LM4901LD/NOPB

Audio Amplifiers Overview

The LM4901LD/NOPB is a single-channel Class-AB audio amplifier manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 5.5V and delivers up to 1.6W of output power into a 4-ohm load. The device features a total harmonic distortion plus noise (THD+N) of 0.2%. It is housed in an LLCC plastic package with 10 pins and supports surface mount installation. The operational temperature range spans from -40°C to +85°C.

Audio Amplifiers Feature Summary

• Class-AB topology for high-fidelity audio reproduction
• Single-channel mono configuration
• Low total harmonic distortion plus noise performance

Audio Amplifiers Applications

• Portable audio devices
• Mobile phones
• Personal media players

Audio Amplifiers Procurement Notes

Verify the specific suffix 'LD' against the manufacturer's official datasheet to confirm the exact package type and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements as indicated by the NOPB designation. Cross-reference the pinout diagram with your PCB layout to prevent mounting errors during assembly.

Audio Amplifiers Selection Notes

Select this component when a single-channel solution is required for low-voltage applications. Consider the 1.6W power capability relative to the connected speaker impedance. Evaluate the thermal performance within the intended enclosure, as the LLCC package dissipates heat through the exposed pad.

Audio Amplifiers Part Context

This part belongs to the LM4901 series of audio amplifiers. It shares functional similarities with other members like the LM4901MMX/NOPB but differs in packaging. The series is designed for battery-powered consumer electronics requiring efficient audio amplification.

Audio Amplifiers Replacement Considerations

The LM4901MMX/NOPB serves as a functional alternative with identical electrical characteristics but utilizes an MSOP-10 package. Verify footprint compatibility before substitution.