A CMOS DC-DC boost converter with fastest settling time and less quiescent current with a feedback control is implemented. An extra path is introduced because of an error amplifier (OTA) which has an effective control for fast response. Efficient compensation with soft-start is used to make the quiescent current low. An on-chip current sensing circuit is introduced with less number of I/O pins for current mode control. In this project, the DC-DC boost converter is designed in Cadence virtuoso 0.18µm technology with a 5V supply. With a wide range of loads, it provides 25V at the output, 50mA load current with 90% efficiency. The circuit is operated at 500 KHz clock frequency with output ripple voltage of 20mV by using 4.7µF off-chip capacitor and 75µH off-chip inductor.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.