3Pcs UC2525AN PDIP-16 Switching Controllers Regulating Pulse Width Modulator

3Pcs UC3525ADWG4 SOIC-16 Switching Controllers Regulating Pulse Width Modulator

2Pcs UC28025DWR SOIC-16 Switching Controllers Regulating Pulse Width Modulator

3Pcs UC2572DG4 SOIC-8 Switching Controllers Neg-Out Flyback Pls Width Modulator

3Pcs SN74AS257N PDIP-16

3Pcs MC33067PG PDIP-16 Switching Controllers High Performance Resonant Mode

3Pcs TL1451ACN PDIP-16 Switching Controllers Dual ch PWM Ctlr

15Pcs SG3524NE4 PDIP-16 Switching Controllers Regulating Pulse Width Modulator