Title :
25 mA LDO with -63 dB PSRR at 30 MHz for WiMAX
Author :
Yeung, Sai Ho ; GUO, Jun ; Leung, Ka Nang
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, China
Abstract :
A low-dropout regulator (LDO) with high power-supply rejection ratio (PSRR) is presented. The high PSRR at high frequency is enabled by a signal-nulling technique achieved by a wide-bandwidth feedforward path. Experimental results verify the outstanding performance.
Keywords :
WiMax; WiMAX; current 25 mA; frequency 30 MHz; high power-supply rejection ratio; low-dropout regulator; signal-nulling technique; wide-bandwidth feedforward path;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.1547
