The TS4871IST from STMicroelectronics is an efficient audio power amplifier primarily designed for demanding applications in mobile phones and other portable device applications. It is capable of delivering 1W of continuous RMS output power into an 8Ω load at 5V.

Key Features

• High Output Power: The TS4871IST offers an impressive 1W of output power, providing a robust audio performance for its size.
• Low Voltage Operation: With an operating range starting from 2.4V to 5.5V, this amplifier is optimized for battery-powered devices, ensuring efficient operation even at low power levels.
• Low Quiescent Current: It boasts a low quiescent current which is essential for extending battery life in portable applications.
• High Signal-to-Noise Ratio (SNR): A high SNR ensures crystal-clear sound quality, minimizing the background noise during operation.
• Standby Mode: The inclusion of a standby mode allows for power conservation, making it ideal for devices that require long battery life.

Applications

The TS4871IST is versatile and can be used in a variety of applications. It is particularly suitable for:

• Mobile phones
• Portable media players
• Handheld gaming devices
• PDAs and portable computing devices
• GPS units

Technical Specifications

• Output Power: 1W into 8Ω at 5V
• Operating Voltage Range: 2.4V to 5.5V
• Quiescent Current: 4mA (typical)
• Signal to Noise Ratio: 100dB (typical)
• Standby Current: 10nA (typical)
• Package: Flip-Chip 9 bumps

The TS4871IST is provided in a compact flip-chip package that allows for efficient heat dissipation and space-saving on the PCB. Its superior audio performance and power efficiency make it an excellent choice for designers looking to enhance the audio experience in portable applications.