Part Number : PAF400F280-1.8
Function : 200V to 400VDC Input Full brick DC-DC Converter
Maker : TDK Corporation
Pinouts : 
Description :
1. Up to 100A Output Current
2. Fast Transient Response
3. Current Share
4. Full Power at 85°C Baseplate
5. Wide Adjustable Output Range
6. Parallel Pin
7. ASIC Design
Applications :
1. Servers & Rail Systems
2. High End Computers
3. Custom Power Supplies
Datasheet PDF Download : 
Others datasheet of same file :
PAF400F280, PAF400F280-3.3, PAF400F280-5