26.6 a 92.4%-Peak-Efficiency 48V to 0.8-to-1.6V Hybrid Converter with Inductor-Interleaved Fibonacci Switched-Capacitor
Abstract
This paper presents a 92.4%-peak-efficiency 48V to 0.8-to-1.6V hybrid converter based on an inductor-interleaved Fibonacci switched-capacitor (I2-FSC). The proposed converter reduces$\Delta \mathrm{V}_{\mathrm{L}}$with few flying capacitors, thereby achieving a high duty cycle under ultra-low VCRs and reducing ACR loss. It also minimizes switching and conduction losses, while current distribution lowers DCR loss and a fixed 0.5 duty in the capacitive path reduces$\mathrm{V}_{0}$ripple. The chip is fabricated in a 180nm BCD process.
Fields of Study & Subjects
Multilevel Inverters and Converters
Advanced DC-DC Converters
Silicon Carbide Semiconductor Technologies
Publication details
- Journal / source
- 2026 IEEE International Solid-State Circuits Conference (ISSCC)
- Publisher
- IEEE
- Pages
- 456–458
- Publication date
- 15 February 2026