ft2830
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 outpu...