Datasheet Linear Technology LTC3355IUF#TRPBF

LTC3355
20V 1A Buck DC/DC with
Integrated SCAP Charger
and Backup Regulator
FEATURES DESCRIPTION VIN Voltage Range: 3V to 20V
nn V
OUT Voltage Range: 2.7V to 5V
nn 1A Current Mode Buck Main Regulator
nn 5A Boost Backup Regulator Powered from Single
Supercapacitor
nn Boost Regulator Operates Down to 0.5V for
Maximum Utilization of Supercapacitor Energy
nn Programmable Supercapacitor Charge Current to
1A with Overvoltage Protection
nn Charger Supports Single Cell CC/CV Battery Charging
nn Programmable V Current Limit
IN
nn Programmable Boost Current Limit
nn V Power Fail Indicator
IN
nn V
CAP Power Good Indicator
nn V …