A proprietary low noise switching algorithm is claimed to optimise efficiency with capacitor/battery voltages that are above, below or equal to the system output voltage.
The LTC3110 can transition autonomously from charge to backup mode or switch modes based on an external command. Pin-selectable Burst Mode operation is said to reduce standby current and improve light-load efficiency, which combined with a 1µA shutdown current makes the LTC3110 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.
The LTC3110 is available in a thermally enhanced, low profile 24-lead TSSOP and 4 × 4mm QFN package and operates across a temperature range of -40 to 125°C.
