Datasheet Summary
4.5W Dual-PumpTM Class-G Audio Power Amplifier
GENERAL DESCRIPTION
The ft2830 is a highly efficient 4.5W Class-G audio power amplifier with automatic level control (ALC) for use in battery-powered portable devices. It integrates a filterless Class-D audio power amplifier with a Class-G charge pump regulator based upon proprietary Dual-PumpTM topology. It operates from 3.2V to 4.6V supply. When operating with a 4.2V supply voltage, the ft2830 can deliver into a 4Ω load a maximum output power up to 4.5W with 10% THD+N, or a constant output power at 3.5W with 0.5% THD+N. Its high efficiency, up to 83%, helps extend battery life.
In ft2830, the power supply rail for the amplifier’s...