ADP172

300 mA, Low Quiescent Current, CMOS Linear Regulator ADP172 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: 50 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 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 Tiny 4-ball, 0.5 mm pitch WLCSP package www.DataSheet4U.com TYPICAL APPLICATION CIRCUITS VIN = 2.3V C1 ON OFF EN VIN VOUT U1 GND VOUT = 1.8V C2 06111-001 Figure 1. ADP172 with Fixed Output Voltage, 1.8 V APPLICATIONS Mobile phones Digital camera and audio devices Portable and battery-powered equipment DSP/FPGA/microprocessor supplies Post dc-to-dc regulation GENERAL DESCRIPTION The ADP172 is a low voltage input, low quiescent current, lowdropout (LDO) linear regulator that operates from 1.6 V to 3.6 V and provides up to 300 mA of output current. The low 50 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 no load makes the ADP172 ideal for battery-operated portable equipment. The ADP172 is capable of 31 fixed-output voltage options, ranging from 0....