UC3874DW-2G4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Name: UC3874DW-2G4
Brand: Texas Instruments
SKU: UC3874DW-2G4
Availability: InStock

The UC3874DW-2G4 is a high-efficiency synchronous step-down (buck) switching controller from Texas Instruments in an 18-pin SOIC package. It operates with current-mode control and pulse width modulation, supporting input voltages from 12 V to 36 V for versatile power supply designs. Available with worldwide shipping from authorized distributors.

OBSOLETEIntegrated CircuitVerified May 2026

Package / Visual Reference

UC3874DW-2G4Small Outline Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline Packages
Pin Count: 18
Lifecycle: OBSOLETE
Datasheet: UC3874DW-2G4 Datasheet PDF
Category: Integrated Circuit
Temp Range: ?°C to 70.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of UC3874DW-2G4?

Current-mode PWM control with synchronous rectification for high conversion efficiency in buck topologies
Wide input voltage range of 12 V to 36 V supports diverse DC-DC power supply designs
18-pin SOIC package (JESD-30 R-PDSO-G18) with RoHS-compliant e4 rating for modern manufacturing requirements

What is UC3874DW-2G4 used for?

The UC3874DW-2G4 is designed for use in high-efficiency synchronous buck DC-DC converters found in telecom power supplies, industrial equipment, and server power systems. Its current-mode PWM control enables fast transient response and tight output voltage regulation under varying load conditions. It is also suited for point-of-load (POL) converters in embedded computing and networking infrastructure.

What are the specifications of UC3874DW-2G4?

Pbfree Code	Yes
YTEOL	0
Analog IC - Other Type	SWITCHING CONTROLLER
Control Mode	CURRENT-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	36V
Input Voltage-Min	12V
Input Voltage-Nom	12V
JESD-30 Code	R-PDSO-G18
JESD-609 Code	e4
Number of Functions	1
Output Current-Max	1A
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOP18,.4
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Supply Current-Max (Isup)	12mA
Surface Mount	YES
Switcher Configuration	PUSH-PULL
Switching Frequency-Max	300kHz
Technology	BIPOLAR
Temperature Grade	COMMERCIAL
Terminal Finish	NICKEL PALLADIUM GOLD
Terminal Form	GULL WING
Terminal Pitch	1.27mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 2
ECCN	EAR99
HTS Code	8542.39.00.60

Where can I find the UC3874DW-2G4 datasheet?

UC3874DW-2G4 Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for UC3874DW-2G4?

Compatible alternatives and drop-in replacements for UC3874DW-2G4:

UC2874DW-2

Rochester Electronics LLC 1A SWITCHING CONTROLLER, 300kHz SWITCHING FREQ-MAX, PDSO18, GREEN, SOIC-18

View Part →

UC3874DW-2Texas Instruments

Switching Controller, Current-mode, 1A, 300kHz Switching Freq-Max, BIPolar, PDSO18

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

Which power-conversion designs fit UC3874DW-2G4 best?

UC3874DW-2G4 is a switching controller for synchronous step-down supplies, with current-mode PWM control and a fetched input range of 12 V to 36 V.

How should layout teams account for the package on this controller?

The record identifies an 18-pin SOIC-style small-outline package, so designers should verify the R-PDSO-G18 footprint, pin escape, and controller placement before PCB release.

Which compliance details help qualify UC3874DW-2G4 for a BOM?

The fetched data lists Pb-free status and JESD-609 e4 finish information, while the 12 V nominal input point should match the intended supply architecture.

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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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UC3874DW-2G4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

What are the key features of UC3874DW-2G4?

What is UC3874DW-2G4 used for?

What are the specifications of UC3874DW-2G4?

Compliance & Regulatory

Where can I find the UC3874DW-2G4 datasheet?

What are equivalent replacements for UC3874DW-2G4?

Frequently Asked Questions

Which power-conversion designs fit UC3874DW-2G4 best?

How should layout teams account for the package on this controller?

Which compliance details help qualify UC3874DW-2G4 for a BOM?

Related Guides

STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply

STM32H725IGT3 High-Performance MCU Design Guide

150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing

STEF05SGR 5 V eFuse Protection Design Guide

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

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