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LM4871M

The Texas Instruments LM4871M is a 3W mono Class-AB audio amplifier with analog input. It operates from a 2V to 5.5V supply and features a micropower shutdown mode.

✓ Total Stock: 3,058 pcs

$ Price Range: $0.99

LM4871M Available from 5 distributors

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Xingangxin ✓ Non-Authorised Inventory information	2,500 pcs On Request	2500 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Risen Electronics ✓ Non-Authorised Inventory information	406 pcs On Request	406 pcs	On Request	1	On Request	On Request	On Request	On Request	2026-02-16 21:33:16
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LM4871M Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Texas Instruments
Control Interface	Hardware
Halogen Free	No
Input Type	Analog
Lead Style	Gull Wing
Mounting Type	Surface Mount
SVHC Present	Not Present

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LM4871M Description

Short technical summary and product information.

The Texas Instruments LM4871M is a versatile 3W mono Class-AB audio power amplifier designed for audio applications. It accepts analog input and operates efficiently within a supply voltage range of 2.0V to 5.5V. The amplifier delivers up to 3W of continuous average power into a 3 Ohm load with low total harmonic distortion plus noise (THD+N) of 0.13% at 1kHz.

Key features include a micropower shutdown mode, which reduces quiescent current to 0.6µA typical, making it ideal for portable and battery-powered devices. The LM4871M requires few external components and operates on low supply voltages, simplifying circuit design. It is available in WSON, VSSOP, and SOIC packages, supporting surface mount applications.

This amplifier is unity-gain stable and offers external gain configuration capability. It is pin-compatible with the LM4861, providing a potential upgrade path. The device is suitable for various audio output applications where space and power efficiency are critical.

LM4871M Quick Information

Product Type: Audio Amplifier

Canonical Name: LM4871M 3W Mono Class-AB Audio Amplifier

Subcategory: General-Purpose Audio Amplifiers

LM4871M Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

Lead Free: Yes

LM4871M Estimated Pricing

Qty	Low	High
1+	$0.99	$0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM4871M Features

3W mono Class-AB audio amplifier
Analog input, 2V to 5.5V supply
Low THD+N: 0.13% at 1kHz
Micropower shutdown mode (0.6µA typical)
Available in WSON, VSSOP, SOIC packages

LM4871M Applications

Portable audio devices
Battery-powered systems
Consumer electronics audio
Soundbars and TVs
Mobile phones and tablets

LM4871M FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range of the LM4871M?

2V to 5.5V.

What packages are available for the LM4871M?

VSSOP (DGK), SOIC (D), WSON (NGN), and PDIP.

What is the operating temperature range of the LM4871M?

-40°C to 85°C.

What is the output power of the LM4871M?

Up to 3W into 3 or 4 Ohm loads at 10% THD+N, 2.5W typical, and 1.5W into 8 Ohm.

What is the typical THD+N of the LM4871M?

0.13% at 1kHz.

What is the shutdown current of the LM4871M?

0.6µA typical.

What is the input type of the LM4871M?

Analog input with Class-AB architecture.