LM3243 Datasheet | Texas Instruments

Product Folder Sample & Buy Technical Documents Tools & Software Support & munity SNVS782C - OCTOBER 2010 - REVISED AUGUST 2015 LM3243 High-Current Step-Down Converter for 2G, 3G, and 4G RF Power Amplifiers 1 Features - 1 Input Voltage Range: 2.7 V to 5.5 V - High-Efficiency PFM and PWM Modes With Internal Synchronous Rectification - Analog Bypass Function with Low Dropout Resistance (45 mΩ Typical) - Dynamically Adjustable Output Voltage: 0.4 V to 3.6 V (Typical) in PFM and PWM Modes - Maximum Load Current: 2.5 A in PWM Mode - PWM Switching Frequency: 2.7 MHz (Average) - Modulated Switching Frequency to Aid Rx Band pliance - Operates From a Single Li-ion Cell (2.7 V to...