The LM4671ITLBD from Texas Instruments is a high-performance audio amplifier designed to deliver premium sound quality with minimal power consumption. This integrated circuit is part of TI's extensive audio amplifier portfolio, renowned for its reliability and cutting-edge technology.

The LM4671ITLBD is a 2.65W, mono, fully differential audio power amplifier with a built-in boost converter. It is specifically engineered for mobile phones and other portable electronic devices where power efficiency and compact size are crucial. The device operates on a supply voltage range from 2.4V to 5.5V, which allows for flexibility in various battery-powered applications.

Key Features

• Output Power: Delivers 2.65W of continuous average power to a 4Ω load with less than 1% THD+N when powered by a 5V power supply.
• Boost Converter: Integrated boost converter that steps up the voltage supply to provide a larger output swing and higher audio output power.
• Low EMI: Features a spread spectrum, PWM architecture that significantly reduces Electromagnetic Interference (EMI), making it ideal for sensitive RF applications.
• Advanced Pop & Click Suppression: Incorporates advanced circuitry to suppress pop and click noise during power-up and shutdown transitions.
• Power Saving Modes: Includes a low-power shutdown mode and a low-power listening mode to conserve energy when full power is not required.
• Thermal Protection: Built-in thermal shutdown protection ensures the device operates within safe temperature limits.

Applications

The LM4671ITLBD is versatile and can be used in various applications. It is particularly suitable for portable devices such as:

• Mobile Phones
• Tablets
• Portable Media Players
• Handheld Gaming Devices
• GPS Units
• Other Battery-powered Devices

With its high-quality audio output and power-efficient operation, the LM4671ITLBD is an excellent choice for designers looking to enhance the audio experience in their products without compromising on battery life or space.