Texas Instruments LM3290 RF Power Envelope Modulator for Power Amplifiers LM3290TMX/NOPB

The LM3290TMX/NOPB is an RF power envelope modulator designed for use with power amplifiers, specifically optimized for Average Power Tracking (APT) and Envelope Tracking (ET) operations. It features a wide output voltage range from 0.6 V to 4.5 V, with a boost input voltage range of 2.5 V to 5 V. The device operates with high efficiency, achieving up to 90% in boost mode and 95% in buck mode, thanks to its internal synchronous rectification. The LM3290 supports dynamic supply voltage adjustments to maximize power amplifier efficiency, making it suitable for applications in 3G and LTE systems with signal bandwidths up to 20 MHz. It includes a MIPI RFFE 1.1-compatible digital control interface, allowing for seamless integration with other components in RF systems. The device also features automatic control for low power consumption during light load conditions, enhancing battery life. With a compact DSBGA package measuring 2.432 mm x 2.808 mm, the LM3290 is designed for space-constrained applications. Its ability to operate in both APT and ET modes provides flexibility for various RF power amplifier designs.