LM4665MM/NOPB

Audio Amplifiers Overview

The LM4665MM/NOPB is a single-channel mono Class-AB audio power amplifier manufactured by Texas Instruments. It delivers 1.4 W of continuous output power into an 8-ohm load with less than 0.8% total harmonic distortion plus noise. The device operates from a single supply voltage ranging from 2.7 V to 5.5 V and draws a typical quiescent current of 9 mA. It features differential input capability and is housed in a compact MSOP-10 package, designed for operation across a temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Delivers high-fidelity audio amplification with low distortion characteristics suitable for portable applications.
• Supports differential input configurations to improve noise immunity in signal paths.
• Operates efficiently on a single power supply rail within a wide voltage range.

Audio Amplifiers Applications

• Portable media players
• Mobile phones
• Personal digital assistants

Audio Amplifiers Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free compliance and RoHS standards as per the manufacturer's datasheet. Ensure the MSOP-10 package dimensions match your PCB footprint requirements. Confirm that the thermal performance meets your system's dissipation needs under maximum load conditions before finalizing procurement.

Audio Amplifiers Selection Notes

Select this component when a single-ended or differential input mono amplifier is required for battery-powered devices. Consider the 1.4 W output capability relative to the speaker impedance and supply voltage constraints. Evaluate the MSOP-10 package size against available board space compared to other Boomer series alternatives.

Audio Amplifiers Part Context

This part belongs to the Texas Instruments Boomer family of audio amplifiers. It is functionally related to variants such as the LM4665ITL/NOPB, which shares similar electrical characteristics but may differ in packaging or specific operational parameters. The LM4665 series is designed for low-voltage, high-efficiency audio applications.

Audio Amplifiers Replacement Considerations

The LM4665MMX/NOPB is a tape-and-reel version of the same functional device. Verify pinout compatibility if substituting with other Boomer series amplifiers like the LM4667MM/NOPB, noting differences in output power ratings.