ft4288 The ft4288 is a 2.1W bridge-connected dual audio amplifier. When supplied with 5V voltage, the ft4288 can deliver 2.1W to a 4Ω load or 2.4W to 3Ω load with the THD+N rate lower than 1.0%. The dual audio power amplifier design of ft4288 provides high quality dual-channel output while requiring few external components and consuming very little PCB space. The ft4288’s power-saving feature is another plus tailored for handheld device. When the power-saving mechanism is activated, only 0.04μA current is running on the ft4288. Other features such as thermal shutdown protection and “click and pops” reduction during power-up ensure the safety and reliability in real applications. Features ·Micro power shutdown mode ·Thermal shutdown protection ·Improved “click and pop” suppression circuitry ·Space-saving QFN package ·Package: QFN-16 (4mm x 4mm) Product Brief        DataSheet        Application Note