ft4266 General Description The ft4266 is a 1.3W bridge-connected dual audio amplifier. When supplied with 5V voltage, the ft4266 can deliver 1.3W to a 8Ω load with the THD+N rate lower than 1.0%. The dual audio power amplifier design of ft4266 provides high quality dual-channel output while requiring few external components and consuming very little PCB space. The ft4266’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 ft4266. 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. Packaging: WCSP-9 (1.46mm x 1.46mm) Specifications ·PO @ 1% THD+N, VDD = 5V - RL = 8Ω, PO = 1.3W (TYP) ·Shutdown current: 0.04μA ·Supply voltage range: 2.7V to 5.5V ·PSRR @ 217Hz: 70dB (TYP) DataSheet