ISL6228 Datasheet (Renesas) - High-Performance Dual-Output Buck Controller

ISL6228, High-Performance Dual-Output Buck Controller

DATASHEET ISL6228 High-Performance Dual-OutpuDt aBtuacSkhCeoent troller for Notebook AppliMcaatyio7n,s2008 FN9095 Rev 2.00 May 7, 2008 FB1 VO1 OCSET1 EN1 PHASE1 UGATE1 BOOT1 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

ISL6228 Features

* of fixedfrequency 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