FEATURES
Peak efficiency: 95% 3 MHz fixed frequency operation Typical quiescent current: 18 μA Maximum load current: 600 mA Input voltage: 2.3 V to 5.5 V Uses tiny multilayer inductors and capacitors Current mode architecture for fast load and line transient response 100% duty cycle low dropout mode Internal synchronous rectifier Internal compensation Internal soft start Current overload protection Thermal shutdown protection Shutdown supply current: 0.2 μA Available in 5-ball WLCSP 5-lead TSOT Supported by ADIsimPower™ design tool APPLICATIONS
PDAs and palmtop computers Wireless handsets Digital audio, portable media players Digital cameras, GPS navigation units Compact, 600 mA, 3 MHz, Step-Down DC-to-DC Converter ADP2108 GENERAL DESCRIPTION
To ensure the longest battery life in portable applications, the ADP2108 has a power save mode that reduces the switching frequency under light load conditions. The ADP2108 runs on input voltages of 2.3 V to 5.5 V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB, and other standard power sources.
Analog Devices
