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The LTC3403 is a high efficiency, 1.5 MHz, synchronous buck regulator with an integrated bypass MOSFET that can deliver up to 600 mA of continuous output current from an 8-lead DFN package. The LTC3403 operates from an input voltage range of 2.5 V to 5 V making it ideal for single cell Li-Ion cellular applications. The output can be programmed from 0.3 V to 3.5 V to optimize the efficiency of the latest generation of CDMA and WCDMA power amplifiers.

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