MAX9730 Class G Audio Power Amplifier Free Technical Library News

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MAX9730 Class G Audio Power Amplifier

25.07.2007

Maxim Integrated Products has introduced a new MAX34 class G mono audio power amplifier (UM9730) with a single supply voltage and an output power of 2,4 watts.

MAX9730 is made according to class G architecture and integrates a capacitive supply voltage converter, which allows it to develop 2 times higher power when powered by a Li-Ion battery compared to UMZCH class AB or D. Capacitive converter when powered by a voltage of 2,7... 5,5 V provides a current of up to 500 mA and, when supplied with a voltage of 3,3 V, it is guaranteed to develop a power of 2,4 W at an 8-ohm load.

Using the MAX9730 can significantly reduce the size and cost of the overall solution by eliminating the boost converter and bulky inductance typically required to achieve the same performance.

This makes the MAX9730 especially suitable for cell phones, laptops and other portable devices with limited board sizes. The MAX9730 is rated for operation within the -40 to 85°C temperature range and is available in subminiature lead-free 20-lead UCSPTM (2x2,5mm) and 28-lead TQFN (4x4mm) packages.

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