LM4663MT/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Name: LM4663MT/NOPB
Brand: Texas Instruments
SKU: LM4663MT/NOPB
Availability: InStock

LM4663MT/NOPB is a stereo Class D audio amplifier IC delivering 2.1 W per channel with 13 dB gain and 22 kHz bandwidth. It integrates two amplifier channels into a 24-pin TSSOP package for compact portable and consumer speaker applications.

OBSOLETEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

LM4663MT/NOPBSmall Outline Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline Packages
Pin Count: 24
Lifecycle: OBSOLETE
Datasheet: LM4663MT/NOPB Datasheet PDF
Category: Integrated Circuit
Price: From $1.0200(MOQ 500)
Temp Range: -40.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LM4663MT/NOPB?

Stereo Class D amplifier with 2.1 W output power per channel for efficient audio delivery
13 dB fixed gain and 22 kHz audio bandwidth covering the full audible spectrum
Low 1% THD for clean audio reproduction in consumer-grade speaker systems
2-channel integration in a 24-pin TSSOP package minimizing PCB footprint
RoHS-compliant Pb-free construction with REACH compliance for global distribution

What is LM4663MT/NOPB used for?

LM4663MT/NOPB is designed for portable Bluetooth speakers, tablet audio output stages, and laptop built-in speaker amplifiers where high efficiency and compact size are paramount. Its Class D topology minimizes heat dissipation compared to Class AB amplifiers, making it practical for fanless enclosures delivering 2.1 W per channel from a 5 V USB supply.

What are the specifications of LM4663MT/NOPB?

Pbfree Code	Yes
Reach Compliance Code	Compliant
YTEOL	0
Bandwidth-Nom	22kHz
Consumer IC Type	CLASS D AUDIO AMPLIFIER
Gain	13dB
Harmonic Distortion	1%
JESD-30 Code	R-PDSO-G24
JESD-609 Code	e3
Number of Channels	2
Number of Functions	1
Output Power-Nom	2.1W
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Supply Current-Max	35mA
Supply Voltage-Max (Vsup)	5.5V
Supply Voltage-Min (Vsup)	4.5V
Surface Mount	YES
Temperature Grade	INDUSTRIAL
Terminal Finish	Matte Tin (Sn)
Terminal Form	GULL WING
Terminal Pitch	0.65mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	40
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.33.00.01

Where can I find the LM4663MT/NOPB datasheet?

LM4663MT/NOPB Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM4663MT/NOPB?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

How does LM4663MT/NOPB's Class D topology improve battery life in portable speaker applications compared to Class AB?

Class D amplifiers like LM4663MT/NOPB achieve efficiencies above 85%, compared to roughly 50-65% for Class AB designs, which means significantly less heat and longer battery run time when delivering 2.1 W per channel to speaker loads.

What audio performance does LM4663MT/NOPB deliver in terms of bandwidth and distortion figures?

LM4663MT/NOPB provides a 22 kHz bandwidth that covers the full human audible range (20 Hz to 20 kHz) and achieves 1% total harmonic distortion (THD), making it suitable for voice, music playback, and notification tones in consumer electronics.

What PCB footprint does the 24-pin TSSOP package of LM4663MT/NOPB require compared to a DIP alternative?

The 24-pin TSSOP package has a body width of approximately 4.4 mm and a 0.65 mm pin pitch, occupying roughly 70% less PCB area than an equivalent 24-pin DIP package, which is critical for slim tablet or smartphone audio board layouts.

Is LM4663MT/NOPB compliant with RoHS and REACH requirements for products sold in European markets?

Yes. LM4663MT/NOPB carries Pb-free (NOPB suffix), an e3 JEDEC finish code, and REACH compliance status, meeting all material restrictions for CE-marked audio products sold in the EU and other regulated markets.

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.

Aug 6, 2026

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.

Aug 6, 2026

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.

Aug 4, 2026

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.

Aug 4, 2026

Why Buy from FindMyChip

Authorized Source

Verified supply chain with full traceability & inspection

Competitive Pricing

Factory-direct from China distributors, low MOQ

Fast Shipping

DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide

Quality Guaranteed

30-day replacement for defective parts, no questions asked

About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

View all Texas Instruments parts →

More from Texas Instruments

SN74HC138PWT

Small Outline Packages

Integrated Circuit

MCP6292IDGKT

Small Outline Packages

Integrated Circuit

CD4511BMN

Dual-In-Line Packages

Integrated Circuit

UCC2803DG4

Small Outline Packages

Integrated Circuit

MC33078DRE4

Small Outline Packages

Integrated Circuit

TLV6710DDCT

SOT23 (6-Pin)

Integrated Circuit

AvailabilityIn Stock

Reference Price (USD)

From $1.0200

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
500+	$1.1500	$575.00
1000+	$1.0900	$1090.00
10000+	$1.0200	$10200.00

pcs

Unit price: $1.1500 · Total: $575.00

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”

Rajesh Patel

Procurement Manager, VoltEdge Energy, India

LM4663MT/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

What are the key features of LM4663MT/NOPB?

What is LM4663MT/NOPB used for?

What are the specifications of LM4663MT/NOPB?

Compliance & Regulatory

Where can I find the LM4663MT/NOPB datasheet?

What are equivalent replacements for LM4663MT/NOPB?

Frequently Asked Questions

How does LM4663MT/NOPB's Class D topology improve battery life in portable speaker applications compared to Class AB?

What audio performance does LM4663MT/NOPB deliver in terms of bandwidth and distortion figures?

What PCB footprint does the 24-pin TSSOP package of LM4663MT/NOPB require compared to a DIP alternative?

Is LM4663MT/NOPB compliant with RoHS and REACH requirements for products sold in European markets?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

You May Also Like