A Multistage Interleaved Synchronous Buck Converter With Integrated Output Filter in 0.18 $\mu$m SiGe Process
A Multistage Interleaved Synchronous Buck Converter With Integrated Output Filter in 0.18 $\mu$m SiGe Process
复制标题
采用 0.18 $mu$m SiGe 工艺且具有集成输出滤波器的多级交错同步降压转换器
DOI：
10.1109/tpel.2007.909288
复制
发表时间：
2007
影响因子：
6.7
通讯作者：
S. Kiaei
中科院分区：
文献类型：
--
作者：
S. Abedinpour;B. Bakkaloglu;S. Kiaei
介绍了带有片上滤波电感器和电容器的完全集成多级交错同步降压 DC-DC 转换器的设计和分析。该 DC-DC 转换器采用 0.18 μm SiGe RF BiCMOS 工艺技术设计和制造，可生成 1.5 V-2.0 V 可编程输出电压，支持最大输出电流 200 mA。与最先进的转换器相比，45 MHz 的高开关频率、多相交错操作和快速迟滞控制器将滤波电感器和电容器的尺寸减小了两个数量级，并实现了完全集成的转换器。完全集成的交错转换器不需要片外去耦和滤波，并且可以为集成应用实现直接电池连接。该设计是第一个报道的具有单片输出滤波器的完全集成多级交错、零电压开关同步降压转换器。完全集成的降压稳压器可实现 64% 的效率，同时提供 200 mA 的输出电流。
The design and analysis of a fully integrated multistage interleaved synchronous buck dc-dc converter with on-chip filter inductor and capacitor is presented. The dc-dc converter is designed and fabricated in 0.18 mum SiGe RF BiCMOS process technology and generates 1.5 V-2.0 V programmable output voltage supporting a maximum output current of 200 mA. High switching frequency of 45 MHz, multiphase interleaved operation, and fast hysteretic controller reduce the filter inductor and capacitor sizes by two orders of magnitude compared to state-of-the-art converters and enable a fully integrated converter. The fully integrated interleaved converter does not require off-chip decoupling and filtering and enables direct battery connection for integrated applications. This design is the first reported fully integrated multistage interleaved, zero voltage switching synchronous buck converter with monolithic output filters. The fully integrated buck regulator achieves 64% efficiency while providing an output current of 200 mA.