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LTC3441 Datasheet High Current Micropower Synchronous Buck-Boost DC/DC Converter

Manufacturer: Linear Technology (now Analog Devices)

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General Description

The LTC®3441 is a high efficiency, fixed frequency, buckboost DC/DC converter that operates efficiently from input voltages above, below or equal to the output voltage.

The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium ion or multicell applications where the output voltage is within the battery voltage range.

The device includes two 0.10Ω N-channel MOSFET switches and two 0.11Ω P-channel switches.

Key Features

  • nn Regulated Output with Input Above, Below or Equal to the Output nn Single Inductor, No Schottky Diodes nn High Efficiency: Up to 95% nn 25µA Quiescent Current in Burst Mode® Operation nn Up to 1.2A Continuous Output Current from a Single Lithium-Ion nn True Output Disconnect in Shutdown nn 2.4V to 5.5V Input Range nn 2.4V to 5.25V Output Range nn 1MHz Fixed Frequency Operation nn Synchronizable Oscillator nn Selectable Burst Mode or Fixed Frequency Operation nn.

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