Conference Proceeding

Fast Transient DC-DC Converter with On-Chip Compensated Error Amplifier

Graduate Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei
10/2006; DOI:10.1109/ESSCIR.2006.307596 pp.324 - 327 In proceeding of: Solid-State Circuits Conference, 2006. ESSCIRC 2006. Proceedings of the 32nd European
Source: IEEE Xplore

ABSTRACT A novel fast transient DC-DC converter with on-chip compensated error amplifier is presented in this paper. The error amplifier uses on-chip current-mode Miller capacitor to replace a large off-chip capacitor. Only three transistors and one voltage follower are used to implement this novel architecture. Not only on-chip compensated error amplifier is implemented without off-chip components and I/O pins, but also it can have fast transient response. Furthermore, we accurately decrease the transient response time without suffering from the oscillation issue. Experimental results demonstrate the stability and the fast transient response of the DC-DC converters

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Keywords

DC-DC converters
 
error amplifier
 
fast transient response
 
I/O pins
 
large off-chip capacitor
 
novel fast transient DC-DC converter
 
on-chip compensated error amplifier
 
on-chip current-mode Miller capacitor
 
oscillation issue
 
transient response time