LM2678SD-ADJ Texas Instruments Integrated Circuit (Other) In Stock

Name: LM2678SD-ADJ
Brand: Texas Instruments
SKU: LM2678SD-ADJ
Availability: InStock

LM2678SD-ADJ is a Simple Switcher step-down voltage regulator IC with adjustable output, 8V–40V input range, and pulse width modulation control. From $2.78, in stock worldwide shipping.

OBSOLETEIntegrated CircuitVerified May 2026

Package / Visual Reference

LM2678SD-ADJOther

Quick Facts

Manufacturer: Texas Instruments
Package: Other
Pin Count: 14
Lifecycle: OBSOLETE
Datasheet: LM2678SD-ADJ Datasheet PDF
Category: Integrated Circuit
Price: From $2.7800(MOQ 1)
Temp Range: -40.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LM2678SD-ADJ?

Adjustable output voltage with wide 8V to 40V input range
Voltage-mode PWM control for stable regulation
Single-function step-down switching regulator in compact SO-14 package
Supports up to 40V input for industrial and automotive applications

What is LM2678SD-ADJ used for?

The LM2678SD-ADJ is widely used in industrial power supplies, automotive electronics, and distributed power systems requiring efficient DC-DC step-down conversion. Its wide input voltage range makes it suitable for battery-powered equipment and 24V/12V bus regulation. Typical applications include embedded systems power management, telecom equipment, and bench-top instruments.

What are the specifications of LM2678SD-ADJ?

YTEOL	0
Analog IC - Other Type	SWITCHING REGULATOR
Control Mode	VOLTAGE-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	40V
Input Voltage-Min	8V
Input Voltage-Nom	12V
JESD-30 Code	R-XDSO-N14
JESD-609 Code	e0
Number of Functions	1
Output Current-Max	8.75A
Output Voltage-Max	1.234V
Output Voltage-Min	1.186V
Output Voltage-Nom	1.21V
Package Body Material	UNSPECIFIED
Package Equivalence Code	SOLCC14,.2,32
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Surface Mount	YES
Switcher Configuration	BUCK
Switching Frequency-Max	280kHz
Technology	BICMOS
Temperature Grade	AUTOMOTIVE
Terminal Finish	Tin/Lead (Sn/Pb)
Terminal Form	NO LEAD
Terminal Pitch	0.8mm
Terminal Position	DUAL
## LM2678SD-ADJ Alternates Showing results	Image
Package	Other

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.60

Where can I find the LM2678SD-ADJ datasheet?

LM2678SD-ADJ Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM2678SD-ADJ?

Compatible alternatives and drop-in replacements for LM2678SD-ADJ:

LM2678SDX-ADJNational Semiconductor Corporation

Switching Regulator, Voltage-mode, 8.75A, 280kHz Switching Freq-Max

View Part →

SRP1265A-330M

suggested

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What is the input voltage range of the LM2678SD-ADJ?

The LM2678SD-ADJ supports an input voltage range from 8V to 40V, with a nominal operating voltage of 12V, making it suitable for a wide variety of industrial and automotive power supply designs.

What control technique does the LM2678SD-ADJ use?

The LM2678SD-ADJ uses voltage-mode pulse width modulation (PWM) as its control technique, which provides stable output regulation and predictable loop compensation for step-down (buck) converter designs.

What package is the LM2678SD-ADJ available in?

The LM2678SD-ADJ is available in a 14-pin small outline (SO-14 / R-XDSO-N14) package, offering a compact footprint suitable for space-constrained PCB layouts in switching regulator applications.

What are typical applications for the LM2678SD-ADJ?

Typical applications include industrial power supplies, automotive electronics, embedded system power management, telecom equipment, and any design requiring efficient adjustable-output step-down voltage regulation from an 8V to 40V source.

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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.

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AvailabilityIn Stock

Reference Price (USD)

From $2.7800

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$6.1500	$6.15
40+	$5.9466	$237.86
100+	$4.6200	$462.00
500+	$3.1200	$1560.00
1000+	$2.9500	$2950.00
10000+	$2.7800	$27800.00

pcs

Unit price: $6.1500 · Total: $6.15

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

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Procurement Manager, VoltEdge Energy, India

LM2678SD-ADJ Texas Instruments Integrated Circuit (Other) In Stock

What are the key features of LM2678SD-ADJ?

What is LM2678SD-ADJ used for?

What are the specifications of LM2678SD-ADJ?

Compliance & Regulatory

Where can I find the LM2678SD-ADJ datasheet?

What are equivalent replacements for LM2678SD-ADJ?

Frequently Asked Questions

What is the input voltage range of the LM2678SD-ADJ?

What control technique does the LM2678SD-ADJ use?

What package is the LM2678SD-ADJ available in?

What are typical applications for the LM2678SD-ADJ?

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

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