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STMicroelectronics Extends High-Efficiency Power Family Using New Energy-Saving Package

GENEVA — (Marketwired) — 05/06/13 — (NYSE: STM), a global semiconductor leader serving customers across the spectrum of electronics applications, has introduced the first MDmesh V Super-Junction MOSFET featuring a new package technology that increases the efficiency of power circuitry in equipment such as white goods, televisions, PCs, telecom, and server switched-mode power supplies.

The new provides a direct source connection used only for switching control, whereas conventional packages provide one connection for both switching and power. The extra lead increases switching efficiency, which reduces energy losses and allows higher-frequency operation for more compact power supplies.

ST co-developed the package with Infineon, which is also introducing its own new Super-Junction devices, providing second-source flexibility for users. “The TO247-4 is highly cost-effective and requires only minimal modification of the PCB layout when replacing a standard TO-247 device, which simplifies adoption in power systems,” commented Maurizio Giudice, Marketing Director, Division, STMicroelectronics. “Our new MDmesh devices using this package will enable better environmental performance of end equipment by improving energy efficiency in active modes.”

The features an innovative internal construction implementing a Kelvin connection to the source. This connection bypasses the common source inductance of the main power connection, enabling up to 60% of switching losses to be eliminated and allowing designers to use higher switching frequencies that require smaller filtering components. Combining this new package with ST-s , which achieves one of the highest conduction efficiencies per silicon area, delivers the best possible overall energy savings.

The device introduced today is the . As the first MDmesh device released in the TO247-4, it will enable increased energy efficiency in active Power-Factor Correction (PFC) circuits and full-bridge or half-bridge power converters for a wide variety of consumer and industrial electronic products.

High noise immunity, lowering susceptibility to Electro-Magnetic Interference (EMI)

Increased voltage rating for greater safety margins

High dv/dt capability for enhanced reliability

100% avalanche tested, enabling use in rugged designs

The is in mass production now, priced from $10.00 for orders over 1,000 pieces.

For further information please refer to

ST is a global leader in the semiconductor market serving customers across the spectrum of sense and power and automotive products and embedded processing solutions. From energy management and savings to trust and data security, from healthcare and wellness to smart consumer devices, in the home, car and office, at work and at play, ST is found everywhere microelectronics make a positive and innovative contribution to people-s life. By getting more from technology to get more from life, ST stands for life.augmented.

In 2012, the Company-s net revenues were $8.49 billion. Further information on ST can be found at .


Michael Markowitz
Director Technical Media Relations
+1 781 591 0354

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