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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
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500 W Server Power Supply using TOLL Package DTMOS

Simple Block Diagram
Simple Block Diagram
Efficiency Curves
Efficiency Curves



Input voltage AC 90 to 264 V
Output voltage DC 12 V
Output power 500 W
Circuit topology Continuous Current Mode PFC, LLC (Half-Bridge) + Synchronous Rectification, Oring Circuit for Output


  • Smaller size because of TOLL package MOSFET
  • 1 U rack size and high efficiency power supply
  • Total efficiency:93.2 % (Vin = 230 V at 100 % load)
  • Outline size:192 mm x 135 mm x 40 mm
  • Uses optimum power MOSFET and photocoupler

Reference design files

Design, Document

“Design・Document” contains the documents listed below.


Design, File

“Design・File” contains the contents listed below.

*1:Actual PCB was designed on CR5000BD. The other files were made from CR5000BD file.
*2:The data was generated on CR5000BD.

Toshiba items

Part Number Device Category Portion Usage Description
TK090U65Z MOSFET PFC・1 DTMOSVI/650 V/90 mΩ (max) @VGS = 10 V/TOLL
TK20A60W5 MOSFET Primary side・2 DTMOSIV/600 V/175 mΩ (max) @VGS = 10 V/TO-220SIS
TPH1R306P1 MOSFET Secondary side・4 U-MOSIX-H/60 V/1.28 mΩ (max) @VGS = 10 V/SOP Advance
TPHR9203PL MOSFET Oring・3 U-MOSIX-H/30 V/0.92 mΩ (max) @VGS = 10 V/SOP Advance
TLP385 Photocoupler Output voltage feedback・1 DC input/Transistor output/BVS = 5000 Vrms/4pin SO6L



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