Siliconix Releases First 20-V and 30-V N-Channel TrenchFET® Gen III Power MOSFETs with TurboFET(TM) Technology for Low Switching Losses and Faster Switching
Devices Feature On-Resistance Times Gate Charge FOM Down to 76.6 mOhm-nC at 4.5 V and 117.60 mOhm-nC at 10 V in PowerPAK® 1212-8 Package Type
The 20-V SiS426DN device offers the industry's lowest on-resistance times gate charge for a device with this voltage rating in the 3-mm by 3-mm PowerPAK® 1212-8 footprint. This key figure of merit (FOM) for MOSFETs in dc-to-dc converters is 76.6 mOhm-nC at 4.5 V and 117.60 mOhm-nC at 10 V for the SiS426DN, which features a low typical gate charge of 13.2 nC at a 4.5-V gate drive and 28 nC at a 10-V gate drive.
Compared to the closest competing devices, these specifications represent a reduction in gate charge of 45% at 4.5 V and 36% at 10 V, and a 50% lower FOM. Lower gate charge translates into more efficient switching at all frequencies, and in particular gives the designer the option to operate at higher frequencies, which enables the use of smaller passive components in dc-to-dc converters.
Vishay's 30-V TurboFET offering includes the new Si7718DN in the PowerPAK 1212-8, and the Si7784DP in the PowerPAK SO-8. Both MOSFETs offer typical gate charge of 13.7 nC at 4.5 V and 30 nC at 10 V, and on-resistance times gate charge FOMs of 112.34 mOhm-nC at 4.5 V and 180 mOhm-nC at 10 V. A PowerPAK SO-8 version of the 20-V SiS426DN device, the SiR496DP, is also available for high-current applications. All devices released today are halogen-free and 100% Rg and UIS tested.
The devices will be used as the high-side MOSFET in synchronous buck converters, helping to save power in notebook computers, voltage regulator modules (VRMs), servers, and other systems using point-of-load (POL) power conversion.
Vishay Electronic GmbH
Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, and optoelectronics and selected ICs) and passive electronic components (resistors, capacitors, inductors, sensors, and transducers). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, and medical markets. Its product innovations, successful acquisition strategy, and ability to provide "one-stop shop" service have made Vishay a global industry leader. Vishay can be found on the Internet at http://www.vishay.com.