The requested file:
https://pdf.datasheetcatalog.com/datasheet2/0/00efaeuft43c2gkj6lwkhdlzu63y.pdf
is the data sheet for the following electronic components:

ON Semiconductor

#	Part Name	Description
1	UC2842A	Linear High-Performance Current Mode Controller
2	UC2842AD	Linear High-Performance Current Mode Controller
3	UC2842ADR2	Linear High-Performance Current Mode Controller
4	UC2842AN	Linear High-Performance Current Mode Controller
5	UC2843A	Linear High-Performance Current Mode Controller
6	UC2843AD	Linear High-Performance Current Mode Controller
7	UC2843AD1	Linear High-Performance Current Mode Controller
8	UC2843AD1R2	Linear High-Performance Current Mode Controller
9	UC2843ADR2	Linear High-Performance Current Mode Controller
10	UC2843AN	Linear High-Performance Current Mode Controller
11	UC3842A	High Performance Current Mode Controller
12	UC3842AD	High Performance Current Mode Controller
13	UC3842ADR2	High Performance Current Mode Controller
14	UC3842AN	High Performance Current Mode Controller
15	UC3842AN2	High Performance Current Mode Controller
16	UC3843A	High Performance Current Mode Controller
17	UC3843AD	High Performance Current Mode Controller
18	UC3843AD1	High Performance Current Mode Controller
19	UC3843AD1R2	High Performance Current Mode Controller
20	UC3843AD2R2	High Performance Current Mode Controller
21	UC3843ADR2	High Performance Current Mode Controller
22	UC3843AN	High Performance Current Mode Controller
23	UC3843AN2	High Performance Current Mode Controller

Select the part name and then you can download the datasheet in PDF format.