UC3843BN STMicroelectronics

Name: UC3843BN
Brand: STMicroelectronics
SKU: UC3843BN_STMicroelectronics
Availability: InStock
Rating: 5 (11 reviews)

UC3843BN electronic component of STMicroelectronics

Images are for reference only, See Product Specifications

X-On Electronics has gained recognition as a prominent supplier of UC3843BN Switching Controllers across the USA, India, Europe, Australia, and various other global locations. UC3843BN Switching Controllers are a product manufactured by STMicroelectronics. We provide cost-effective solutions for Switching Controllers, ensuring timely deliveries around the world.

Part No.	UC3843BN
Manufacturer:	STMicroelectronics
Category:	Switching Controllers
Description:	Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-Mini DIP
Datasheet:	UC3843BN Datasheet (PDF)

Price (USD)

5: USD 0.5268 ea
Line Total: USD 2.63

Availability : 92542

Ship by Tue. 11 Nov to Mon. 17 Nov

Qty Unit Price
5 $ 0.5268
50 $ 0.3064
150 $ 0.2415
500 $ 0.1987
2000 $ 0.1797
5000 $ 0.1682

UC3843BN More Buying Options & Price Grid(s)

Please wait...

Availability

Price (USD)

Buy Price

Quantity

Availability 7760

Ship by Tue. 11 Nov to Mon. 17 Nov

MOQ : 2000
Multiples : 2000

Qty Unit Price
2000 $ 0.4268
4000 $ 0.398

Availability 1048

Ship by Fri. 07 Nov to Tue. 11 Nov

MOQ : 1
Multiples : 1

Qty Unit Price
1 $ 1.05
10 $ 0.7322
25 $ 0.6692
50 $ 0.385
137 $ 0.364

Availability 92542

Ship by Tue. 11 Nov to Mon. 17 Nov

MOQ : 5
Multiples : 5

Qty Unit Price
5 $ 0.5268
50 $ 0.3064
150 $ 0.2415
500 $ 0.1987
2000 $ 0.1797
5000 $ 0.1682

Specifications

Manufacturer

STMicroelectronics STMicroelectronics

Product Category

Switching Controllers Switching Controllers

Topology

Flyback Flyback

Output Current

1 A 1 A

Kind Of Integrated Circuit

Pwm Controller Pwm Controller

Case

Dip8 Dip8

Mounting

Tht Tht

Kind Of Package

TUBE TUBE

Type Of Integrated Circuit

Pmic Pmic

Number Of Channels

1 1

Supply Voltage

8.4 To 36 V 8.4 To 36 V

Power

1.25 W 1.25 W

Operating Temperature

- 25 To 85 C - 25 To 85 C

Operating Voltage

7.6 To 36 V 7.6 To 36 V

Duty Cycle Factor

0...96 % 0...96 %

Frequency

48 - 500 KHz 48 - 500 KHz

Category

Switching Controllers Switching Controllers

Brand Category

Stmicroelectronics Stmicroelectronics

Notes:- Show Stocked Products With Similar Attributes.

UC3843BN Alternative Parts

We are delighted to provide the UC3843BN from our Switching Controllers category, at competitive rates not only in the United States, Australia, and India, but also across Europe and beyond. A long established and extensive electronic component distribution network has enhanced our global reach and dependability, ensuring cost savings through prompt deliveries worldwide. Client satisfaction is at the heart of our business, where every component counts and every customer matters. Our technical service team is ready to assist you. From product selection to after-sales support, we strive to deliver a seamless and satisfying experience. Are you ready to experience the best in electronic component distribution? Contact X-ON Electronics today and discover why X-On are a preferred choice for the UC3843BN and other electronic components in the Switching Controllers category and beyond.

More Products By Manufacturer "Stmicroelectronics"

Image Part-Description

Hot ULN2001A
Driver; darlington, transistor array; 0.5A; 50V; Channels:7; DIP16
Stock : 1865
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot ULN2001D1013TR
Transistors Darlington Seven NPN Array
Stock : 1620
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UC3845BD1
PMIC; PWM controller; 1A; 48-500kHz; Channels:1; SO8; Usup:8.4÷36V
Stock : 319
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UC3844BN
PMIC; PWM controller; 1A; 48-500kHz; Channels:1; DIP8; Usup:16÷36V
Stock : 9615
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UC3844BD1013TR
Switching Controllers 0.5mA Current Mode
Stock : 103040
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UC3844BD1
STMicroelectronics Switching Controllers PWM CONTROLLER
Stock : 8000
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UC3844BNST
IC REG CTRLR PWM CM 8-MINIDIP
Stock : 0
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UC3845BD1013TR
Switching Controllers 0.5mA Current Mode
Stock : 85565
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UC3845BN
Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-Mini DIP
Stock : 55708
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UG1111C-TR
UG1111C-TR
Stock : 0
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

More Products By Category "Switching Controllers"

Image Part-Description

Hot UCC2580D-4
Switching Controllers Single Ended Active Clamp/Reset PWM
Stock : 159
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UCC2807D-1
Boost, Flyback, Forward Converter Regulator Positive Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC
Stock : 0
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UCC2807D-2
Switching Controllers Programmable Maximum Duty Cycle
Stock : 0
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UCC2808AD-2
Switching Controllers Low-Pwr Current-Mode Push-Pull PWM
Stock : 0
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UCC2808AN-1
Switching Controllers Low-Pwr Current-Mode Push-Pull PWM
Stock : 54
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UCC2808APW-2
Push-Pull Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC 8-TSSOP
Stock : 220
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UCC2808D-1
Switching Controllers Low Pwr Current Mode Push-Pull PWM
Stock : 300
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UCC2808D-2
Switching Controllers Low Pwr Current Mode Push-Pull PWM
Stock : 0
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UCC2808DTR-1
Texas Instruments Switching Controllers Low Pwr Current Mode Push-Pull PWM
Stock : 2492
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hot UCC2809DTR-2
Switching Controllers Economy Primary Side Controller
Stock : 0
Large

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Additional Infomation About Product

The UC3843BN with Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-Mini DIP manufactured by STMicroelectronics is a DC-DC controller integrated circuit (IC) with a complex function. It is an efficient step-up/step-down DC-DC controller IC that can provide a controlled output voltage from an unregulated input voltage. The IC can support both boost and flyback topologies, so it can step-up, step-down, and isolate output voltage. The IC also has a low standby power consumption, Under Voltage Lock Out feature and can support many external components to adjust to user needs. The UC3843BN is available in an 8-Pin Mini-DIP package and is suitable for applications such as power supplies, LED drivers, industrial equipment, and motor drives.

HS Compliance

Tariff Desc

8542.31.00 51 No ..Application Specific (Digital) Integrated Circuits (ASIC)

Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
Monolithic integrated circuits:

C-Max may also be referenced as

C-Max (VA)
SG3
ST
ST MICROELECTRONICS
ST2
ST7
STM
STMICRELECTRONICS
STN

3296Y-1-503 Bourns Trimmer – 50K, Multi-Turn, TH Mount

3296Y-1-503 Bourns Trimmer – 50K, Multi-Turn, TH Mount

Jul 15, 2025
3296Y-1-503 by Bourns is a 50K multi-turn trimmer resistor with through-hole mounting. Ideal for precise tuning in analog, sensor, and calibration circuits across all industries.

643075-2 TE Connectivity 2-Position Wire Housing

643075-2 TE Connectivity 2-Position Wire Housing

Jul 9, 2025
643075-2 by TE Connectivity is a 2-position wire housing with 5.08mm pitch, nylon body, and secure locking. Ideal for compact, reliable wire-to-board or wire-to-wire connections.

SA14CA TVS Diodes by Yageo – Surge Protection | Buy Online at XON

SA14CA TVS Diodes by Yageo – Surge Protection | Buy Online at XON

Oct 6, 2025
The SA14CA ESD Protection Diodes / TVS Diodes by Yageo offer reliable bidirectional surge and ESD protection for power, signal, and industrial applications. Ideal for global electronics use.

WJ107-1C-12VDC General Purpose Relays by WJ Relay

WJ107-1C-12VDC General Purpose Relays by WJ Relay

Jan 31, 2025
Explore the WJ107-1C-12VDC General Purpose Relay and NRP07-C12D Miniature Relay by WJ Relay , designed for industrial automation, home appliances, automotive electronics, and smart home systems. With a 12V DC coil, 400-ohm resistance, and 0.36W power consumption , these relays provide reliabl

Request a Quote

Discover the untapped potential of sourcing all your orders with us. We're equipped to handle your larger orders with competitive pricing. Request a quote today.

Part Info

* Initial Quantity Needed Required

* Est. Annual Quantity Needed Required

* Target Price(USD) Required

* Required Turnaround (Days)
Required

Competitor price(USD)

Link To Competitor's Site

* Shipping Country Required

Bought This Part Before

Name Of Currently Approved Vendors

Customer Info

* Name Required

* Email Required

* Phone Required

* Company Required

Company Website

* Industry:
Required

Thank You for Your Request for Quotation (RFQ)

Dear ,

Thank you for submitting your Request for Quotation (RFQ) to us. We appreciate the opportunity to work with you on RFQ.

Our team is currently reviewing the details you provided, and we will get back to you shortly with any additional questions or a quotation. If you have any further information to add or specific requirements, please feel free to reach out to us.

Thank you once again for considering us for your service. We look forward to the possibility of working together.

Best regards,

X-ON Team

Get the Latest News

Required Invalid E-Mail.

Looking for help? Visit our FAQ's Section to answer to all your questions

Resources

Blog
Visual Menu

Best Buys
New Products
New By Manufacturer
Key Interest
Special Locked Prices

Company

About X-ON
X-ON Locations
Kitting

Support

Contact X-ON
Shipping & Return Policy
Help
FAQ's
Track My Order

X-ON Worldwide Electronics

Welcome To X-ON Electronics
For over three decades, we have been advocating and shaping the electronic components industry. Our management complements our worldwide business scope and focus. We are committed to innovation, backed by a strong business foundation. If you need a trustworthy supplier of electronic components for your business – look no further.
+61 8 9358 9358 | sales@x-on.com.au | Chat

Policies | Terms and Conditions | Sitemap

Copyright ©2025 X-ON Electronics Services. All rights reserved.
Please ensure you have read and understood our Terms & Conditions before purchasing. All prices exclude GST.

Qty	Unit Price
5	$ 0.5268
50	$ 0.3064
150	$ 0.2415
500	$ 0.1987
2000	$ 0.1797
5000	$ 0.1682

Image	Part-Description
Hot	ULN2001A Driver; darlington, transistor array; 0.5A; 50V; Channels:7; DIP16 Stock : 1865 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	ULN2001D1013TR Transistors Darlington Seven NPN Array Stock : 1620 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UC3845BD1 PMIC; PWM controller; 1A; 48-500kHz; Channels:1; SO8; Usup:8.4÷36V Stock : 319 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UC3844BN PMIC; PWM controller; 1A; 48-500kHz; Channels:1; DIP8; Usup:16÷36V Stock : 9615 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UC3844BD1013TR Switching Controllers 0.5mA Current Mode Stock : 103040 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UC3844BD1 STMicroelectronics Switching Controllers PWM CONTROLLER Stock : 8000 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UC3844BNST IC REG CTRLR PWM CM 8-MINIDIP Stock : 0 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UC3845BD1013TR Switching Controllers 0.5mA Current Mode Stock : 85565 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UC3845BN Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-Mini DIP Stock : 55708 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UG1111C-TR UG1111C-TR Stock : 0 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Image	Part-Description
Hot	UCC2580D-4 Switching Controllers Single Ended Active Clamp/Reset PWM Stock : 159 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UCC2807D-1 Boost, Flyback, Forward Converter Regulator Positive Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC Stock : 0 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UCC2807D-2 Switching Controllers Programmable Maximum Duty Cycle Stock : 0 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UCC2808AD-2 Switching Controllers Low-Pwr Current-Mode Push-Pull PWM Stock : 0 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UCC2808AN-1 Switching Controllers Low-Pwr Current-Mode Push-Pull PWM Stock : 54 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UCC2808APW-2 Push-Pull Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC 8-TSSOP Stock : 220 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UCC2808D-1 Switching Controllers Low Pwr Current Mode Push-Pull PWM Stock : 300 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UCC2808D-2 Switching Controllers Low Pwr Current Mode Push-Pull PWM Stock : 0 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UCC2808DTR-1 Texas Instruments Switching Controllers Low Pwr Current Mode Push-Pull PWM Stock : 2492 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Hot	UCC2809DTR-2 Switching Controllers Economy Primary Side Controller Stock : 0 Large This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.