Analog Devices LTC3106

Description

The LTC®3106 is a highly integrated, ultralow voltage buckboostDC/DC converter with automatic PowerPath managementoptimized for multisource, low power systems.At no load, the LTC3106 draws only 1.6μA while creatingan output voltage up to 5V from either input source.If the primary power source is unavailable, the LTC3106seamlessly switches to the backup power source. TheLTC3106 is compatible with either rechargeable or primarycell batteries and can trickle charge a backup batterywhenever there is an energy surplus available. Optionalmaximum power point control ensures power transfer isoptimized between power source and load. The output voltageand backup voltage, VSTORE, are programmed digitally,reducing the required number of external components.Zero power Shelf Mode ensures that the backup batterywill remain charged if left connected to the LTC3106 foran extended time.Additional features include an accurate turn-on voltage, apower good indicator for VOUT, a user selectable 100mApeak current limit setting for lower power applications,thermal shutdown as well as user selectable backup powerand output voltages.

Features

Dual Input Buck-Boost with Integrated PowerPath™ ManagerUltralow Start-Up Voltages: 850mV Start with No Backup Source, 300mV with a Backup SourceCompatible with Primary or Rechargeable Backup BatteriesDigitally Selectable VOUT and VSTOREMaximum Power Point ControlUltralow Quiescent Current: 1.6μARegulated Output with VIN or VSTORE Above, Below or Equal to the OutputOptional Backup Battery Trickle ChargerShelf Mode Disconnect Function to Preserve Battery Shelf LifeBurst Mode® OperationAccurate RUN Pin ThresholdPower Good Output Voltage IndicatorSelectable Peak Current Limit: 90mA/650mAAvailable in Thermally Enhanced 3mm × 4mm 16-Pin QFN and 20-Pin TSSOP Packages

Typical applications

• Home or Office Building Automation
• Wireless Sensor Networks
• Remote Sensors
• Energy Harvesting

More information

• Datasheet
• IC product information