PT5301-2 Watts Audio Power Amplifier  PDF文档下载
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+N) from a 5V power supply. The PT5301 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phones and other low voltage applications where minimal power consumption is a primary requirement.
The PT5301 features a low-power shutdown mode and pop & click reducing circuitry that attenuates noise which would otherwise occur during on and off transitions. The PT5301 is available in miniature MSOP-8, QFN-8, and SMD-9 packages.
FEATURES
¨ Ultra low shutdown current
¨ Improved pop & click noise eliminating function
¨ No need for output coupling or bootstrap capacitors
¨ 2.2 -5.5V operation supply voltage
¨ Thermal protection
¨ External gain configuration capability
¨ MSOP-8,QFN-8 and SMD-9 packages
¨ Unity-gain stable
APPLICATIONS
¨ Mobil phones
¨ PDAs
¨ Portable electronic devices
TYPICAL APPLICATIONS
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