Get a Sample
Request engineering samples to evaluate fit, validate alternatives, and keep design decisions moving before a larger order is placed.
Request evaluation samplesUC2843BDG PMIC - Voltage Regulators - DC DC Switching Controllers by ON Semiconductor
UC2843BDG is a PMIC - Voltage Regulators - DC DC Switching Controllers model from ON Semiconductor, presented on TrustCompo for buyers who need clear sourcing and review context before RFQ. This listing sits in the Integrated Circuits (ICs) / PMIC - Voltage Regulators - DC DC Switching Controllers product path. Known package information currently points to 14SOIC under the ON Semiconductor brand listing. IC REG CTRLR FLYBACK 14SOIC. TrustCompo combines the available model, brand, hierarchy, and specification details around UC2843BDG so buyers can move faster from review to quotation.
RoHS
Datasheet
Pictures are for reference only. Please contact us for the latest pictures.
Traceability and authenticity checks
Fast RFQ turnaround
Documentation support
Pre-shipment inspection review
Key specifications
Series
-
Min Quantity
1
Category
Integrated Circuits (ICs)Description
IC REG CTRLR FLYBACK 14SOIC
key Attributes
-
Datasheet
View UC2843BDG DatasheetTechnical document
Open The Official Datasheet
Review the latest datasheet for UC2843BDG from ON Semiconductor in a separate tab so engineers and buyers can check package, electrical characteristics, and application details without leaving this product page.
Why request a quote
Use the RFQ step to confirm the commercial and documentation details buyers usually need before placing an order.
Confirm stock and lead-time expectations
Check CoC or traceability support
Align inspection and fulfillment details
Trust signals
Globally recognized certifications
Visible certifications work best when they are paired with clear operational promises around traceability, handling, and inspection.
ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
Ordering workflow
Understand how to order and what policies support the purchase
Use this section to see the fastest ordering path and the policy pages buyers usually review before confirming a component order.
How to order this product
A simple B2B flow helps engineering and procurement teams move from part review to commercial confirmation.
1
Confirm part and quantity
Review the part number, package, key specs, and target quantity so the quote request reflects the exact sourcing scope your team needs.
2
Send RFQ or sample request
Use Quick Quote for commercial pricing or Request Sample when engineering validation is still in progress and a smaller evaluation quantity is needed.
3
Align delivery, payment, and documentation
Before final release, confirm stock timing, shipment method, payment arrangement, and any traceability or inspection documents required by your process.
Policies buyers usually check
These pages explain the operating rules around samples, shipping, payment, and quality support before you place the order.
Shipping & Delivery
Review shipping origin, carrier options, delivery methods, and the practical factors that affect transit timing for global component orders.
Review shipping detailsPayment Terms
Understand supported payment methods, invoice handling, quote currency, and the commercial boundaries used for international B2B orders.
Review payment termsQuality & Traceability Center
See how incoming inspection, outgoing verification, traceability support, certifications, and additional testing fit into our quality workflow.
Review quality controlsStructured product content
Review The Product The Way Buyers Actually Evaluate It
Review overview, detailed specifications, and related sourcing content in one structured flow without scanning separate oversized sections.
Product overview
Overview
High Performance Current Mode Controllers
The UC3842B, UC3843B series are high performance fixed frequency current mode controllers.
They are specifically designed for Off−Line and DC−DC converter applications offering the designer a cost−effective solution with minimal external components.
These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
Features
• Trimmed Oscillator for Precise Frequency Control
• Oscillator Frequency Guaranteed at 250 kHz
• Current Mode Operation to 500 kHz
• Automatic Feed Forward Compensation
• Latching PWM for Cycle−By−Cycle Current Limiting
• Internally Trimmed Reference with Undervoltage Lockout
• High Current Totem Pole Output
• Undervoltage Lockout with Hysteresis
• Low Startup and Operating Current
• Pb−Free Packages are Available
The UC3842B, UC3843B series are high performance fixed frequency current mode controllers.
They are specifically designed for Off−Line and DC−DC converter applications offering the designer a cost−effective solution with minimal external components.
These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
Features
• Trimmed Oscillator for Precise Frequency Control
• Oscillator Frequency Guaranteed at 250 kHz
• Current Mode Operation to 500 kHz
• Automatic Feed Forward Compensation
• Latching PWM for Cycle−By−Cycle Current Limiting
• Internally Trimmed Reference with Undervoltage Lockout
• High Current Totem Pole Output
• Undervoltage Lockout with Hysteresis
• Low Startup and Operating Current
• Pb−Free Packages are Available
Fast scan
Popular Specs Surfaced First
Product Attribute
Part Status
Active
Product Attribute
Published
2008
Product Attribute
Lead Free
Lead Free
Product Attribute
Packaging
Tube
Product Attribute
Lifecycle Status
ACTIVE (Last Updated: 3 days ago)
Product Attribute
Mounting Type
Surface Mount
Part Status
Active
Published
2008
Lead Free
Lead Free
Packaging
Tube
Lifecycle Status
ACTIVE (Last Updated: 3 days ago)
Mounting Type
Surface Mount
Width
3.9878mm
Halogen Free
Halogen Free
Categories
Integrated Circuits (ICs)
Terminal Position
DUAL
Peak Reflow Temperature (Cel)
260
Terminal Form
GULL WING
Factory Lead Time
2 Weeks
Manufacturer
ON Semiconductor
Operating Temperature
-25°C~85°C TA
Subcategory
Switching Regulator or Controllers
Package / Case
14-SOIC (0.154, 3.90mm Width)
Number Of Pins
14
Number Of Terminations
14
Mount
Surface Mount
Pbfree Code
yes
Technology
BIPOLAR
Number Of Outputs
1
Output Current
200mA
Height
1.4986mm
Length
8.7376mm
Max Supply Current
30mA
Synchronous Rectifier
No
Output Type
Transistor Driver
Sub-Categories
PMIC - Voltage Regulators - DC DC Switching Controllers
Data Rate (Max)
PULSE WIDTH MODULATION
Serial Interfaces
SINGLE
Contents
50 ns
Output Voltage
13.4V
Display & Interface Controllers
Step-Up, Step-Up/Step-Down
Input Bias Current
-2μA
ESD Protection
Boost, Flyback
Frequency
52kHz
Base Part Number
UC284*B
Power Dissipation
862mW
Manufacturer'S Part No.
UC2843BDG
JESD-609 Code
e3
RoHS Status
ROHS3 Compliant
REACH SVHC
No SVHC
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN Code
EAR99
Terminal Finish
Tin (Sn)
Output Configuration
Positive
Analog IC - Other Type
SWITCHING CONTROLLER
Time@Peak Reflow Temperature-Max (S)
40
Rise Time
50ns
Control Features
Frequency Control
Function
CURRENT-MODE
Voltage - Supply (Vcc/Vdd)
7.6V~30V
Frequency - Switching
Up to 500kHz
RF Family\/Standard
15V
Input Voltage (Max)
25V
Number Of Backplanes
96 %
Common questions
Product FAQ
Quick answers for buyers reviewing UC2843BDG, stock, documentation, and sourcing steps.
What is UC2843BDG?
UC2843BDG is a PMIC - Voltage Regulators - DC DC Switching Controllers component from ON Semiconductor. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
What package and description are listed for UC2843BDG?
UC2843BDG is listed with package reference 14SOIC. The current product description is IC REG CTRLR FLYBACK 14SOIC, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is UC2843BDG available in stock?
This page currently shows 14142 units in stock and 11074 units available for UC2843BDG. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Can I request a quote or sample for UC2843BDG?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for UC2843BDG by ON Semiconductor. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for UC2843BDG?
Yes. This page links to the datasheet for UC2843BDG by ON Semiconductor, so engineers and buyers can review package, ratings, and application details before purchase.
How should buyers verify UC2843BDG before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for UC2843BDG before approving the order.
PMIC - Voltage Regulators - DC DC Switching Controllers
Recommended Products
Explore more parts from the same subcategory to compare fit, stock, and sourcing options.
More sourcing insights
Articles
Explore related articles around UC2843BDG, PMIC - Voltage Regulators - DC DC Switching Controllers, and adjacent sourcing decisions so buyers can compare context before moving from evaluation to RFQ.
Jul 17, 2026
FPGA Supply 2026: A Buyer's Framework for AMD Xilinx, Intel Altera, Microchip, and Lattice SourcingA production-BOM FPGA sourcing guide for 2026 covering lifecycle commitment, redesign cost, and qualification boundaries across AMD Xilinx, Intel Altera, Microchip PolarFire, and Lattice families.
FPGAAMD XilinxIntel Altera
Jul 11, 2026
2026 Q3 Wide-Bandgap Power Read: Where SiC Is Scaling, Where GaN Is Winning, and Why Silicon Still MattersA Q3 2026 read on SiC, GaN, and silicon power semiconductors: where wide-bandgap devices are winning now, where silicon still holds, and what engineers and sourcing teams should watch.
wide-bandgap semiconductorsSiCGaN
Jul 8, 2026
Texas Instruments Lead Time and Price Pressure in 2026: What Analog and Power Buyers Should Do NowA buyer-facing framework for Texas Instruments analog and power IC exposure in 2026, covering what is confirmed, where price and lead-time pressure is most likely to show up, and which actions sourcing teams should take first.
Texas Instrumentsanalog ICpower management IC