National Semiconductor Unveils SIMPLE SWITCHER Power Module Family

Easy-to-Use Modules Accelerate Time-to-Market, Deliver Superior Thermal and EMI Performance

SANTA CLARA, Calif., Jan. 25 — (PRNewswire) — National Semiconductor Corp. (NYSE: NSM) today introduced the first three products in its SIMPLE SWITCHER® power module family. The LMZ-series of power modules provide an innovative, integrated solution that will save design time and provide ease-of-use to help system designers get their products to market faster. The power modules provide the efficiency of a synchronous switching regulator with the simplicity of a linear regulator, eliminating the external inductor and complex layout placement challenges typical of switching regulator designs. Other devices in the SIMPLE SWITCHER power module family will launch throughout 2010.

National's power modules simplify power supply design for field-programmable gate arrays (FPGAs), microprocessors, digital signal processors (DSPs) and other point of load (POL) conversions for medical, broadcast video, communications, industrial and military applications. Its patent-pending packaging technology provides low radiated electromagnetic interference (EMI), enabling National's power modules to meet the requirements of the EN55022 (CISPR22) Class B radiated emission standard. The modules' efficient heat dissipation and large exposed-bottom pad allows for operation in high-ambient temperatures without the need for airflow. They typically operate as much as 10 degrees cooler than comparable modules.

Additionally, the power modules' single exposed-bottom pad allows for easy and quick prototyping on lab benches, eliminating the possibility of non-visual solder bridging. The size and lead pitch of these modules enable the use of the same pick-and-place manufacturing employed with standard TO-263 packages. Each module is pin-to-pin compatible with other family members, allowing designers to create one layout to facilitate last-minute drop-in replacements if load current requirements change.  

Power supply designers can design with SIMPLE SWITCHER power modules using National's award-winning WEBENCH® Power Designer, as well as the new WEBENCH Power Architect design tool. The enhanced WEBENCH Power Architect enables engineers to rapidly create multi-output DC-DC power supplies for an entire system.

Technical Features – SIMPLE SWITCHER Power Modules

National's SIMPLE SWITCHER power modules provide -40 degrees C to 125 degrees C operation, along with low output voltage ripple and a wide voltage and current range that enable a complete customer-specific power supply solution. The first release of the LMZ power modules supports the common 3.3V, 5V, 12V and 24V input voltage rails and offers load currents up to 4A. Available in 7-lead, 10.16 mm by 13.77 mm by 4.57 mm packages, the LMZ-series feature best-in-class thermal resistance (theta-JA) temperature of 20 degrees C per watt.

The LMZ10504 supports maximum load currents of 4A with an input voltage range of 2.95V to 5.5V. For more information on the LMZ10504 or to order samples and an evaluation board, visit www.national.com/pf/LM/LMZ10504.html.  

The LMZ12003 supports maximum load currents of 3A with an input voltage range of 4.5V to 20V. For more information on the LMZ12003 or to order samples and an evaluation board, visit www.national.com/pf/LM/LMZ12003.html.  

The LMZ14203 supports maximum load currents of 3A with an input voltage range of 6V to 42V. For more information on the LMZ14203 or to order samples and an evaluation board, visit www.national.com/pf/LM/LMZ14203.html.  

Pricing and Availability

Available now, the LMZ10504 is priced at $7.10 each, the LMZ12003 is $7.25 each, and the LMZ14203 is $9.50 each in 500-unit quantities. Additional information is available at www.national.com/switcher.

About National Semiconductor

National Semiconductor is a leader in analog power management technology. Its products include easy-to-use integrated circuits, PowerWise products that enable more energy-efficient systems, and SolarMagic products which improve the energy output of solar arrays. The company celebrated its 50th anniversary this year. Headquartered in Santa Clara, Calif., National reported sales of $1.46 billion for fiscal 2009. Additional information is available at www.national.com.

SIMPLE SWITCHER, WEBENCH and PowerWise are registered trademarks, and SolarMagic is a trademark of National Semiconductor Corporation.

Media Contact

Reader Information

Mark Alden

Design Support Group

National Semiconductor

National Semiconductor

(408) 721-6929

(800) 272-9959

Email Contact

www.national.com


SOURCE National Semiconductor Corp.

Contact:
National Semiconductor Corp.
Media, Mark Alden
Phone: +1-408-721-6929
Email Contact
Reader Information, Design Support Group, 1-800-272-9959, both of National Semiconductor
Web: http://www.national.com




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