LM49153TME/NOPB

Audio Amplifiers Overview

The LM49153TME/NOPB is a mono audio subsystem integrating a Class G headphone amplifier and a Class D speaker amplifier. It delivers 1.35 W of output power into an 8-ohm load. The device operates on a supply voltage range of 2.7 V to 5.5 V. It features an analog input interface and includes a no-clip noise gate function. The component is housed in a 25-pin DSBGA (YFQ) package with a thermal pad. It supports operation within a temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Integrates Class G headphone amplifier and Class D speaker amplifier in a single package
• Includes no-clip noise gate functionality for improved audio quality
• Supports mono and stereo headphone outputs alongside mono speaker output

Audio Amplifiers Applications

• Mobile phone audio systems
• Portable media players
• Personal digital assistants

Audio Amplifiers Procurement Notes

Verify the manufacturer designation, as National Semiconductor assets are managed by Texas Instruments. Confirm the specific suffix 'NOPB' indicates lead-free and RoHS compliance. Ensure the package type matches the required 25-pin DSBGA (YFQ) footprint for PCB layout compatibility. Check for active production status and availability through authorized distributors.

Audio Amplifiers Selection Notes

Select this component for applications requiring a combined headphone and speaker solution in a compact form factor. Consider the 1.35 W output power capability relative to the speaker impedance requirements. Evaluate the 2.7 V to 5.5 V supply voltage range against the system's battery or power rail specifications. Verify that the mono configuration meets the audio channel requirements of the target device.

Audio Amplifiers Part Context

This part belongs to the LM4915x family of mono audio subsystems. It is designed for portable consumer electronics where space and power efficiency are critical. The integration of both headphone and speaker amplifiers reduces the overall bill of materials and simplifies the design process for mobile devices.

Audio Amplifiers Replacement Considerations

Check for LM49153TMX/NOPB, which shares similar functional characteristics but may differ in tape and reel packaging specifications. Verify pinout and electrical parameters before substitution.