LM49270SQE/NOPB

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The LM49270SQE/NOPB audio amplifier has unique characteristics that make it ideal for use in high power audio applications while providing a level of low-noise performance that is suitable for high-resolution audio systems. The LM49270SQE/NOPB is a dual-channel, single-ended high current amplifier designed to drive up to 2x3W in 2Ω stereo systems. It features low THD+N of less than 0.1% and a low quiescent current of just 80mA at 3.6V. It has a high peak output power of 6W in bridges mode and 18V peak-peak output voltage.

The LM49270SQE/NOPB provides an efficient solution for audio applications, such as portable and stationary audio products, and allows products to meet the tight space, low-power and high-performance requirements of today\'s audio systems. The LM49270SQE/NOPB comes in a small 8-pin package that houses a power amplifier, sound controller and protection switch for over-current and thermal protection. All audio signal and protection functions are configured and controlled via a single I2C interface. This allows for easy integration into various audio systems and simplifies the application design process.

The LM49270SQE/NOPB application field and working principle can be divided into two categories. The first is circuitry level and the second is system level. On the circuitry level, the LM49270SQE/NOPB is an audio power amplifier that packs two channels of audio output into a compact 8-pin package, which requires a single supply voltage. The amplifier is able to provide up to 3W per channel of power output at 8Ω, while still providing a high-efficiency design, with minimal heat generation. This can help reduce overall product size and complexity.

The system level involves connecting the amplifier to the host system for controlling and audio applications. The LM49270SQE/NOPB integrates a sound controller and audio protection switch in addition to the power amplifier. These features are all I2C programmable and allow the user to control the audio functions of the amplifier. This allows the user to control the volume, gain, treble and bass functions, as well as monitor the amplifier’s operating parameters. The integrated protection switch also provides thermal protection, making the device suitable for long-term operation.

The LM49270SQE/NOPB is an ideal choice for audio applications due to its low noise performance and high peak output power. Its versatile I2C control and protection functions simplify the design process and make it a great choice for portable and stationary audio systems.

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