industry news
Subscribe Now

Semtech Adds Ultra-Low RDS(on) Load Switch Family to FemtoSwitch Platform

CAMARILLO, Calif., Feb. 14, 2017 ? Semtech Corporation (Nasdaq: SMTC), a leading supplier of analog and mixed-signal semiconductors, today announced the latest family of load switches in its FemtoSwitch™ product platform. The new, ultra-low RDS(on) load switches are ideal for 5V, 15W USB Power Delivery (USB-PD) type-C port controller applications and other power rail switching applications, such as battery-powered portable electronics.

This product family extends Semtech’s FemtoSwitch platform of high-performance analog load switch ICs. It features slow, soft start when the switch is turned-on to limit the in-rush current. Its output pin provides an auto-discharge function for H-version products, and it is protected from overload faults with a 3A current-limit, as well as from over-temperature with a shutdown circuit.

“This expansion to our FemtoSwitch load switch platform enhances Semtech’s high performance, low power product portfolio,” said Francois Ricodeau, Product Line Manager for Semtech’s Power and High-Reliability Products Group. “By providing ultra-low RDS(on) load switches geared toward USB-PD type-C port controller applications, we are able to meet the demands of the fast-growing portable electronics market.”

Key Features of the Ultra-Low RDS(on) Load Switch Family

  • Sophisticated integrated circuitry for ultra-low, 9m? RDS(on) to minimize voltage drop and energy dissipation across the switch
  • Controlled soft start to limit in-rush current
  • 3A continuous output current to protect from overload faults
  • Over temperature protection
  • Ultra-small 0.9mm x 1.4mm package

Pricing and Availability

The ultra-low RDS(on) load switches (SKU: SC33001A and SC33001AH) are available immediately in production quantities and are priced at $0.20 each in 1,000-piece lots. Semtech offers comprehensive design assistance, including field- and factory-based support. Datasheets, volume pricing, and delivery quotes, as well as evaluation kits and samples, are available at

About Semtech’s FemtoSwitch Products

Semtech offers high-performance analog load switches with industry-leading performance to control power to downstream systems. The extremely low RDS(on) of Semtech’s FemtoSwitch products translates to minimal power loss for any gated power supply rail. The FemtoSwitch platform is designed for superior reliability and ruggedness to ensure long operating life through the harshest environments and operating conditions possible.


About Semtech

Semtech Corporation is a leading supplier of analog and mixed-signal semiconductors for high-end consumer, enterprise computing, communications, and industrial equipment. Products are designed to benefit the engineering community as well as the global community. The Company is dedicated to reducing the impact it, and its products, have on the environment. Internal green programs seek to reduce waste through material and manufacturing control, use of green technology and designing for resource reduction. Publicly traded since 1967, Semtech is listed on the Nasdaq Global Select Market under the symbol SMTC. For more information,  

Leave a Reply

featured blogs
Mar 21, 2018
There are few better places to be in March than San Diego. SoCal sunshine always beats wintry weather. Thankfully, OFC 2018 was located at the San Diego Convention Center instead of the snowy US East Coast. The sunny weather outside acted as a harbinger of the positive energy...
Mar 21, 2018
During the war, there was a lot of computer technology developed in all of UK and US (and Germany, although that was mostly electromechanical and so was a sort of dead end). After the war, the US and UK took totally different approaches. In the UK, everyone who had worked at ...
Mar 20, 2018
In my continuing series about SerDes design, I'€™ve discussed the first steps you need to take toward SerDes channel compliance and how protocols and analysis methods have evolved with increased data rates. In this blog, we'€™ll take a look at eye diagrams and how they a...
Mar 5, 2018
Next-generation networking solutions are pushing processing out of the cloud and towards the network'€™s edge. At the same time, processing structures architected around programmable logic provide the ability to make computing much more data-centric. Programmable logic make...