MAX98500EWE+

Audio Amplifiers Overview

The MAX98500EWE+T is a high-efficiency, Class D audio amplifier featuring an integrated boost converter to deliver constant output power across wide battery supply voltages. It operates on a 2.5V to 5.5V supply range with undervoltage lockout protection. The device provides 2.2W into 8Ω at 10% THD+N and 1.7W at 1% THD+N. It includes automatic level control with battery tracking, differential inputs, and three selectable gain settings (6dB, 15.5dB, 20dB). The amplifier achieves up to 87% total efficiency and utilizes active emission limiting for low EMI. It is housed in a compact 16-bump WLP package measuring 2.1mm x 2.1mm.

Audio Amplifiers Feature Summary

• Integrated boost converter delivers constant output power over a wide battery voltage range
• Automatic level control with battery tracking prevents system reset due to voltage collapse
• Active emission limiting edge-rate control reduces electromagnetic interference without external filters
• Comprehensive click-and-pop suppression ensures quiet startup and shutdown transitions

Audio Amplifiers Applications

• Cell Phones
• Smartphones
• GPS Devices
• Mobile Internet Devices
• Active Speaker Accessories

Audio Amplifiers Procurement Notes

Verify the component status as discontinued or obsolete through official manufacturer channels before design finalization. Confirm RoHS compliance and lead-free packaging specifications against current datasheet revisions. Ensure compatibility with existing PCB footprints for the 16-bump WLP package. Check for available evaluation kits such as the MAX98500EVKIT for prototype validation. Review thermal dissipation requirements for multilayer board implementations.

Audio Amplifiers Selection Notes

Select this amplifier for applications requiring high efficiency and minimal external components. The integrated boost converter eliminates the need for separate power management circuits. Differential inputs improve noise immunity in RF-dense environments. Verify that the speaker load impedance and series inductance meet the filterless operation requirements. Consider the specific gain setting needed based on the input signal amplitude and source impedance characteristics.

Audio Amplifiers Part Context

The MAX98500 belongs to the Maxim Integrated audio amplifier family, specifically designed for portable consumer electronics. It represents a solution for boosting audio performance in battery-powered devices where space and efficiency are critical constraints. The device integrates both the power stage and control logic to simplify the bill of materials. Its small form factor allows for integration into densely packed mobile devices.

Audio Amplifiers Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.