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LM48510 Boosted Class D Audio Power Amplifier
November 2006
LM48510 Boosted Class D Audio Power Amplifier
General Description
The LM48510 integrates a boost converter with a high efficiency mono, Class D audio power amplifier to provide 1.
2W continuous power into an 8Ω speaker when operating on a 3.
3V power supply with boost
voltage (PV1) of 5.
0V.
When operating on a 3.
3V power supply, the LM48510 is capable of driving a 4Ω speaker load at a continuous average output of 1.
7W with less than 1% THD+N.
The Class D amplifier is a low noise, filterless PWM architecture that eliminates the output filter, reducing external component count, board area consumption, system cost,...