This part is a kind of semiconductor called 2PCS02.
Function of this product has ICE2PCS02.
Manufacturers : Infineon Technologies
Image and pinout :

Some of the text within the PDF file :
Version 2.4, 22 Mar 2010 CCM-PFC ICE2PCS02 ICE2PCS02G Standalone Power Factor Correction (PFC) Controller in Continuous Conduction Mode (CCM) with Input Brown-Out Protection Power Management & Supply Never stop thinking. CCM-PFC Revision History: 2010-03-22 Previous Version: V2.3 Page Subjects(major changes since last version) 18&19 Package outline dimension changed Datasheet For questions on technology, delivery and prices please contact the Infineon Technologies Offices in Germany or the Infineon Technologies Companies and Representatives worldwide: see our webpage at http:// www.infineon.com CoolMOS™, CoolSET™ are trademarks of Infineon Technologies AG. Edition 2010-03-22 Published by Infineon Technologies AG 81726 München, Germany © 2007 Infineon Technologies AG All R [ ... ]
2PCS02 PDF Datasheet Download
