LM49153TMX/NOPB

Audio Amplifiers Overview

The LM49153TMX/NOPB is a mono audio subsystem integrating a Class D speaker amplifier and a Class G headphone amplifier. It operates on a supply voltage range of 2.7 V to 5.5 V and functions within an operating temperature range of -40°C to 85°C. The device is housed in a 25-DSBGA (YFQ) package, measuring 2.01x2.01 mm. It supports mono and stereo headphone outputs alongside the mono speaker channel.

Audio Amplifiers Feature Summary

• Integrates Class D speaker amplifier and Class G headphone amplifier in a single solution
• Supports both mono and stereo headphone output configurations
• Operates with low supply voltage ranging from 2.7 V to 5.5 V

Audio Amplifiers Applications

• Mobile phone audio systems
• Portable media players
• Handheld gaming devices

Audio Amplifiers Procurement Notes

Verify the manufacturer origin, 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-DSBGA footprint for PCB layout compatibility. Check active production status and availability through authorized distributors.

Audio Amplifiers Selection Notes

Select this component when a compact mono audio solution is required for battery-powered devices. It is suitable for applications needing integrated headphone and speaker amplification without external components. Consider the 2.7V minimum supply voltage for compatibility with single-cell lithium-ion batteries. Evaluate the thermal performance within the specified -40°C to 85°C range for the target environment.

Audio Amplifiers Part Context

This part belongs to the LM49153 family of mono audio subsystems. It combines Class D and Class G technologies to optimize efficiency and sound quality. The TMX variant denotes tape and reel packaging for automated assembly. The NOPB suffix confirms environmental compliance. It is designed for space-constrained portable electronics requiring high-efficiency audio amplification.

Audio Amplifiers Replacement Considerations

Check for LM49153TME/NOPB if a different packaging option is required. Verify pin-to-pin compatibility before substitution. Ensure the replacement maintains the same Class D and Class G architecture. Confirm supply voltage and temperature ranges match the original design requirements.