LM4674 Datasheet (National Semiconductor) - Filterless 2.5W Stereo Class D Audio Power Amplifier

LM4674, Filterless 2.5W Stereo Class D Audio Power Amplifier

The LM4674 is a single supply, high efficiency, 2.5W/ channel, filterless switching audio amplifier.

A low noise PWM architecture eliminates the output filter, reducing external component count, board area consumption, system cost, and simplifying design.

The LM4674 is designed to meet the demands o

LM4674 Features

* high efficiency compared to conventional Class AB amplifiers. When driving and 8Ω speaker from a 3.6V supply, the device features 85% efficiency at PO = 500mW. Four gain options are pin selectable through the GAIN0 and GAIN1 pins. Output short circuit protection prevents the device from being damage