%0 Journal Article
	%A Lv Xiaopeng and  Bian Qiang and  Yue Suge
	%D 2012
	%J International Journal of Electronics and Communication Engineering
	%B World Academy of Science, Engineering and Technology
	%I International Science Index 63, 2012
	%T An On-chip LDO Voltage Regulator with Improved Current Buffer Compensation
	%U https://publications.waset.org/pdf/3067
	%V 63
	%X A fully on-chip low drop-out (LDO) voltage regulator with 100pF output load capacitor is presented. A novel frequency compensation scheme using current buffer is adopted to realize single dominant pole within the unit gain frequency of the regulation loop, the phase margin (PM) is at least 50 degree under the full range of the load current, and the power supply rejection (PSR) character is improved compared with conventional Miller compensation. Besides, the differentiator provides a high speed path during the load current transient. Implemented in 0.18μm CMOS technology, the LDO voltage regulator provides 100mA load current with a stable 1.8V output voltage consuming 80μA quiescent current.

	%P 350 - 353