The LM4990ITLBD is an advanced audio power amplifier designed by Texas Instruments to cater to the needs of modern audio applications. This high-performance component is ideal for portable devices where high-quality sound and energy efficiency are paramount.

Key Features

• Output Power: The LM4990ITLBD boasts an impressive output power capability, capable of delivering 2 Watts into an 8 Ohm load with a 5V power supply. This makes it suitable for a wide range of audio applications, from mobile phones to portable media players.
• Efficiency: Designed with power conservation in mind, it operates with high efficiency, which extends battery life in portable devices without sacrificing audio performance.
• Boomer Audio Power: As part of Texas Instruments' Boomer range, it is specifically designed for portable applications where space and power efficiency are critical.
• Advanced Circuitry: The amplifier incorporates a sophisticated circuit design, including a differential architecture that significantly reduces RF rectification effects.
• Sound Quality: With a low THD+N (Total Harmonic Distortion plus Noise) of 0.4% at 1kHz, it ensures high-fidelity audio playback, providing a clear and crisp sound experience.
• Micro-Power Shutdown: The device features a micro-power shutdown mode with an ultra-low quiescent current, which is essential for preserving power in battery-operated devices.

Applications

The LM4990ITLBD is versatile and can be used in a variety of audio applications. Its compact package and high output power make it an excellent choice for:

• Mobile Phones
• Portable Media Players
• Handheld Gaming Devices
• Tablet Computers
• Portable Speakers
• Laptop Computers

Package and Availability

This audio amplifier is available in a space-saving micro SMD package, which is perfect for applications where board space is at a premium. The LM4990ITLBD is part of Texas Instruments' commitment to providing innovative, high-quality components for the audio industry and is readily available through their distribution network.