Abstract
We present a high efficiency buck DC-DC converter for switch-mode Lithium-ion (Li-ion) battery charger. To achieve a high efficiency over a wide load range, the converter enters a power saving pulse-frequency modulation (PFM) mode at light load currents. And the proposed buck converter features an automatic mode change between pulse-width modulation (PWM) and PFM depending on the load current level. The chip was fabricated in a 0.18 µm 1-poly 6-metal standard CMOS process in a 1.28 × 1.19 mm2. The maximum efficiency is 93%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
