View at1201 datasheet:

AT1201 Preliminary Product Information 2.5/2.7/2.8/3.0/3.3/4.5/5.0V 150mA LDO Features General Description • Output voltage 2.5/2.7/2.8/3.0/3.3/4.5/5.0V The AT1201 is a low-noise, low-dropout, low- • Output current 150mA quiescent-current linear regulator designed for • Output noise voltage 35?Vrmstyp. battery-powered applications. The output voltage precision is within ± 2?and output currents of up • No-load input current 90?A typ. to 150mA;the input/output voltage difference at • I/O voltage difference 0.1V typ.(Io=50mA) • Ripple rejection ratio 70dB typ. 50mA is only 0.1V. • Bulit-in On/Off control Applications • Cordless phones • Portable phones, PHS • Other battery operating system Block Diagram Aimtron reserves the right without notice to change this circuitry an