Features

• Operates from VCC = 2.4 V to 5.5 V

• Standby mode active low

• Output power: 1.4 W at 5 V or 0.5 W at 3.0 V

into 8 Ω with 1% THD+N max.

• Output power: 2.3 W at 5 V or 0.75 W at 3.0 V

into 4 Ω with 1% THD+N max.

• Two fixed gain selects: 6 dB or 12 dB

• Low current consumption

• Efficiency: 86% typ.

• Signal-to-noise ratio: 90 dB typ.

• PSRR: 68 dB typical at 217 Hz with 6 dB gain

• PWM base frequency: 280 kHz

• Low pop and click noise

• Thermal shutdown protection

• Output short-circuit protection

• Flip-chip lead-free 9-bump package with back

coating in option

Applications

• Cellular phones

• PDAs

• Notebook PCs