MAX9719AETE

Audio Amplifiers Overview

The MAX9719AETE is a stereo Class-AB audio power amplifier in a 16-pin TQFN package. It operates on a single supply from 2.7V to 5.5V and delivers 1.4W continuous average power per channel into a 4Ω load with less than 1% THD+N at 5V. The device features adjustable gain via external resistors, differential inputs for improved noise rejection, and an active-low shutdown mode that reduces quiescent current to under 100nA. It includes comprehensive click-and-pop suppression circuitry and thermal protection.

Audio Amplifiers Feature Summary

• Bridge-tied load (BTL) architecture minimizes external component count while delivering high-quality audio amplification.
• Adjustable gain configuration allows flexibility in system design using external feedback resistors.
• Integrated industry-leading click-and-pop suppression ensures quiet startup and shutdown operations.
• Low-power shutdown mode significantly reduces quiescent current consumption for battery-powered applications.

Audio Amplifiers Applications

• Mobile phones
• Personal digital assistants (PDAs)
• Portable audio devices

Audio Amplifiers Procurement Notes

Verify the specific suffix 'E' indicates the 16-pin TQFN package variant. Confirm the 'A' suffix denotes the adjustable gain version. Check manufacturer documentation for lead-free/RoHS compliance status and ensure the part number matches the exact pinout and thermal pad requirements for your PCB layout.

Audio Amplifiers Selection Notes

Select this model when stereo output is required with adjustable gain settings. Ensure the application supports the 2.7V to 5.5V single-supply range. Consider the 16-pin TQFN footprint constraints. Verify that the thermal dissipation requirements are met by the board layout, as BTL configurations generate significant heat.

Audio Amplifiers Part Context

This component belongs to the MAX9718/MAX9719 family of low-cost mono and stereo audio power amplifiers. The MAX9719 specifically provides dual-channel stereo amplification. It serves as a direct upgrade path for designs previously using the LM4895, offering improved performance and lower power consumption in portable electronics.

Audio Amplifiers Replacement Considerations

The MAX9718 is pin-compatible with the LM4895. For stereo applications requiring similar functionality, verify if the fixed-gain variants like MAX9719B or MAX9719C are suitable alternatives if adjustable gain is not strictly necessary.