MAX98308EWC+T

Audio Amplifiers Overview

The MAX98308EWC+T is a fully differential mono Class DG multilevel power amplifier with an integrated inverting charge pump, designed for portable audio applications. It operates on a supply voltage range of 2.6V to 5.25V and features a space-saving 12-bump WLP package. The device provides high output power, delivering up to 2.7W at 1% THD+N with a 5V supply into an 8Ω load. It incorporates active emissions limiting edge rate control to eliminate the need for external output filters. Gain is internally fixed via a single GAIN input pin, offering selectable levels of 8.5dB, 11.5dB, 14.5dB, 17.5dB, or 20.5dB.

Audio Amplifiers Feature Summary

• Class DG multilevel modulation extends dynamic range by employing a charge-pump-generated negative rail as needed to extend the supply range.
• Active emissions limiting edge rate and overshoot control circuitry greatly reduces EMI, eliminating the requirement for external output filtering components.
• Integrated inverting charge pump enables high efficiency over a wide output power range while maintaining a small solution size.
• Features comprehensive click-and-pop suppression, thermal protection, and overcurrent protection for robust operation.

Audio Amplifiers Applications

• Cellular Phones
• Smartphones
• Notebook Computers
• VoIP Phones
• Portable Audio

Audio Amplifiers Procurement Notes

Verify the specific suffix 'EWC' against the manufacturer's official ordering information to confirm the exact gain configuration and packaging details. Ensure compatibility with the required gain setting (8.5dB, 11.5dB, 14.5dB, 17.5dB, or 20.5dB) determined by the GAIN pin connection state. Confirm that the 12-bump WLP package footprint matches the target PCB layout requirements.

Audio Amplifiers Selection Notes

Select this component when a filterless, high-efficiency mono audio amplifier is required for battery-powered devices. It is suitable for designs needing a compact WLP package and fixed gain options without external feedback resistors. Consider the MAX98307 if adjustable gain via external resistors is preferred instead of fixed internal gain settings.

Audio Amplifiers Part Context

This part belongs to the MAX98307/MAX98308 series of 3.3W Mono Class DG Multilevel Audio Amplifiers from Analog Devices/Maxim Integrated. The series utilizes proprietary Class DG technology to combine the efficiency of Class D switching with the supply level shifting of Class G. The MAX98308 variant specifically distinguishes itself through its fixed-gain architecture and smaller WLP form factor compared to the TQFN-packaged MAX98307.

Audio Amplifiers Replacement Considerations

The MAX98307ETE+T is a direct functional alternative within the same series, differing primarily in package type (16-pin TQFN vs. 12-bump WLP) and gain configuration method (adjustable via external resistors vs. fixed internal gain).