GENERAL DESCRIPTION
The ADP120 is a low quiescent current, low dropout, linear regulator that operates from 2.3 V to 5.5 V and provides up to 100 mA of output current. The low 60 mV dropout voltage at 100 mA load improves efficiency and allows operation over a wide input voltage range. The low 22 μA of quiescent current at full load makes the ADP120 ideal for battery-operated portable equipment.

FEATURES
    Input voltage range: 2.3 V to 5.5 V
    Output voltage range: 1.2 V to 3.3 V
    Output current: 100 mA
    Low quiescent current IGND = 11 μA with zero load IGND = 22 μA with 100 mA load
    Low shutdown current: <1 μA
    Low dropout voltage 60 mV @ 100 mA load
    High PSRR 73 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
    Initial accuracy: ±1%
    Stable with 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
    Mobile phones
    Digital camera and audio devices
    Portable and battery-powered equipment
    Post regulation