ADP121 - Analog Devices

ADP121 CMOS Linear Regulator

The ADP121 is a quiescent current, low dropout, linear regulator that operates from 2.3 V to 5.5 V and provides up to 150 mA of output current. The low 135 mV dropout voltage at 150 mA load improves efficiency and allows operation.

Features

Input voltage range: 2.3 V to 5.5 V Output voltage range: 1.2 V to 3.3 V Output current: 150 mA Low quiescent current IGND = 11 μA with 0 μA load IGND = 30 μA with 150 mA load Low shutdown current: <1 μA Low dropout voltage 90 mV @ 150 mA load High PSRR 70 dB @ 1 kHz at VOUT = 1.2 V 70 dB @ 10 kHz at VOUT = 1.2 V Low noise: 40 μV rms at VOUT = 1.2 V No noise bypass capacitor required Output voltage accuracy: ±1% Stable with a small 1 μF ceramic output capacitor Current limit and thermal overload protection Logic controlled enable 5-lead TSOT package 4-ball 0.4 mm pitch WLCSP APPLICATIONS Mobil.