Its 1.8 to 5.5V input range and eight user-selectable outputs between 1.8 and 5V can provide a regulated output supply with input voltage above, below or equal to the output. In addition, the device’s integrated coulomb counter provides monitoring of accumulated battery discharge in long-life primary cell applications that have flat battery discharge curves. Typical applications include remote sensors and monitors, and Linear’s Dust Networks SmartMesh wireless sensor network systems.
The LTC3335 is claimed to deliver efficiency of up to 90%. Other features include a programmable discharge alarm threshold and an I²C interface for accessing coulomb count and device programming. The LTC3335is available with an operating temperature range from -40 to 125°C in a thermally enhanced, 20-lead 3 x 4mm QFN package.
