| Citation: |
Han Peng, Wang Zhigong, Xu Yong, Li Wei. A Capacitor-Free CMOS Low-Dropout Regulator for System-on-Chip Application[J]. Journal of Semiconductors, 2008, 29(8): 1507-1510.
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Han P, Wang Z G, Xu Y, Li W. A Capacitor-Free CMOS Low-Dropout Regulator for System-on-Chip Application[J]. J. Semicond., 2008, 29(8): 1507.
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A Capacitor-Free CMOS Low-Dropout Regulator for System-on-Chip Application
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Abstract
A stable CMOS low drop-out regulator without an off-chip capacitor for system-on-chip application is presented.By using an on-chip pole splitting technique and an on-chip pole-zero canceling technique,high stability is achieved without an off-chip capacitor.The chip was implemented in CSMC's 0.5μm CMOS technology and the die area is 600μm×480μm.The error of the output voltage due to line variation is less than ±0.21%,and the quiescent current is 39.8μA.The power supply rejection ratio at 100kHz is -33.9dB,and the output noise spectral densities at 100Hz and 100kHz are 1.65 and 0.89μV/Hz,respectively. -
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