Texas Instruments

LM4879IBPX

LM4879IBPX Description

The LM4879IBPX is a monolithic Class AB audio power amplifier from Texas Instruments, designed to deliver high performance in a compact surface-mount package. This amplifier is part of the renowned Boomer® series, known for its robustness and efficiency. The LM4879IBPX is capable of delivering a maximum output power of 1.1W into an 8-ohm load, making it suitable for a variety of audio applications. It operates over a wide supply voltage range of 2.2V to 5.5V, ensuring compatibility with different power supply configurations.

This amplifier is housed in a surface-mount 8-lead USMD package, which is ideal for space-constrained designs and high-density PCB layouts. The LM4879IBPX is available in a tape and reel (TR) packaging format, facilitating automated assembly processes. Despite its small form factor, the LM4879IBPX incorporates several advanced features, including depopulation (depop) functionality, shutdown capabilities, and thermal protection, which enhance its reliability and versatility.

LM4879IBPX Features

• High Output Power: Delivers 1.1W of output power into an 8-ohm load, ensuring robust audio performance.
• Wide Supply Voltage Range: Operates efficiently between 2.2V and 5.5V, providing flexibility in power supply options.
• Advanced Protection Features: Includes depop, shutdown, and thermal protection to safeguard the device and ensure reliable operation.
• Surface-Mount Packaging: The 8-lead USMD package is ideal for compact and high-density PCB designs.
• Compatibility and Compliance: The LM4879IBPX is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.
• Moisture Sensitivity Level: MSL 1 (Unlimited), making it suitable for various manufacturing environments without the need for special handling.

LM4879IBPX Applications

The LM4879IBPX is well-suited for a range of applications where compact size, high performance, and reliability are critical. Its ability to deliver 1.1W of power into an 8-ohm load makes it ideal for portable audio devices, such as smartphones, tablets, and portable media players. The wide supply voltage range and surface-mount package also make it suitable for automotive infotainment systems, where space and power efficiency are paramount.

In addition to consumer electronics, the LM4879IBPX can be used in industrial applications where audio feedback or alert systems are required. Its robust design and advanced protection features ensure long-term reliability, even in demanding environments.

Conclusion of LM4879IBPX

The LM4879IBPX from Texas Instruments is a versatile and high-performance Class AB audio power amplifier. Its ability to deliver 1.1W of output power into an 8-ohm load, combined with a wide supply voltage range and advanced protection features, makes it an excellent choice for a variety of audio applications. The compact surface-mount package and compatibility with automated assembly processes further enhance its appeal for modern electronics designs.

Despite being marked as obsolete, the LM4879IBPX remains a reliable and efficient solution for applications requiring a compact, high-performance audio amplifier. Its features and performance benefits make it a standout choice in its category, ensuring it continues to meet the needs of designers and engineers in the electronics industry.