A PFM-regulated switched-capacitor DC-DC converter with enhanced-ripples technique
Bahry, Mohamed Khairy; El-Nozahi, Mohamed; Hegazi, Emad;
Abstract
This paper presents an all-digital switched-capacitor DC-DC converter with an Enhanced Ripples Technique (ERT) which enhances the ripples values by a factor of up to 2.5X without affecting the efficiency. The SC converter converts the battery voltage (3.6 V nominally) into an output voltage of 1V. The SC converter is implemented in 0.13 μm CMOS technology using thick oxide I/O devices and achieves a maximum efficiency of 71%. The SC converter regulates up to 12 mA load current using PFM technique. Output voltage ripples is less than 50 mV.
Other data
| Title | A PFM-regulated switched-capacitor DC-DC converter with enhanced-ripples technique | Authors | Bahry, Mohamed Khairy; El-Nozahi, Mohamed; Hegazi, Emad | Keywords | CMOS DC-DC converter | Fully integrated converter | PFM | Switched capacitor | Issue Date | 24-Jan-2018 | Journal | Proceedings of the International Conference on Microelectronics, ICM | ISBN | 9781538640494 | DOI | 10.1109/ICM.2017.8268817 | Scopus ID | 2-s2.0-85045153239 |
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