The LM4871LDX/NOPB is an audio power amplifier designed by Texas Instruments for high-quality sound amplification in a variety of consumer electronics. This integrated circuit is part of the Boomer® series, which is known for its high performance, low voltage audio power amplifiers built to enhance the audio experience in portable applications.

Key Features

• Output Power: Capable of delivering 3W of continuous average power to a 3Ω load with less than 10% THD+N from a 5V power supply.
• Efficiency: Features a high-efficiency Class AB amplifier design, which reduces power consumption and extends battery life in portable applications.
• Micro-Power Shutdown Mode: Includes a shutdown mode that reduces power consumption to 0.6µA (typical) when not in use, providing additional power savings.
• Unity-Gain Stable: Can be configured by external gain-setting resistors.
• No Output Coupling Capacitors, Bootstrap Capacitors, or Snubber Circuits Required: Simplifies circuit design and reduces component count.
• External Gain Configuration Capability: Offers flexibility in gain settings, allowing the user to customize the amplifier's performance.
• Thermal Shutdown Protection: Ensures the device operates within safe temperature ranges, enhancing reliability and longevity.

Applications

The LM4871LDX/NOPB is ideal for portable devices where space and power efficiency are critical. Its applications include, but are not limited to:

• Mobile Phones
• Portable Media Players
• Laptop and Notebook Computers
• Portable Gaming Devices
• GPS Devices
• Handheld Electronic Devices

Package and Quality

This audio amplifier is available in a space-saving 8-pin LLP package and is characterized for operation from -40°C to 85°C. Additionally, the LM4871LDX/NOPB is lead-free and RoHS compliant, meeting environmental standards and ensuring compatibility with modern eco-friendly electronic product designs.