600 mA/1000 mA, 2.5 MHz Buck-Boost
DC-to-DC Converters

FEATURES
1 mm height profile
Compact PCB footprint
Seamless transition between modes
38 uA typical quiescent current
2.5 MHz operation enables 1.5 uH inductor
Input voltage: 2.3 V to 5.5 V
Fixed output voltage: 2.8 V to 5.0 V
Adjustable model output voltage range: 2.8 V to 5.5 V
600 m A (ADP2503) and 1000 m A (ADP2504) output options
Boost converter configuration with load disconnect
SYNC pin with three different modes
Power save mode (PSM) for improved light load efficiency
Forced fixed frequency operation mode
Synchronization with external clock Internal compensation Soft start
Enable/shutdown logic input Overtemperature protection Short-circuit protection Undervoltage lockout protection Small 10-lead 3 mm x 3 mm LFCSP (QFN) package