GENERAL DESCRIPTION
The ft2810D is a highly efficient 3.2W Class-G audio power amplifier for use in battery-based portable device applications. 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. With a 3.6V supply voltage, the ft2810D is capable of delivering into 4Ω load with maximum output power of 3.2W at 10% THD+N in Non-ALC mode, or constant output power of 2.8W at 0.3% THD+N in ALC mode. Its high efficiency, up to 85%, helps extend battery life.

FEATURES
● Proprietary Dual-PumpTM topology
● Filterless Class-D audio amplifier integrated with an
   adaptive Class-G charge pump regulator
● Automatic level control to eliminate output clipping
● Maximum output power (Non-ALC Mode)
    3.2W (VDD=3.6V, THD+N=10%, RL=4Ω+33µF)
    2.2W (VDD=3.6V, THD+N=10%, RL=8Ω+33µF)
● Constant output power (ALC Mode)
    2.8W (VDD=3.6V, THD+N=0.3%, RL=4Ω+33µF)
    1.8W (VDD=3.6V, THD+N=0.3%, RL=8Ω+33µF)
● High power efficiency up to 85% (RL=8Ω+33µF)
● Low THD+N: 0.05%
   (VDD=3.6V, f=1kHz, RL=8Ω+33µF, Po=1W)
● Low quiescent current: 2.6mA @ VDD=3.6V
● High PSRR: 76dB @ 217Hz with RL=8Ω+33µF
● Two gain settings: 28/24dB
● One-wire pulse control for the selection of operating
   mode and voltage gain
● Auto-recovering short-circuit protection
● Available in QFN3x3-20L package

APPLICATIONS
● Blue-Tooth Speakers
● Mobile Phones
● Tablets
● Portable Multimedia Devices