What is CAT4139TD-GT3?
CAT4139TD-GT3 is a PMIC - LED Drivers component from ON Semiconductor. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
Supply original CAT4139TD-GT3, PMIC - LED Drivers, by ON Semiconductor
IC LED DRIVER RGLTR DIM TSOT23-5
RoHS
Datasheet
Pictures are for reference only. Please contact us for the latest pictures.
Key specifications
Serise
-
Min Quantity
1
Category
Integrated Circuits (ICs)Sub Categroy
PMIC - LED DriversDescription
IC LED DRIVER RGLTR DIM TSOT23-5
key Attributes
-
Technical document
Open The Official Datasheet
Review the latest datasheet for CAT4139TD-GT3 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.
Authenticity Verification
CoC Available on Request
Pre-Shipment Inspection
Responsive RFQ Support
Why buyers trust this sourcing flow
Our quality workflow is designed to reduce counterfeit risk and support confident procurement. Components are reviewed through documented handling and inspection steps so buyers can evaluate sourcing with stronger authenticity controls.
Structured product content
Review The Product The Way Buyers Actually Evaluate It
Jump between overview, specs, and related sourcing content without scanning one long uninterrupted page.
Product overview
Overview
The CAT4101 is a constant−current sink driving a string of high−brightness LEDs up to 1 A with very low dropout of 0.5 V at full load. It requires no inductor, provides a low noise operation and minimizes the number of components.
The LED current is set by an external resistor connected to the RSET pin.
The LED pin is compatible with high voltage up to 25 V, allowing the driving of long strings of LEDs.
The device ensures an accurate and regulated current in the LEDs independent of supply and LED forward voltage variation.
Features
• Accurate 1 A Current Sink
• Up to 25 V Operation on LED Pin
• Low Dropout 500 mV at 1 A
• LED Current Set by External Resistor
• High Resolution PWM Dimming via EN/PWM
• “Zero” Current Shutdown Mode
•
Thermal Shutdown Protection
• TO−263 5−lead Package
•
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS CompliantApplications
• High Power LED up to 1 A
• Architectural and General Lighting
• Automotive Lighting
Full technical breakdown
Detailed Specifications
Review grouped attributes and parameters without scanning one oversized table.
Fast scan
Popular Specs Surfaced First
Product Parameter
Internal Switch(S)
Yes
Product Parameter
Multiplexed Display Capability
NO
Product Parameter
Topology
Step-Up (Boost)
Product Parameter
Dimming
Analog, PWM
Product Parameter
Power Supplies
3.6V
Product Parameter
Current - Output / Channel
750mA Switch
Internal Switch(S)
Yes
Multiplexed Display Capability
NO
Topology
Step-Up (Boost)
Dimming
Analog, PWM
Power Supplies
3.6V
Current - Output / Channel
750mA Switch
Number Of Segments
27
Voltage - Supply (Min)
2.2V
Voltage - Output
22V
Part Status
Active
Published
2008
REACH Status
REACH Unaffected
ECCN
EAR99
Lead Free
Lead Free
Factory Lead Time
9 Weeks
Lifecycle Status
ACTIVE (Last Updated: 2 days ago)
Mounting Type
Surface Mount
Packaging
Tape & Reel (TR)
Halogen Free
Halogen Free
Categories
Integrated Circuits (ICs)
Max Input Voltage
5.5V
Terminal Position
DUAL
Peak Reflow Temperature (Cel)
260
Terminal Form
GULL WING
Technology
CMOS
Operating Temperature
-40°C~85°C TA
Max Junction Temperature (Tj)
150°C
Current Rating
300mA
Manufacturer
ON Semiconductor
Package / Case
SOT-23-5 Thin, TSOT-23-5
Contact Plating
Gold
Number Of Functions
1
Radiation Hardening
No
Reflow Temperature-Max (S)
40
Mount
Surface Mount
Pbfree Code
yes
Number Of Outputs
1
Number Of Pins
5
Number Of Terminations
5
Pin Count
5
Length
2.9mm
Max Supply Voltage
5.5V
Output Current Per Channel
20mA
Supply Voltage
3.6V
Height
1mm
Ambient Temperature Range High
85°C
Nominal Supply Current
600μA
Max Supply Current
1.5mA
Max Output Voltage
24V
Type
DC DC Regulator
Sub-Categories
PMIC - LED Drivers
Applications
Backlight
Subcategory
Display Drivers
Switching Frequency
1MHz
Min Input Voltage
2.8V
Base Part Number
CAT4139
Manufacturer'S Part No.
CAT4139TD-GT3
High Level Output Current
750mA
Output Current
180mA
Moisture Sensitivity Level (MSL)
1 (Unlimited)
RoHS Status
ROHS3 Compliant
REACH SVHC
No SVHC
JESD-609 Code
e4
HTSUS
8542.39.0001
ECCN Code
EAR99
Common questions
Product FAQ
Quick answers for buyers reviewing CAT4139TD-GT3, stock, documentation, and sourcing steps.
What package and description are listed for CAT4139TD-GT3?
CAT4139TD-GT3 is listed with package reference SOT-23-5. The current product description is IC LED DRIVER RGLTR DIM TSOT23-5, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is CAT4139TD-GT3 available in stock?
This page currently shows 27622 units in stock and 11605 units available for CAT4139TD-GT3. 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 CAT4139TD-GT3?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for CAT4139TD-GT3 by ON Semiconductor. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for CAT4139TD-GT3?
Yes. This page links to the datasheet for CAT4139TD-GT3 by ON Semiconductor, so engineers and buyers can review package, ratings, and application details before purchase.
How should buyers verify CAT4139TD-GT3 before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for CAT4139TD-GT3 before approving the order.
PMIC - LED Drivers
Recommended Products
Explore more parts from the same subcategory to compare fit, stock, and sourcing options.
CAT4238TD-GT3
204 purchased
SOT-23-5
RoHS
Datasheet
IC LED DRIVER RGLTR DIM TSOT23-5
Reference price
$2.30Add to RFQ list
FL7701MX
173 purchased
SOIC
RoHS
Datasheet
IC LED DRIVER OFFLINE DIM 8SO
Reference price
$0.81Add to RFQ list
More sourcing insights
Articles
Jun 29, 2026
Wolfspeed SiC supply continuity 2026: a buyer's framework for second-source qualification
wolfspeedsicsupply-continuitysecond-source
How Wolfspeed's 2026 SiC supply story changes procurement decisions — what to lock-buy, where to qualify a second source, and the MPN-level continuity boundaries that actually matter.
Jun 25, 2026
MOSFET Selection Guide for Power Design: A Buyer's Framework for Voltage Class, Losses, Package, and Sourcing Risk
MOSFETpower designselection guideTO-220
A practical MOSFET selection guide for power design teams covering voltage class, Rds(on), gate charge, package thermal limits, and sourcing-safe alternative logic.
Jun 19, 2026
Vishay, Onsemi & Infineon 2026 MOSFET Shortage — A Buyer's Framework
mosfetshortageallocationpower-semiconductor
2026 Vishay, Onsemi and Infineon power MOSFET shortage buyer framework: part-family risk matrix, datasheet-verified alternatives, and three procurement actions to act on before Infineon's July price increase.