ADP170

Data Sheet 300 mA, Low Quiescent Current, CMOS Linear Regulators ADP170/ADP171 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 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. The ADP170 is capable of 31 fixed-output voltage options, ranging from 0.8 V to 3.0 V. ADP171 is an adjustable version, which allows output voltages that range fr...