Controller IC Chip - MOSFET ISL6228HRTZ ISL6228 chip for laptop - Ολοκληρωμένο τσιπ φορητού υπολογιστή (Κωδ.1-CHIP0497) High-Performance Dual-Output Buck Controller for Notebook Applications The ISL6228 IC is a dual channel synchronous-buck PWM controller featuring Intersil s Robust Ripple Regulator (R3) technology that delivers truly superior dynamic response to input voltage and output load transients. Integrated MOSFET drivers and bootstrap diodes result in fewer components and smaller implementation area.Intersil’s R3 technology combines the best features of fixed-frequency and hysteretic PWMs while eliminating many of their shortcomings. R3 technology employs an innovative modulator that synthesizes an AC ripple voltage signal VR, analogous to the output inductor ripple current. The AC signal VR enters a window comparator where the lower threshold is the error amplifier output VCOMP, and the upper threshold is a programmable voltage reference VW, resulting in generation of the PWM

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