GENERAL DESCRIPTION
The ADP170/ADP171 are low voltage input, low quiescent current, low-dropout (LDO) linear regulators that operate from 1.6 V to 3.6 V and provide up to 300 mA of output current. The low 66 mV dropout voltage at 300 mA load improves efficiency and allows operation over a wide input voltage range. The low 23 µA of quiescent current at a 0 mA load makes the ADP170/ADP171 ideal for battery-operated portable equipment.

FEATURES
    Maximum output current: 300 mA
    Input voltage range: 1.6 V to 3.6 V
    Low quiescent current IGND = 23 µA with 0 mA load IGND = 170 µA with 300 mA load
    Low shutdown current: <1 µA
    Low dropout voltage: 66 mV at 300 mA load
    Output voltage accuracy: ±1%
    Up to 31 fixed-output voltage options available from 0.8 V to 3.0 V
    Adjustable-output voltage range 0.8 V to 3.0 V (ADP171)
    Accuracy over line, load, and temperature: ±3%
    Stable with small 1 µF ceramic output capacitor
    PSRR performance of 70 dB at 10 kHz and 73 dB at 1 kHz
    Low noise: 30 µV rms at VOUT = 0.8 V
    Current limit and thermal overload protection
    Logic-controlled enable
    Compact 5-lead TSOT package

APPLICATIONS
    Mobile phones
    Digital camera and audio devices
    Portable and battery-powered equipment
    DSP/FPGA/microprocessor supplies
    Post dc-dc regulation