The LM4990LD/NOPB is an audio power amplifier primarily designed by Texas Instruments to deliver high-quality sound enhancement for portable electronic devices. This component is part of TI's extensive audio amplifier product line, known for its reliability and performance.

Key Features

• Output Power: Capable of delivering 2W of continuous average power to a 4 Ohm load with less than 1% distortion (THD+N) from a 5V power supply.
• Boomer Audio Power: As part of TI's Boomer series, this amplifier is optimized for mobile phones, PDAs, laptops, and other portable devices where space and battery life are critical.
• No Sync (NOPB): The ‘NOPB’ designation indicates that the product is lead-free and RoHS compliant, making it suitable for environmentally sensitive applications.
• Advanced Pop & Click Circuitry: This feature eliminates noises that would typically occur during turn-on and turn-off transitions.
• Micro-Power Shutdown: The LM4990 features a micro-power shutdown mode with a typical shutdown current of 0.1nA, which is ideal for preserving battery life in portable applications.

Specifications

Applications

The LM4990LD/NOPB is versatile and can be used in various applications that require audio playback. It is particularly useful in portable devices where power efficiency and space constraints are of utmost importance. Common applications include:

• Mobile Phones
• Portable Media Players
• Laptop Computers
• Portable Gaming Devices

With its excellent audio performance and power-saving features, the LM4990LD/NOPB stands out as a top choice for designers looking to enhance the audio experience in their portable electronic devices.