Datasheet Linear Technology LTC3110HFE#PBF

LTC3110
2A Bidirectional Buck-Boost
DC/DC Regulator and
Charger/Balancer
DESCRIPTION FEATURES
VCAP Operating Range: 0.1V to 5.5V
VSYS Operating Range: 1.71V to 5.25V
Automatic Switchover from Charge to Backup Mode
Programmable В±2% Accurate Charge Input Current
Limit from 125mA to 2A
n В±1% Backup Voltage Accuracy
n Automatic Backup Capacitor Balancing
n Fixed 1.2MHz Switching Frequency
n Burst ModeВ® Operation: 40ОјA Quiescent Current
n Built-In Programmable Multipurpose Comparator
with Open-Collector Output
n Open-Collector Outputs to Indicate Direction of
Operation and End of Charge
n Thermally Enhanced TSSOP-24 and 4mmВ Г—В 4mm
QFN-24 Packages n n n The LTCВ®3110 is a 2A bidirectional buck-boost DC/DC
regulator with capacitor charger and balancer. Its wide
0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V
system backup voltage ranges make it well suited to a …