LM4808MM/NOPB

Audio Amplifiers Overview

The LM4808MM/NOPB is a dual-channel Class-AB audio amplifier manufactured by Texas Instruments, designed for headphone applications. It delivers 105 mW of output power into a 16 Ohm load with a total harmonic distortion plus noise of 0.05%. The device operates on a single supply voltage ranging from 2 V to 5.5 V and draws a typical operating current of 1.2 mA. It features a gain-bandwidth product of 5.5 MHz and an input bias current of 10 pA. The component is housed in an 8-pin VSSOP package and supports surface mount installation across a temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Dual-channel stereo output configuration optimized for low-power audio reproduction
• Class-AB topology providing high fidelity with minimal signal distortion
• Single-supply operation capability simplifying circuit design requirements

Audio Amplifiers Applications

• Portable digital audio players
• Mobile phone headphone outputs
• MP3 player circuits

Audio Amplifiers Procurement Notes

Verify the specific suffix against official documentation to confirm pinout compatibility and electrical specifications. Ensure the ordering part number matches the required package style and RoHS compliance status. Cross-reference the manufacturer datasheet for any recent product change notifications or lifecycle updates before finalizing procurement decisions.

Audio Amplifiers Selection Notes

Select this component when a compact dual-channel solution is required for battery-powered devices. The low quiescent current makes it suitable for extending operational time in portable electronics. Verify that the load impedance matches the 16 Ohm specification to achieve the rated power output without exceeding thermal limits.

Audio Amplifiers Part Context

This device belongs to the LM4808 series of audio amplifiers from Texas Instruments. It is categorized under analog mixed-signal integrated circuits specifically within the consumer audio segment. The component represents a transition from National Semiconductor products following the company acquisition, maintaining established performance standards for portable audio markets.

Audio Amplifiers Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify pin-to-pin compatibility and electrical parameter alignment before replacing existing designs.