LM3243TMX/NOPB Texas Instruments - Yeehing Electronics

2.7MHz, 2.5A Step-Down DC-DC Converter with Analog Bypass Mode for 2G/3G/4G PAs

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Specifications

For more information, please refer to datasheet

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The LM3243 is a DC-DC converter optimized for powering multi-mode 2G, 3G, and 4G RF power amplifiers (PAs) from a single Lithium-Ion cell. The LM3243 steps down an input voltage from 2.7 V to 5.5 V to a dynamically adjustable output voltage of 0.4 V to 3.6 V. The output voltage is set through a VCON analog input that adjusts the output voltage to ensure efficient operation at all power levels of the RF PA.