The MAX9730ETI+T from Maxim Integrated is a high-efficiency mono Class D audio power amplifier designed for portable applications. This compact and robust integrated circuit (IC) delivers high-quality audio performance with minimal power consumption, making it ideal for battery-powered devices such as mobile phones, tablets, and portable media players.

Key Features

• High Efficiency: With its Class D operation, the MAX9730ETI+T offers more than 85% efficiency, which is significantly higher than that of traditional Class AB amplifiers. This leads to extended battery life in portable applications.
• Output Power: The device is capable of delivering up to 2.4W of continuous output power into an 8Ω load, which is ample for driving most small to medium-sized speakers without the need for a heat sink.
• Low EMI Emission: It features spread-spectrum modulation, which reduces electromagnetic interference (EMI), making it easier to meet regulatory requirements and reducing design complexity for EMI-sensitive applications.
• Integrated Click-and-Pop Suppression: The MAX9730ETI+T includes an integrated click-and-pop suppression circuitry that minimizes noise which can occur during turn-on and turn-off transitions.
• Wide Supply Voltage Range: It operates over a wide 2.7V to 5.5V supply voltage range, accommodating a variety of power sources and ensuring consistent performance across different battery charge levels.
• Thermal and Short-Circuit Protection: Built-in thermal and short-circuit protection enhances the reliability and longevity of the amplifier by preventing damage due to overheating or speaker load faults.

Applications

• Portable Audio Devices
• Mobile Phones
• Tablets
• Portable Media Players
• Wireless Speakers

The MAX9730ETI+T is offered in a compact 28-pin TQFN (Thin Quad Flat No-lead) package, which is suitable for space-constrained applications. Its excellent audio performance, coupled with low power consumption and small form factor, makes it a top choice for designers looking to enhance the audio experience in portable electronic devices.