MAX4297EAG+T

Audio Amplifiers Overview

The MAX4297EAG+T is a stereo Class-D audio power amplifier operating from a single +2.7V to +5.5V supply. It delivers up to 2W per channel into a 4Ω load at 5V, with an efficiency exceeding 85%. The device features a logic-programmable PWM frequency selectable between 125kHz and 1MHz via FS1/FS2 pins. Key electrical parameters include a quiescent current of 4.6mA, shutdown current under 2.3µA, and THD+N of 0.4% at 1kHz. It incorporates thermal protection, undervoltage lockout, and clickless startup/shutdown.

Audio Amplifiers Feature Summary

• Stereo Class-D architecture with bridge-tied load (BTL) outputs eliminating external coupling capacitors
• Logic-programmable pulse-width modulation frequency for optimized output filter size and cost
• Integrated thermal overload protection and undervoltage lockout for robust operation
• Low-power shutdown mode with clickless transitions to preserve battery life

Audio Amplifiers Applications

• Portable multimedia devices and PDAs
• Battery-powered speakers and boom boxes
• Cordless phones and game cards
• Laptop and notebook computer audio systems

Audio Amplifiers Procurement Notes

Verify the specific suffix EAG corresponds to the 24-pin SSOP package and -40°C to +85°C temperature range as listed in the official ordering information. Confirm RoHS compliance status through the manufacturer's documentation. Ensure the component matches the exact part number before integration to avoid pinout or functional discrepancies.

Audio Amplifiers Selection Notes

Select this component for applications requiring high efficiency and low heat dissipation in portable designs. The programmable switching frequency allows optimization of external LC filter components based on space constraints. Verify that the required output power aligns with the 2W/channel capability at the target supply voltage and load impedance.

Audio Amplifiers Part Context

This part belongs to the MAX4295/MAX4297 family of mono/stereo switch-mode audio amplifiers. While the MAX4295 provides a single-channel configuration, the MAX4297 offers dual independent channels for stereo applications. Both share identical control logic and protection features but differ in channel count and package options.

Audio Amplifiers Replacement Considerations

The MAX4295EEE+ serves as the mono-channel counterpart within the same series. Direct substitution requires verifying that the application utilizes only one channel or that the second channel remains unconnected. Package differences must be addressed if transitioning between QSOP and SSOP footprints.