LTC3110EUF#TRPBF

LTC3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. This device can autonomously transition from charge to backup mode or switch modes based on an external command. Pin-selectable Burst Mode operation reduces standby current and improves light-load efficiency, which combined with a 1μA shutdown current make the device ideally suited for backup applications. Additional features include voltage supervisors for direction control and end of charge, and a general purpose comparator with open-collector output for interfacing with a µC. It is widely used in application such as supercapacitor backup converter and charger, battery backup converter and charger, servers, RAID systems, RF systems with battery/capacitor backup etc.

• VCAP operating range is 0.1V to 5.5V
• VSYS operating range is 1.71V to 5.25V
• Automatic switchover from charge to backup mode
• Programmable ±2% accurate charge input current limit from 125mA to 2A
• ±1% backup voltage accuracy, automatic backup capacitor balancing
• Built-in programmable multipurpose comparator with open-collector output
• Fixed 1.2MHz switching frequency
• Quiescent current (burst mode operation) is 40µA typical
• Operating temperature is -40°C to 125°C
• Package style is 24-lead plastic QFN

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