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  • A Synchronous Boost Regulator with PWM/PFM Mode Operation

    Liou, Wan-Rone   Chen, Ping-Hsing   Tzeng, Jiun-Chang  

    This paper presents a synchronous boost regulator with PWM/PFM mode of operation. It uses synchronous rectification architecture to reduce the conduction loss and improve the efficiency. Furthermore, this paper features a two-level soft-start circuit which prevents the presence of large current generation during system start-up. The simulation results show an efficiency of more than 0 with an input voltage range of 2. .2 and with a load current of mA to 200mA. This regulator is suitable for ion-battery supply application. It uses TSMC s 0. um 2P M CMOS process.
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