LM4992SD/NOPB

Audio Amplifiers Overview

The LM4992SD/NOPB is a stereo Class-AB audio amplifier manufactured by Texas Instruments. It operates on a single power supply ranging from 2.2 V to 5.5 V and delivers 1.07 W of output power into an 8-ohm load. The device features a total harmonic distortion plus noise of 0.15% and draws a typical operating supply current of 7 mA. It utilizes a WSON-14 package, supports surface-mount installation, and functions within a temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Stereo Class-AB architecture for dual-channel audio amplification
• Low total harmonic distortion plus noise specification
• Single-supply operation capability
• Integrated shutdown functionality

Audio Amplifiers Applications

• Portable consumer electronics requiring stereo sound
• Battery-powered audio devices
• Embedded audio systems with limited supply voltage

Audio Amplifiers Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm RoHS compliance and pinout configuration. Ensure the procurement channel provides valid traceability for the NOPB designation. Cross-reference the datasheet revision date to ensure compatibility with current design requirements and environmental standards.

Audio Amplifiers Selection Notes

Select this component when a low-power stereo solution is required for applications powered by a single voltage rail between 2.2 V and 5.5 V. The WSON-14 package is suitable for space-constrained designs. Consider the 7 mA quiescent current for battery life optimization and verify that the 1.07 W output power meets the acoustic requirements of the target application.

Audio Amplifiers Part Context

This part belongs to the LM4992 series of audio amplifiers from Texas Instruments. It is designed as a compact stereo amplifier solution. The NOPB suffix indicates lead-free construction and compliance with RoHS directives. It serves as a specialized integrated circuit for analog audio signal processing in portable electronic devices.

Audio Amplifiers Replacement Considerations

Direct replacement options include the LM4992SDBD evaluation board variant or other members of the LM4992 family. Verify pin-to-pin compatibility and electrical specifications before substituting with alternative manufacturers' components.