UC3842ADW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Name: UC3842ADW
Brand: Texas Instruments
SKU: UC3842ADW
Availability: InStock

UC3842ADW is a current-mode PWM switching controller IC from Texas Instruments, supporting 28V input voltage and pulse width modulation control. Available in 16-pin SOIC package. From $0.77 in stock with worldwide shipping.

ACTIVEIntegrated CircuitVerified Apr 2026

Package / Visual Reference

UC3842ADWSmall Outline Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline Packages
Pin Count: 16
Lifecycle: ACTIVE
Datasheet: UC3842ADW Datasheet PDF
Category: Integrated Circuit
Price: From $0.7721(MOQ 1)
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 UC3842ADW?

Current-mode PWM control for improved line regulation and simpler compensation
Wide input voltage range: 11.5V to 28V, suitable for diverse power supply designs
16-pin Small Outline (SOIC) package for compact PCB integration
Built-in oscillator with programmable frequency via external R/C components
Undervoltage lockout and cycle-by-cycle current limiting for reliable protection

What is UC3842ADW used for?

UC3842ADW is widely used in switch-mode power supply (SMPS) designs such as offline flyback converters, forward converters, and DC-DC regulators. It is ideal for industrial power systems, consumer electronics adapters, and battery chargers where current-mode control and accurate PWM regulation are essential.

What are the specifications of UC3842ADW?

Pbfree Code	Yes
YTEOL	15
Analog IC - Other Type	SWITCHING CONTROLLER
Control Mode	CURRENT-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	28V
Input Voltage-Min	11.5V
Input Voltage-Nom	15V
JESD-30 Code	R-PDSO-G16
JESD-609 Code	e4
Number of Functions	1
Output Current-Max	1A
Output Voltage-Max	5.1V
Output Voltage-Min	4.9V
Output Voltage-Nom	5V
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOP16,.4
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Supply Current-Max (Isup)	25mA
Supply Voltage-Max (Vsup)	28V
Supply Voltage-Min (Vsup)	16V
Supply Voltage-Nom (Vsup)	11V
Surface Mount	YES
Switcher Configuration	BUCK-BOOST
Switching Frequency-Max	500kHz
Technology	BIPOLAR
Temperature Grade	COMMERCIAL
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
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	8542.39.00.90

Where can I find the UC3842ADW datasheet?

UC3842ADW Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for UC3842ADW?

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

Frequently Asked Questions

What is the input voltage range of UC3842ADW?

The UC3842ADW operates with an input voltage range of 11.5V to 28V, with a nominal operating voltage of 15V. This makes it suitable for a wide range of AC/DC and DC/DC power supply topologies.

What type of control does UC3842ADW use?

UC3842ADW uses current-mode control combined with pulse width modulation (PWM). This technique improves line transient response, simplifies loop compensation, and provides inherent cycle-by-cycle current limiting for enhanced reliability.

What package is UC3842ADW available in?

UC3842ADW comes in a 16-pin Small Outline (SOIC) package (JESD-30 code: R-PDSO-G16), which is RoHS compliant (Pb-free). This compact surface-mount package is well-suited for high-density PCB designs.

What are typical applications for UC3842ADW?

UC3842ADW is commonly used in offline flyback converters, forward converters, and DC-DC regulators for industrial power supplies, consumer electronics chargers, and battery management systems where stable PWM switching control is required.

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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 $0.7721

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$1.2700	$1.27
10+	$0.9200	$9.20
40+	$0.8500	$34.00
280+	$0.8482	$237.50
520+	$0.8190	$425.88
1000+	$0.7721	$772.10

pcs

Unit price: $1.2700 · Total: $1.27

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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UC3842ADW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

What are the key features of UC3842ADW?

What is UC3842ADW used for?

What are the specifications of UC3842ADW?

Compliance & Regulatory

Where can I find the UC3842ADW datasheet?

What are equivalent replacements for UC3842ADW?

Frequently Asked Questions

What is the input voltage range of UC3842ADW?

What type of control does UC3842ADW use?

What package is UC3842ADW available in?

What are typical applications for UC3842ADW?

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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