The MAX9730ETI+ from Maxim Integrated is a high-efficiency, 2.2W mono Class D audio power amplifier that is designed to deliver premium sound quality in a compact form factor. This integrated circuit is tailored for portable applications where space is at a premium and power efficiency is crucial, such as mobile phones, portable media players, and handheld gaming devices.

Key Features

• Output Power: The MAX9730ETI+ can deliver up to 2.2W into a 4Ω load, ensuring loud and clear sound reproduction for a variety of audio content.
• High Efficiency: As a Class D amplifier, it offers greater than 85% efficiency, which minimizes power loss as heat and extends battery life in portable devices.
• Low EMI: The device features spread-spectrum modulation, which reduces electromagnetic interference (EMI), making it suitable for RF-sensitive environments.
• Compact Size: Encased in a 28-pin TQFN (Thin Quad Flat No leads) package, the MAX9730ETI+ has a small footprint that is ideal for space-constrained applications.
• Integrated Click-and-Pop Suppression: This feature minimizes the noise heard when the amplifier is turned on or off, providing a better user experience.
• Thermal Protection: The MAX9730ETI+ includes over-temperature protection that shuts down the amplifier to prevent damage from excessive heat.
• Flexible Power Supply: The amplifier can operate from a 2.7V to 5.5V power supply, allowing it to be used in a wide range of devices with different power requirements.

Applications

The MAX9730ETI+ is suitable for a diverse array of applications that require high-quality audio output from a small package. These include:

• Portable Audio Devices
• Mobile Phones
• Tablets and Laptops
• Handheld Gaming Devices
• GPS Units
• Portable Media Players

With its combination of high performance, efficiency, and compact size, the MAX9730ETI+ is an excellent choice for designers looking to enhance the audio capabilities of their next portable device.