Design of DC-DC Boost Converter in CMOS 0.18μm Technology

M. Rama Devi, R. Sunil Kumar, M. Madhava Kumar
2016 International Journal of Computer Engineering in Research Trends  
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
more » ... 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.
doi:10.22362/ijcert/2016/v3/i10/48905 fatcat:fkwtgzhkujhkfd6i73cuq3amwy