The LM4809LQX/NOPB is a high-performance audio power amplifier from Texas Instruments, designed to deliver premium sound quality with minimal power consumption. This compact, yet powerful component is an ideal choice for portable and space-constrained applications where efficient audio amplification is required.

Key Features

• Output Power: The LM4809LQX/NOPB is capable of delivering 105mW per channel into a 16Ω load, providing substantial volume and clarity for its size.
• Boomer Audio Power Amplifiers: As part of TI's Boomer® series, this device is specifically designed to provide high-quality audio performance for portable applications such as mobile phones, PDAs, laptops, and other handheld devices.
• Low Voltage Operation: Operating from a 2.7V to 5.5V power supply, the LM4809LQX/NOPB is optimized for low voltage applications, ensuring energy efficiency and longer battery life in portable devices.
• Low Shutdown Current: It features an ultra-low shutdown current of 0.7µA, which helps to conserve power when the amplifier is not in active use.
• Unity-Gain Stable: The device can be configured in a unity-gain stable mode, making it versatile for various audio applications without the need for external compensation.

Advanced Specifications

The LM4809LQX/NOPB boasts an impressive total harmonic distortion plus noise (THD+N) of 0.1% at 1kHz, ensuring high-fidelity audio reproduction. It also features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism to prevent damage from overheating.

Package and Quality

This audio amplifier comes in an LLP-10 package, which is known for its small footprint and low profile, making it highly suitable for space-constrained environments. Additionally, the LM4809LQX/NOPB is lead-free and RoHS compliant, adhering to environmental standards and ensuring compatibility with modern manufacturing processes.

Applications

With its versatile features and compact size, the LM4809LQX/NOPB is perfect for a variety of applications where quality audio amplification is required, including:

• Portable audio devices
• Mobile phones and smartphones
• Personal digital assistants (PDAs)
• Notebook and desktop computers
• Portable media players