FEATURES
Input voltage range: 2.7 V to 5.5 V 600 mA maximum load current 95% efficiency Low duty cycle operation Only 3 tiny external ceramic components 3 MHz typical operating frequency Fixed output voltage of 1.2 V or 1.375 V Adjustable output voltage up to 3.3 V 0.01 µA shutdown supply current Automatic power save mode Internal synchronous rectifier Internal soft start Internal compensation Enable/shutdown logic input Undervoltage lockout Current limit protection Thermal shutdown Small 8-lead, 3 mm × 3 mm LFCSP APPLICATIONS
USB powered devices WLAN and gateways Point of loads Processor core power from 5 V Digital cameras PDAs and palmtop computers Portable media players, GPS GENERAL DESCRIPTION
At medium-to-high load currents, it uses a current mode, pseudofixed frequency pulsewidth modulation to extend battery life. To ensure the longest battery life in portable applications, the ADP2102 has a power save mode (PSM) that reduces the switching frequency under light load conditions to significantly reduce quiescent current.
Analog Devices
