LM4861MX

$0.60

Description：LM4861 BOOMER SERIES: 1.1W AUDIO
Series：Boomer®
Mfr：National Semiconductor
Package：Bulk

SKU:e438594a567e Category: Audio Amplifiers Brand: National Semiconductor

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Product introduction

LM4861MX is listed in the Audio Amplifiers range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is LM4861 BOOMER SERIES: 1.1W AUDIO. Review the specifications below when checking this part for your BOM.

Audio Amplifiers specifications for LM4861MX

Description：LM4861 BOOMER SERIES: 1.1W AUDIO
Series：Boomer®
Mfr：National Semiconductor
Package：Bulk
Type：Class AB
Output Type：1-Channel (Mono)
Max Output Power x Channels @ Load：1.5W x 1 @ 8Ohm
Voltage - Supply：2V ~ 5.5V
Features：Shutdown, Thermal Protection
Mounting Type：Surface Mount
Supplier Device Package：8-SOIC
Package / Case：8-SOIC (0.154", 3.90mm Width)
Operating Temperature：-40°C ~ 85°C (TA)
Grade：-
Qualification：-

Audio Amplifiers datasheet and documents for LM4861MX

LM4861MX

Audio Amplifiers Overview

The LM4861MX is a single-channel mono Class-AB audio power amplifier manufactured by Texas Instruments, formerly National Semiconductor. It delivers 1.1 W of output power into an 8-ohm load with a total harmonic distortion plus noise of 0.72%. The device operates on a single supply voltage ranging from 2 V to 5.5 V and draws a typical quiescent current of 6.5 mA. It features analog input and differential output capabilities. The component is housed in an 8-SOIC surface-mount package and functions within a temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

Integrated thermal protection circuitry for operational safety
Supports external shutdown control for power management
Designed for low quiescent current consumption

Audio Amplifiers Applications

Portable multimedia players
Personal digital assistants
Mobile phones
MP3 players

Audio Amplifiers Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the suffix NOPB indicates RoHS compliance. Ensure the SOIC-8 package matches the design requirements. Cross-reference the datasheet revision to confirm pinout compatibility before integration.

Audio Amplifiers Selection Notes

Select this component for applications requiring a single-supply, mono audio amplifier with moderate power output. The 2 V to 5.5 V operating range suits battery-powered devices. Verify that the 8-ohm load impedance aligns with the speaker specifications. Consider the thermal performance if the enclosure limits heat dissipation.

Audio Amplifiers Part Context

This part belongs to the Boomer series of audio amplifiers from Texas Instruments. It is designed for portable consumer electronics where space and power efficiency are critical constraints. The LM4861MX provides a cost-effective solution for driving small speakers in mobile devices without requiring complex biasing networks.