Contributes to Higher Efficiency of switched-mode power supply

With the advent of an advanced information society, the amount of information handled every day has dramatically increased, and the increase in power consumed by data centers and information and communications equipment has become a problem on a global scale. Therefore, the demand of high-efficiency for switched-mode power supply (SMPS) that supply power to data centers and information and communications equipment has been increasing in recent years.

The loss of MOSFET in switched-mode power supply is roughly divided into on-time loss and on-off switchover loss, the new generation DTMOSVI 650 V series aims at improvement focusing on reduction of the switchover loss. Especially aiming the loss reduction by speed up the switching from ON to OFF, the new generation reduces the values of “drain-source On-resistance x gate-drain charge” by about 40 % compared with the previous generation ^{[Note 1]}. And this reduction allows the efficiency of switching power supplies to be improved by about 0.36 %^{[Note 2]}.
TOLL is a surface-mount package that has an approximately 27 % smaller footprint than the usual D2PAK package. It is also a 4-pin type package that allows Kelvin connection of its signal source terminal for the gate drive. This can reduce the influence by the inductance of the source wire in the package to bring out the high-speed switching performance of the MOSFETs, suppressing oscillation when switching.
Toshiba will continue expanding its product lineup to meet market trends and help improve the efficiency of power supplies.

• Applying new generation of “Super Junction Construction”
• 40% reduction of ”Drain-Source On-Resistance” x “Gate-Drain Charge”
• Switched Mode Power Supply Library supporting selection of Power MOSFET depends on each topology
• Useful application(1.6kW SMPS), reference design(500W SMPS), and other documents on the web.
  Switched Mode Power Supply Library
  Application(1.6kW SMPS)
  Reference design(500W SMPS)

Click here for detailed information on MOSFETs