Not Recommended For New Designs LM3291
www.ti.com SNVSA12 – SEPTEMBER 2013 LM3291 Product Brief
FEATURES DESCRIPTION The LM3291 is a high-speed linear amplifier that, with
its companion IC LM3290, constitutes an RF
Envelope Modulator (EM) for supplying 3G/4G Power
Amplifiers (PA) in envelope tracking systems. The
amplifier provides extremely low output impedance
and low output noise over a wide bandwidth. 1 23 Highly Programmable High-Current Linear
Amplifier
> 75 MHz Typical Small Signal Bandwidth
Extremely Low Output Impedance
High Linearity
Differential Analog Input Compatible with
eTrak 1.0 Standard
Low Output Noise
When paired with the LM3290 provides a
complete Envelope Modulator solution for
3G/4G Envelope Tracking Power Amplifiers.
Automatically controlled through LM3290 in an
envelope modulation solution using MIPIВ®
RFFE 1.1-compatible interface. APPLICATIONS 3G/LTE Handsets
3G//LTE Tablets
3G/LTE Data Cards and Wireless Modems …
