LM4864MX

The LM4864MX from Texas Instruments is a Class-AB audio power amplifier capable of delivering up to 725mW of continuous average power into an 8Ω load with 1% THD+N from a 5V power supply. This amplifier is designed to provide high-quality audio output while requiring minimal external components, eliminating the need for output coupling capacitors, bootstrap capacitors, or snubber networks.

Key electrical specifications include an analog input type and hardware control interface. It operates with a power stage supply voltage ranging from 2.7V to 5.5V and an analog supply voltage also between 2.7V and 5.5V. The amplifier exhibits a typical THD+N of 0.7% at 1kHz and supports a minimum load impedance of 4Ω. A typical shutdown current of 0.7µA is also noted.

Available in SOIC, VSSOP, PDIP, and WSON packages, the LM4864MX is suitable for various audio applications. It operates within a temperature range of -40°C to 85°C. The device includes thermal shutdown protection circuitry and is unity-gain stable, offering external gain configuration capability.

This amplifier is part of the Boomer family of audio power amplifiers from Texas Instruments, optimized for applications requiring efficient and high-quality audio amplification from low supply voltages.