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LTC3110 Datasheet 2a Bidirectional Buck-boost DC/dc Regulator

Manufacturer: Linear Technology (now Analog Devices)

General Description

The LTC®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 wide variety of backup applications using supercapacitors or batteries.

A proprietary low noise switching algorithm optimizes efficiency with capacitor/battery voltages that are above, below or equal to the system output voltage.

Key Features

  • n VCAP Operating Range: 0.1V to 5.5V n VSYS Operating Range: 1.71V to 5.25V n Automatic Switchover from Charge to Backup Mode n Programmable ±2% Accurate Charge Input Current Limit from 125mA to 2A n ±1% Backup Voltage Accuracy n Automatic Backup Capacitor Balancing n Fixed 1.2MHz Switching Frequency n Burst Mode® Operation: 40μA Quiescent Current n Built-In Programmable Multipurpose Comparator with Open-Collector Output n Open-Collector Outputs to Indicate Direction of Operation and En.

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