Title :
Design of a monolithic high frequency fast transient buck for portable application
Author :
Deng, Haifei ; Huang, Alex Q. ; Ma, Yan
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
The earth is mobile. There is a huge market for mobile power management ICs today and in the future. Fast transient response, efficient performance, small profile and low cost are the most desired features for mobile power management IC. In this paper, a 2 MHz high efficiency, wide input range monolithic buck DC-DC converter ASIC is designed based on advanced trench BCD process. Some important design issues such as compensator design for wide range of input, output voltage and load current, linear-non-linear control for fast transient response, efficiency optimisation, device optimisation, noise separation and driver design are discussed. The experiment test results show that the ASIC works well.
Keywords :
DC-DC power convertors; application specific integrated circuits; driver circuits; integrated circuit design; optimisation; transient response; 2 MHz; ASIC; compensator design; device optimisation; driver design; linear-nonlinear control; load current; mobile power management IC; monolithic buck DC-DC converter; monolithic high frequency fast transient buck; noise separation; portable application; transient response; Application specific integrated circuits; Costs; DC-DC power converters; Design optimization; Earth; Energy management; Frequency; Monolithic integrated circuits; Process design; Transient response;
Conference_Titel :
Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual
Print_ISBN :
0-7803-8399-0
DOI :
10.1109/PESC.2004.1354787
