Analog Devices Inc. ADP222ACPZ-1528-R7

Description
The ADP222/ADP223/ADP224/ADP225 are dual output voltage regulators with high PSRR, low noise, low quiescent current, and low dropout voltage. They are suitable for wireless applications with demanding performance and board space requirements. The ADP222/ADP224 have fixed output voltages from 0.8V to 3.3V, while the ADP223/ADP225 have adjustable output voltages from 0.5V to 5.0V. The ADP224 and ADP225 have a quick output discharge (QOD) feature.

Features
Input voltage range: 2.5V to 5.5V
Small, 8-lead, 2mm x 2mm LFCSP package
Initial accuracy: ±1%
High PSRR: 70 dB at 10 kHz, 60 dB at 100 kHz, 40 dB at 1 MHz
Low noise: 27 μV rms at Vout = 1.2V, 50 μV rms at Vout = 2.8V
Excellent transient response
Low dropout voltage: 170 mV at 300 mA load
65 μA typical ground current at no load, both LDOs enabled
Fixed output voltage from 0.8V to 3.3V (ADP222/ADP224)
Adjustable output voltage range from 0.5V to 5.0V (ADP223/ADP225)
Quick output discharge (QOD) - ADP224/ADP225
Overcurrent and thermal protection

Applications
Portable and battery-powered equipment
Portable medical devices
Post dc-to-dc regulation
Point of sale terminals
Credit card readers
Automatic meter readers
Wireless network equipment