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LTC3335 Datasheet Nanopower Buck-boost DC/dc Converter

Manufacturer: Linear Technology (now Analog Devices)

General Description

The LTC®3335 is a high efficiency, low quiescent current (680nA) buck-boost DC/DC converter with an integrated precision coulomb counter which monitors accumulated battery discharge in long life battery powered applications.

The buck-boost can operate down to 1.8V on its input and provides eight pin-selectable output voltages with up to 50mA of output current.

The coulomb counter stores the accumulated battery discharge in an internal register accessible via an I2C interface.

Key Features

  • n 680nA Input Quiescent Current (Output in Regulation at No Load) n 1.8V to 5.5V Input Operating Range n Selectable Output Voltages of 1.8V, 2.5V, 2.8V, 3V, 3.3V, 3.6V, 4.5V, 5V n Integrated Coulomb Counter Measures Accumulated Battery Discharge n ±5% Battery Discharge Measurement Accuracy n Programmable Peak Input Current of 5mA, 10mA, 15mA, 25mA, 50mA, 100mA, 150mA, 250mA n Up to 50mA of Output Current n Up to 90% Efficiency n Programmable Coulomb Counter Prescaler for Wide Range of Batt.

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LTC3335 Distributor