← 返回 JSSC 论文列表JSSC 2022第12期Power Management28nmBuck Converter
A Fully Integrated Multi-Phase Buck Converter With On-Chip Capacitor Dynamic Re-
提出一种全集成多相降压转换器，采用峰值谷值差分检测和动态电容重分配技术，实现高效能和高功率密度。
28nm CMOS, 400MHz/phase, 1.23W/mm², 83.7% peak efficiency, 75mV/ns DVS rate
多相降压转换器动态电容重分配峰值谷值差分检测功率密度动态电压调节
▸峰值谷值差分检测（PVDS）技术平衡多相电流
▸动态电容重分配优化频率响应和输出纹波
▸基于DLL的多相时钟生成实现宽负载范围高效率
Abstract
This article presents a fully integrated multi-phase
(MP) buck converter for on-chip power management units.
A peak-and-valley differential sensing (PVDS) scheme based on
a flying capacitor is proposed to evenly balance the multiple
inductor currents without significant power overhead even under
mismatches in inductances, parasitic series resistances, and
control-signal skews among phases. In addition, dynamic re-
allocation of on-chip capacitors enables an even more optimal
frequency response and