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Linear Technology Releases High-Efficiency Buck-Boost Converter with Coulomb Counter
Suitable for Low Power Battery Applications with Selectable Outputs from 1.8V to 5V
Linear Technology released the new LTC3335, a nanopower high efficiency synchronous buck-boost
converter with an onboard precision coulomb counter. It delivers up to 50mA of continuous
output current. With only 680nA of quiescent current and programmable peak input currents from 5mA up to 250mA,
the device is ideal for a wide variety of low power battery applications. Its 1.8V to 5.5V input range and eight user-selectable
outputs between 1.8V and 5V can provide a regulated output supply with input voltage above, below or
equal to the output. In addition, the device's integrated precision coulomb counter (±5% battery discharge
measurement accuracy) provides accurate monitoring of accumulated battery discharge in long-life primary cell
applications that have extremely flat battery discharge curves. Typical applications include remote sensors and
monitors, and Linear Technology's Dust Networks® SmartMesh® wireless sensor network systems.
Key Features of the LTC3335
The company's Web site address is www.linear.com
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