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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

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

Side-by-side specifications of related catalog parts.

Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.

This PartRelated PartRelated PartRelated Part
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.