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ISL6228 - High-Performance Dual-Output Buck Controller

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 the error amplifier output VCOMP, and the upper threshold is a programmable voltage reference VW, resulting in generation of the PWM signal. Th.

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Datasheet preview – ISL6228

Datasheet Details

Part number ISL6228
Manufacturer Renesas
File Size 866.68 KB
Description High-Performance Dual-Output Buck Controller
Datasheet download datasheet ISL6228 Datasheet
Additional preview pages of the ISL6228 datasheet.

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Full PDF Text Transcription

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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. Intersil’s R3 technology combines the best 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.
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