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MAX98306ETD+T

MAX98306ETD+T

Analog Devices / Maxim Integrated
Audio Amplifiers Stereo 3.7W Class D Amplifier
14,065 in stock
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Overview

The MAX98306ETD+T is a high-efficiency 3.7W stereo Class D audio amplifier that operates from a 2.6V to 5.5V supply. It features an integrated gain-selection input that allows the user to choose between five distinct gain settings (6dB, 9dB, 12dB, 15dB, and 18dB) without external components.

Why Choose This Part

This amplifier eliminates the need for bulky LC output filters through its active emissions limiting circuitry, significantly reducing PCB footprint and BOM cost. It offers high 86 percent efficiency and excellent 67dB PSRR, which simplifies power supply design in noisy digital environments.

Applications

Portable Speakers
Ideal for battery-powered Bluetooth or wired speakers requiring high efficiency to extend runtime.
Tablet and Handheld Gaming
Provides high output power in a compact TDFN package suitable for space-constrained mobile devices.
Notebook Computers
Delivers stereo audio amplification for internal speakers with minimal heat dissipation.
Embedded Audio Alerts
Used in industrial or consumer appliances for high-fidelity voice prompts or alarm tones.

Getting Started

Engineers should evaluate the part using the MAX98306EVKIT evaluation board to test the five selectable gain settings and EMI performance. When designing the PCB, place the decoupling capacitors as close to the VDD pins as possible and use a short, wide trace for the speaker outputs to minimize inductance.

Also Consider

MAX98357A Analog Devices / Maxim Integrated - A mono Class D amplifier with an integrated I2S DAC, ideal if the host processor lacks an analog output.
PAM8403 DIODiodes Incorporated - A lower-cost 3W stereo alternative frequently used in budget-sensitive consumer electronics.