Package 25-WLCSP contains the ICs.A package named Tape & Reel (TR) contains integrated circuit.Mounting is done using the Surface Mount method.Basically, integrated circuit is a Level Shifter.You can find similar integrated circuit systems by searching for the IP4852 family.EMI Filter is the appropriate place to apply the ICs.
IP4852CX25/LF,135 Features
Applications : EMI Filter
IP4852CX25/LF,135 Applications
There are a lot of NXP USA Inc. IP4852CX25/LF,135 Specialized ICs applications.
PC-Based Instruments
All AC-DC converters with X capacitors of 100 nF up to 6 mF