Vishay/Siliconix Supplier Page

N-Channel TrenchFET® Gen III Power MOSFETs with TurboFET™


N-Channel TrenchFET® Gen III Power MOSFETs with TurboFET™

Vishay and Digi-Key offer low switching losses and faster switching


Vishay has expanded its family of Gen III TrenchFET® power MOSFETs with the release of two 20-V and two 30-V n-channel devices that are the first to offer TurboFET™ technology, which utilizes a new charge balanced drain structure to lower the gate charge by up to 45%, enabling significantly lower switching losses and faster switching.

The devices are 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.

  • Features
  • SiS426DN
  • SiR496DP
  • Si7718DN
  • Si7784DP

Features & Applications


Features Applications
  • Charge balanced TrenchFET Gen III utilizing TurboFET drain structure technology provides record-breaking gate charge while maintaining excellent on-resistance performance
    • On-resistance times gate-drain charge FOM down to 23.2 mΩ-nC
      at VGS = 4.5 V
    • Low switching losses enable high efficiency and low power consumption
  • Lower gate charge enables higher frequency operation, allowing the use of smaller passive components in dc-to-dc converters
  • Available in thermally advanced PowerPAK® 1212-8 and PowerPAK SO-8 packages
  • High-side MOSFET in synchronous buck
    • Notebook Computers
    • VRMs
    • Servers
    • Systems using point-of-load (POL)
RoHS Compliant

SiS426DN – N-Channel 20-V (D-S) MOSFET


The 20-V SiS426DN device offers one of 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 mΩ-nC at 4.5 V and 117.60 mΩ-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.

Features Applications
  • Halogen-free
  • 100% Rg Tested
  • 100% UIS Tested
   Datasheet
  • POL
  • DC/DC
RoHS Compliant
SiS426DN Bottom View

Digi-Key Part Number Vishay/Siliconix Part Number Mounting Type
SIS426DN-T1-GE3CT-ND SIS426DN-T1-GE3 Surface Mount

SiR496DP – N-Channel 20-V (D-S) MOSFET


The SiR496DP has an on-resistance at 4.5 V of 5.8 mΩ and on-resistance at 10 V of 4.2 mΩ, with a typical gate charge of 13.2 nC at
4.5 V and 28 nC at 10V. Offered in the PowerPAK SO-8 package type, the SiR496DP is available for high-current applications.

Features Applications
  • Halogen-free
  • 100% Rg Tested
  • 100% Avalanche Tested

   Datasheet
  • High Current DC/DC
    • Low-Side Switch
  • POL
RoHS Compliant
SiR496DP Bottom View

Digi-Key Part Number Vishay/Siliconix Part Number Mounting Type
SIR496DP-T1-GE3CT-ND SIR496DP-T1-GE3 Surface Mount

Si7718DN – N-Channel 30-V (D-S) MOSFET


Vishay’s 30-V TurboFET offering includes the Si7718DN in the PowerPAK 1212-8. The MOSFET offers 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 mΩ-nC at 4.5 V and 180 mΩ-nC at 10 V.

Features Applications
  • Halogen-free
  • PWM Optimized
  • 100% Rg Tested
  • 100% UIS Tested
   Datasheet
  • High Side Switch
    • VRM
    • POLRoHS Compliant
Si7718DN Bottom View

Digi-Key Part Number Vishay/Siliconix Part Number Mounting Type
SI7718DN-T1-GE3CT-ND SI7718DN-T1-GE3 Surface Mount

Si7784DP – N-Channel 30-V (D-S) MOSFET


Vishay’s 30-V TurboFET offering includes the Si7784DP in the PowerPAK SO-8. The MOSFET offers 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 mΩ-nC at 4.5 V and 180 mΩ-nC at 10 V.

Features Applications
  • Halogen-free
  • 100% Rg Tested
  • 100% Avalanche Tested

   Datasheet
  • Synchronous Rectification
  • DC/DC
    • High-Side Switch
RoHS Compliant
Si7784DP Bottom View

Digi-Key Part Number Vishay/Siliconix Part Number Mounting Type
SI7784DP-T1-GE3CT-ND SI7784DP-T1-GE3 Surface Mount