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DC-DC Flyback Power Supplies

DC-DC flyback power supplies consist of a small number of components and are suitable for 100-W or smaller power supply applications. Toshiba’s latest U-MOSⅧ-H and U-MOS-Ⅸ series include MOSFETs with a VDSS of 30 V to 250 V that operate over a wide range of input voltage.

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MOSFET for Main Switch Photocoupler Synchronous rectification MOSFETs MOSFET gate drivers



Name Outline Date of issue
Describes the features of the DTMOSV series and the improvements from the previous series 9/2017

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  • DTMOS Applications (Noise Reduction)
Describes the mechanism of noise generation and noise reduction techniques 9/2017 coming soon

Application Note

Application note
Name outline Date of issue
Describes planar, trench and super-junction power MOSFETs 11/2016
Describes the absolute maximum ratings, thermal impedance and safe operating area of power MOSFETs 11/2016
Describes electrical characteristics shown in datasheets 11/2016
Describes how to select power MOSFETs, temperature characteristics, the impacts of wires and parasitic oscillation, avalanche ruggedness, snubber circuits and so on 11/2016
Describes thermal equivalent circuits, examples of channel temperature calculation and considerations for heatsink attachment 2/2017
Describes the guidelines for the design of a gate driver circuit for MOSFET switching applications and presents examples of gate driver circuits 8/2017

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Describes the oscillation mechanism of MOSFETs for switching applications 8/2017

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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.