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Texas Instruments LM4991LD/NOPB Amplifiers - Audio

IC AMP CLASS AB MONO 3W 8WSON

5,934 ActiveTexas Instruments8-WDFN Exposed Pad$1.70RoHS
LM4991LD/NOPB 8-WDFN Exposed Pad package illustration

Same model may have multiple batches, images only for reference.

LM4991LD/NOPB
Manufacturer
Part Number (MPN)
LM4991LD/NOPB
Detailed Description
IC AMP CLASS AB MONO 3W 8WSON
Package
8-WDFN Exposed Pad
Key Features
Package / Case: 8-WDFN Exposed Pad; Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
PDF LM4991LD/NOPB Datasheet
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Technical Specifications

Texas Instruments LM4991LD/NOPB Amplifiers - Audio technical specifications.

General

Series
LM4991
RoHS
Yes
Number of Channels
1 Channel
Package / Case
8-WDFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.2V ~ 5.5V
Lifecycle Status
Active
Features
Depop, Shutdown, Thermal Protection
Type
Class AB

Alternate Parts Comparison (LM4991LD/NOPB vs LM3S1332-EQC50-A2T vs LM3S1435-EQC50-A2 vs LM3S2533-EQC50-A2)

Side-by-side technical parameter comparison of related primary models in this product family.

This PartAlternate PartsAlternate PartsAlternate Parts
SeriesLM4991Stellaris® ARM® Cortex®-M3S 1000Stellaris® ARM® Cortex®-M3S 1000Stellaris® ARM® Cortex®-M3S 2000
Package / Case8-WDFN Exposed Pad100-LQFP100-LQFP100-LQFP
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)-40°C ~ 105°C (TA)-40°C ~ 105°C (TA)-40°C ~ 105°C (TA)
Supply Voltage2.2V ~ 5.5V2.25V ~ 2.75V2.25V ~ 2.75V2.25V ~ 2.75V
RoHSYesYesYesYes
Lifecycle StatusActiveObsoleteObsoleteObsolete
PackageWSON (NGN)-8LQFPLQFPLQFP
Data Bus Width--32bit32bit32bit
Number of Pins--100100100
Core Processor--ARM® Cortex®-M3ARM® Cortex®-M3ARM® Cortex®-M3
Core Size--32-Bit Single-Core32-Bit Single-Core32-Bit Single-Core
Action

Cross Reference

Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .

Suggested replacements

More Parts in Audio Amplifiers

Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.