PT5301

PT5301 2 Watts Audio Power Amplifier GENERAL DESCRIPTION The PT5301 is an audio power amplifier mainly designed for applications in mobile phones and other portable communication device applications. It is capable of delivering 1.25 watts of continuous average power to an 8Ω load and 2 watts of continuous average power to a 4Ω load with less than 1% distortion (THD+N) from a 5V power supply. The PT5301 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement. The PT5301 features a low-power shutdown mode and improved pop & click circuitry that attenuates noise which would otherwise occur during turn on and turn off transactions. The PT5301 is delivered with miniature MSOP-8, DFN-8 and SMD-9 packages (Pd free). FEATURES z Low Distortion 0.50W @ VDD=5.0V, RL=8Ω THD+N = 0.03% 0.25W @ VDD=3.0V, RL=8Ω THD+N = 0.04% 0.15W @ VDD=2.6V, RL=8Ω THD+N = 0.05% z Output Power @ 1% THD+N 1.25W @ VDD=5.0V, RL=8Ω 2.0W @ VDD=5.0V, RL=4Ω 0.425W @ VDD=3.0V, RL=8Ω 0.60W @ VDD=3.0V, RL=4Ω 0.30W @ VDD=2.6V, RL=8Ω 0.40W @ VDD=2.6V, RL=4Ω APPLICATION z z z Mobil Phones PDAs Portable electronic devices z Ultra low shutdown current z Improved pop & click noise eliminating function z No need for output coupling or bootstrap capacitors z 2.2 -5.5V operation supply voltage z Thermal protection z External gain configuration capability z Pd free MSOP-8, ...