Overview
The SC419 is a synchronous buck power supply controller. It features a bootstrap switch in a space-saving MLPQ- 3x3mm 20-pin package. The device is highly effi cient and uses minimal PCB area. It uses pseudo-fi xed frequency adaptive on-time operation to provide fast transient response.
Packaging
- MLPQ-20
Order Codes
- SC419ULTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
- SC419EVBL: SC419 Evaluation Board
PB Free/ROHS
Learn More →Features
- Input voltage — 3V to 28V
- Integrated bootstrap switch
- Smart power-save protection
- TC compensated RDS(ON)
- Pseudo-fi xed frequency adaptive on-time control
- Designed for use with ceramic capacitors
- Programmable VIN UVLO threshold
- Enable input
- Selectable power-save mode
- Programmable ultra-sonic power-save
- Internal soft-start and soft-shutdown at output
- Internal reference — 1% tolerance
- Over-voltage/under-voltage fault protection
- Power good output
- SmartDrive™
- Lead-free 3x3mm, 20-Pin MLPQ package
- Fully WEEE and RoHS compliant
| Documents | Release Date | Type |  |
|---|---|---|---|
| SC419 Datasheet | 2018-12-13 | | |
| EcoSpeed DC-DC Converters Product Brief | 2019-06-29 | | |
Applications
- Notebook, desktop, tablet, and server computers
- Networking and telecommunication equipment
- Printers, DSL, and STB applications
- Embedded applications
- Power supply modules
- Point of load power supplies
Inventory
| Product | Country | Distributor | Qty | Buy |
|---|
Resources
.jpg)
.png)
Safeguarding Forests: How Dryad's Silvanet…
Part 2: Getting up and running with LoRa…
Part 1: Introduction to LoRa Basics™ Modem-E
Low-Power 1.6T Datacom Transceivers and the…
CES 2025 - Semtech SurgeSwitch Demo…
LoRa-CES 2025 LoRa Demo-Advancing LoRa…
In Parts 1 and 2 of our micromobility blog series, we explored the micromobility market opportunity and the critical power and protection technologies driving e-bike innovation. Today, we're looking at perhaps the most transformative aspect of modern e-bikes: connectivity.
BLOG
Part 3 - The Future of Connected Micromobility:…
In our previous post, we explored the explosive growth of the micromobility market and the immense opportunities it presents. Today, we're diving into the critical technologies that separate market-leading e-bikes from the competition.
BLOG
Part 2 - The Critical Technologies Driving E-Bike…
In an increasingly urbanized world grappling with traffic congestion and environmental concerns, micromobility solutions are experiencing unprecedented growth. At the forefront of this revolution? Electric bikes.
BLOG
Part 1 - The Micromobility Revolution: Is Your…
The IoT Solutions World Congress 2025 in Barcelona showcased the transformative power of LoRaWAN® in scaling Internet of Things (IoT) deployments. A crowded "Building Massive IoT with LoRaWAN" track session featured a series of speeches and round tables highlighting the evolution, applications and prospects of LoRaWAN technology.
BLOG
Building Massive IoT with LoRaWAN®: Insights from…
In the fast-paced world of technology, few companies have demonstrated the staying power and adaptive innovation of Semtech. For over 65 years, Semtech has continually evolved—transforming from a discrete component manufacturer to a global leader in connectivity, protection and analog solutions that power our interconnected world.
BLOG
The Evolution of Semtech: Six Decades of…
In today's rapidly evolving technological landscape, the concept of smart buildings has moved from futuristic vision to present reality. Connected spaces are revolutionizing how we interact with our built environment, offering unprecedented levels of efficiency, comfort and sustainability. Let's explore how technologies are driving this transformation.
BLOG
The Future of Connected Spaces: How Smart…Talk With Us Today
Semtech is here to help. When you have questions, our experts have answers.
