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LM4990ITLX The Texas Instruments LM4990ITLX is a 2-W mono Class-AB audio amplifier featuring analog input and a wide operating voltage range. It offers 0.2% THD+N at 1kHz.
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LM4990ITLX

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The Texas Instruments LM4990ITLX is a 2-W mono Class-AB audio amplifier featuring analog input and a wide operating voltage range. It offers 0.2% THD+N at 1kHz.
✓ Total Stock: 894 pcs

LM4990ITLX Available from 1 distributor

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894 pcs
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LM4990ITLX Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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LM4990ITLX Description

Short technical summary and product information.

The LM4990ITLX from Texas Instruments is a 2-Watt mono Class-AB audio amplifier designed for various audio applications. It accepts analog input and operates within a power supply range of 2.2V to 5.5V.

 

Key electrical characteristics include an output power of up to 2W into a 4Ω load at 5.0V with 1% THD+N. The amplifier maintains a THD+N of 0.2% at 1kHz. It also features a low shutdown current of 0.1µA (typical).

 

This audio amplifier is available in space-saving packages such as DSBGA, VSSOP, HVSSOP, WSON, Exposed-DAP, and MSOP-PowerPAD. It is designed for unity-gain stable operation and offers external gain configuration capability. The device includes circuitry to eliminate noise during turn-on and turn-off transitions.

LM4990ITLX Quick Information

Product Type: Audio Amplifier
Series: LM4990
Canonical Name: LM4990ITLX 2-W Mono Class-AB Audio Amplifier
Subcategory: General-Purpose Audio Amplifiers

LM4990ITLX Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM4990ITLX Features

  • 2-W mono Class-AB audio amplifier.
  • Analog input, 2.2V to 5.5V operation.
  • 0.2% THD+N at 1kHz.
  • Low shutdown current of 0.1µA.
  • Available in space-saving packages.

LM4990ITLX Applications

  • Suitable for portable audio devices.
  • Ideal for mobile phone applications.
  • Used in tablet and wearable electronics.
  • Applicable in PC and notebook audio.
  • Designed for speaker and soundbar systems.

LM4990ITLX FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum output power of the LM4990ITLX?

At 5.0V with 1% THD+N into 4Ω, the typical output power is 2W; into 8Ω it is 1.25W. At 3.0V, output is 600mW (4Ω) and 425mW (8Ω).

What is the supply voltage range?

The power stage supply voltage range is 2.2V to 5.5V. The analog supply voltage also ranges from 2.2V to 5.5V.

What is the THD+N performance?

Typical THD+N is 0.2% at 1 kHz.

What package options are available?

Packages include DSBGA (YZR), VSSOP (DGK), HVSSOP (DGQ), WSON, exposed-DAP, and MSOP-PowerPAD.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What is the shutdown current?

Typical shutdown current is 0.1µA.

What is the minimum load impedance?

Minimum load impedance is 4Ω.

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