ADP221

Data Sheet FEATURES Input voltage range: 2.5 V to 5.5 V Dual independent 200 mA low dropout voltage regulators Miniature 6-ball, 1.0 mm × 1.5 mm WLCSP and 6-ball bumped bare die Initial accuracy: ±1% Stable with 1 µF ceramic output capacitors No noise bypass capacitor required Two independent logic controlled enables Overcurrent and thermal protection Active output pull-down (ADP221) Key specifications High PSRR 76 dB PSRR up to 1 kHz 70 dB PSRR at 10 kHz 60 dB PSRR at 100 kHz 40 dB PSRR at 1 MHz Low output noise 27 µV rms typical output noise at VOUT = 1.2 V 50 µV rms typical output noise at VOUT = 2.8 V Excellent transient response Low dropout voltage: 150 mV @ 200 mA load 60 µA typical ground current at no load, both LDOs enabled 100 µs fast turn-on circuit Guaranteed 200 mA output current per regulator −40°C to +125°C junction temperature APPLICATIONS Mobile phones Digital cameras and audio devices Portable and battery-powered equipment Portable medical devices Post dc-to-dc regulation GENERAL DESCRIPTION The 200 mA dual output ADP220/ADP221 combine high PSRR, low noise, low quiescent current, and low dropout voltage in a voltage regulator ideally suited for wireless applications with demanding performance and board space requirements. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP220/ADP221 extend the battery life of portable devices. The ADP220/ADP221 maintain power supply rejection greater than 60 dB for frequencies as high as 1...