LM4872ITP/NOPB

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LM4872ITP/NOPB is a popular Audio Amplifier, designed specifically for driving headphones and small audio speakers. It has been optimized to provide maximum power and highest efficiency in the smallest space.

A single-chip audio power amplifier, this integrated circuit is based on the National Semiconductor Corporation\'s LM4872 audio amplifier family. The LM4872ITP/NOPB is designed for optimal performance in audio applications ranging from portable consumer consumer music players to industrial test equipment. This low-cost audio amplifier is designed to provide powerful, accurate sound reproduction while meeting the space constraints of small form factor designs.

The LM4872ITP/NOPB is an ultra low-power amplifier, capable of delivering up to 55mW maximum output power into 16 ohm loads. It incorporates a capless headphone driver that utilizes a direct connection between the audio output and headphone jack. This design eliminates the need for a power supply for the headphone driver and minimizes power consumption in battery-operated systems. The part also includes a mute function that will shut down the output when no audio is input, reducing power consumption and eliminating the need for a separate power switch.

The LM4872ITP/NOPB also features a switched class-AB output stage for low distortion and wide bandwidth. The LM4872 employs a high gain bandwidth internal voltage amplifier to provide signals up to 10dB higher than standard audio signals. The amplifier employs feedback to ensure that the audio signals remain accurate and distortion-free. This reduces overall system power consumption and ensures the highest quality sound.

The LM4872ITP/NOPB can be operated from a single 3.3-volt power supply, or dual supplies +/-2.7V. The device is available in SOIC and TSSOP packages, which allows it to be used in a variety of audio applications. It can also be used with a separate microphone input stage, allowing it to drive even larger loads.

The LM4872ITP/NOPB is a versatile, feature-packed Audio amplifier. With its impressive power efficiency, low distortion, and wide bandwidth, it is the perfect choice for driving headphones and small audio speakers in portable applictions.

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