MAX9730ETI+

Audio Amplifiers Overview

The MAX9730ETI+ is a mono Class G power amplifier with an integrated inverting charge-pump power supply. It operates on a single 2.7V to 5.5V DC supply and delivers up to 2.4W of output power into an 8Ω load at VCC = 5V. The device features a proprietary output stage that provides efficiency greater than Class AB amplifiers without the EMI penalties associated with Class D designs. It includes comprehensive click-and-pop suppression, shutdown control, and soft-start circuitry. The component is fully specified over an extended temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Class G architecture with integrated inverting charge pump for high-efficiency audio amplification
• Fully differential inputs and outputs for improved noise immunity
• Comprehensive click-and-pop suppression and soft-start circuitry
• Shutdown mode for low-power consumption

Audio Amplifiers Applications

• MP3 Players
• Personal Media Players
• Handheld Gaming Consoles
• Cell Phones
• Smartphones
• Notebook Computers

Audio Amplifiers Procurement Notes

Verify the specific ordering suffix ETI+ corresponds to the 28-pin TQFN package with exposed pad. Confirm RoHS compliance status as indicated by the plus sign. Ensure the procurement channel sources from authorized distributors to guarantee authenticity. Check for any specific handling requirements related to the WLP or TQFN packages during assembly.

Audio Amplifiers Selection Notes

Select this component for portable applications requiring high output power from a single supply without external inductors. The Class G design offers better efficiency than traditional linear amplifiers while avoiding EMI issues common in switching amplifiers. Consider the thermal performance of the TQFN package for system integration. Verify compatibility with differential input sources such as CODECs.

Audio Amplifiers Part Context

The MAX9730 is part of Maxim Integrated's portfolio of audio power amplifiers designed for portable electronics. It utilizes BiCMOS process technology. The ETI+ variant specifically denotes the 28-lead Thin Quad Flatpack (TQFN) package with an exposed thermal pad, suitable for surface-mount applications requiring efficient heat dissipation.

Audio Amplifiers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.