的峰值效率，解决了小电感高直流电阻限制功率密度的问题。
The power density and efficiency of power-management integrated circuits (PMICs) is playing an increasingly important role in the miniaturization of modern computing platforms. Small inductors can be used to help miniaturize buck DCDC converters, however as noted in Fig. 8.2.1 (lower left), small inductors tend to have high DC resistance (DCR) – greater than a comparably-sized CMOS switch – such that they ultimately limit the achievable power density of miniaturized buck converters to <0.4W/mm2 when including the area of both the passives and the PMIC [1,2]. While recent work in switched-capacitor (SC) converters has shown that high power density is achievable, it is only possible when employing exotic ultra-high-density capacitors and when operating over a small number of conversion ratios; increasing the number of ratios to support the needs of dynamic voltage scaling loads (e.g., 0.4 to 1.2V) alongside use of conventional
Abdullah Abdulslam, Patrick P. Mercier
University of California, San Diego, La Jolla, CA