LM4667MM/NOPB

Audio Amplifiers Overview

The LM4667MM/NOPB is a single-channel mono audio amplifier manufactured by Texas Instruments, part of the Boomer series. It operates as a Class-AB amplifier with an output power of 1.3 W into an 8 Ohm load. The device supports a supply voltage range from 2.7 V to 5.5 V and draws a typical operating current of 9 mA. Total Harmonic Distortion plus Noise (THD+N) is specified at 0.8%. It features differential input and is housed in an MSOP-10 package, suitable for surface mount installation across a temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Single-channel mono Class-AB audio amplification architecture
• Differential signal input capability
• Compact MSOP-10 surface-mount packaging

Audio Amplifiers Applications

• Portable audio devices requiring low-power amplification
• Battery-operated consumer electronics
• Mono speaker driver circuits

Audio Amplifiers Procurement Notes

Verify the manufacturer designation carefully, as National Semiconductor is now part of Texas Instruments. Confirm the specific suffix 'NOPB' indicates lead-free compliance and RoHS adherence. Ensure the MSOP-10 package type matches your PCB footprint requirements. Cross-reference the datasheet revision to confirm electrical characteristics align with your design specifications before finalizing procurement.

Audio Amplifiers Selection Notes

Select this component when a single-ended mono output is required with moderate power delivery. The Class-AB topology offers a balance between efficiency and linearity compared to other classes. Consider the MSOP-10 package size for space-constrained designs. Verify that the 2.7 V minimum supply voltage meets your system's battery or rail constraints. Evaluate thermal performance within the specified operating temperature range.

Audio Amplifiers Part Context

This component belongs to the LM4667 family of audio amplifiers produced by Texas Instruments. The 'MM' suffix denotes the MSOP-10 package variant. The 'NOPB' suffix typically signifies non-plumb (lead-free) construction compliant with environmental directives. This part is categorized under Audio ICs and serves as a solution for small form-factor audio applications.

Audio Amplifiers Replacement Considerations

Consult official substitution guides for compatible alternatives within the same product family. Verify pinout compatibility and electrical parameter equivalence before replacing. No specific substitute part numbers are confirmed in the provided documentation.