UC3843D Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Texas Instruments UC3843D, PWM Current Mode Controller, 1 A, 500 kHz 14-Pin SOIC

ACTIVEIntegrated CircuitVerified May 2026
Package / Visual Reference
UC3843DSmall Outline Packages
Quick Facts
Manufacturer
Texas Instruments
Package
Small Outline Packages
Pin Count
14
Lifecycle
ACTIVE
Category
Integrated Circuit
Price
From $0.3650(MOQ 1)
Temp Range
?°C to 70.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

Specifications

Pbfree CodeYes
YTEOL15
Analog IC - Other TypeSWITCHING CONTROLLER
Control ModeCURRENT-MODE
Control TechniquePULSE WIDTH MODULATION
Input Voltage-Max28V
Input Voltage-Min8.2V
Input Voltage-Nom15V
JESD-30 CodeR-PDSO-G14
JESD-609 Codee4
Number of Functions1
Output Current-Max1A
Output Voltage-Nom2.5V
Package Body MaterialPLASTIC/EPOXY
Package Equivalence CodeSOP14,.25
Package ShapeRECTANGULAR
Package StyleSMALL OUTLINE
Peak Reflow Temperature (Cel)260
Qualification StatusNot Qualified
Supply Current-Max (Isup)25mA
Supply Voltage-Max (Vsup)28V
Supply Voltage-Min (Vsup)8.4V
Surface MountYES
Switcher ConfigurationBUCK-BOOST
Switching Frequency-Max500kHz
TechnologyBIPOLAR
Temperature GradeCOMMERCIAL
Terminal FinishNickel/Palladium/Gold (Ni/Pd/Au)
Terminal FormGULL WING
Terminal Pitch1.27mm
Terminal PositionDUAL
Time@Peak Reflow Temperature-Max (s)30
## UC3843D Alternates Showing resultsImage
PackageSmall Outline Packages

Compliance & Regulatory

RoHS StatusCompliant
Moisture Sensitivity LevelMSL 1
ECCNEAR99
HTS Code8542.39.00.90
Country of OriginMexico

Datasheet

UC3843D Datasheet Download

Official datasheet from Texas Instruments

Alternate & Equivalent Parts

Compatible alternatives and drop-in replacements for UC3843D:

UC3843DG4Texas Instruments

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14

View Part →
UC3842DTexas Instruments

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14

View Part →
UC3845DTexas Instruments

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14

View Part →
UC3842D8Texas Instruments

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BICMOS, PDSO8

View Part →
UC3844ADTexas Instruments

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14

View Part →

Frequently Asked Questions

What is the price of UC3843D?

UC3843D is priced from $0.3650 USD depending on quantity. Submit an RFQ on FindMyChip for the best current pricing from authorized China distributors.

Is UC3843D in stock?

UC3843D is currently available at FindMyChip. We maintain stock from authorized distributors and ship worldwide with typical 3-7 business day lead time.

Where can I buy UC3843D?

You can buy UC3843D from FindMyChip, a B2B electronic component platform sourcing from China distributors. We offer competitive pricing and low MOQ for UC3843D from Texas Instruments.

What is the datasheet for UC3843D?

The official UC3843D datasheet from Texas Instruments contains full specifications including pin configuration, electrical characteristics, and application notes. Download it directly from the datasheet section above.

What package does UC3843D come in?

UC3843D is available in Small Outline Packages packaging. See the package diagram and pinout above for detailed dimensional information.

Related Guides

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.

AvailabilityIn Stock
Reference Price (USD)
From $0.3650
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
1+$0.7300$0.73
8+$0.5840$4.67
35+$0.3650$12.78
pcs
Unit price: $0.7300 · Total: $0.73

In Stock · 24h Response · Worldwide Shipping

Lead Time3-7 business days
MOQFrom 1 piece
ShippingDHL / FedEx / UPS
OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.

TM
Thomas Mueller
Hardware Lead, SensorTech GmbH, Germany