LM4855ITL

$0.82

Description：AUDIO AMPLIFIER, 1.1W, 3 CHANNEL
Series：Boomer®
Mfr：National Semiconductor
Package：Bulk

SKU:f84fedeacb55 Category: Audio Amplifiers Brand: National Semiconductor

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Product introduction

LM4855ITL is listed in the Audio Amplifiers range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is AUDIO AMPLIFIER, 1.1W, 3 CHANNEL. Review the specifications below when checking this part for your BOM.

Audio Amplifiers specifications for LM4855ITL

Description：AUDIO AMPLIFIER, 1.1W, 3 CHANNEL
Series：Boomer®
Mfr：National Semiconductor
Package：Bulk
Type：Class AB
Output Type：1-Channel (Mono) with Stereo Headphones
Max Output Power x Channels @ Load：1.5W x 1 @ 4Ohms
Voltage - Supply：2.6V ~ 5V
Features：-
Mounting Type：Surface Mount
Supplier Device Package：18-uSMD (1.97x2.23)
Package / Case：18-WFBGA
Operating Temperature：-40°C ~ 85°C (TA)
Grade：-
Qualification：-

Audio Amplifiers datasheet and documents for LM4855ITL

LM4855ITL

Audio Amplifiers Overview

The LM4855ITL is a Class D audio power amplifier manufactured by National Semiconductor, now part of Texas Instruments. It delivers 1.2 W of continuous output power into an 8-ohm load with a 5 V supply and less than 0.6% total harmonic distortion plus noise. The device operates from a single power supply ranging from 2.7 V to 5.5 V. It features integrated DC volume control via a serial interface and includes a headphone switch for power management. The component is housed in a 10-pin MSOP package.

Audio Amplifiers Feature Summary

Class D topology for high efficiency
Integrated DC volume control
Headphone switch capability
Single-supply operation

Audio Amplifiers Applications

Portable audio players
Mobile phones
Personal media players

Audio Amplifiers Procurement Notes

Verify the manufacturer origin as National Semiconductor or Texas Instruments due to corporate acquisition history. Confirm the specific suffix ITL corresponds to the MSOP-10 package and tape-and-reel delivery format. Ensure compatibility with the required serial control interface voltage levels before integration.

Audio Amplifiers Selection Notes

Select this component when a compact solution for low-power audio amplification is required. It is suitable for battery-operated devices where efficiency and small footprint are critical. Consider the serial control interface requirements for volume adjustment and the need for integrated headphone switching functionality.

Audio Amplifiers Part Context

This component belongs to the LM48xx series of audio amplifiers designed for portable applications. National Semiconductor was acquired by Texas Instruments, which continues to support and manufacture these legacy parts. The series focuses on providing high-quality audio performance in minimal space for consumer electronics.