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An adaptively biased low-dropout regulator (LDO) in standard CMOS process technology is presented. By designing the poles and zeros carefully and utilizing the adaptive biasing technique, this LDO provides high stability, good line regulation as well as fast transient response, even with zero ESR off-chip compensation capacitor.
This paper presents novel frequency compensation techniques for low-dropout (LDO) voltage regulator. An enhanced active feedback frequency compensation is employed to improve its frequency response. This LDO can provide high stability for loading current range up to 100 mA without loading capacitors. Moreover, the total compensation capacitors only require 7 pF for this technique. This allows us to...
Stability is the major obstacle for capacitor-less low- dropout regulator (LDO). By using Miller compensation, a low frequency dominant pole is internally generated, and two other non-dominant poles, which frequency are higher than unity gain frequency (UGF), can be configured by Damping-Factor-Control (DFC) block. With opposed zero cancellation, single pole system is formed before UGF and satisfied...
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