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