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ISL6565 - Multi-Phase PWM Controller with Precision rDS(ON) or DCR Current Sensing for VR10.X Application

Datasheet Summary

Features

  • Multi-Phase Power Conversion - 2 or 3 Phase Operation.
  • Precision Core Voltage Regulation - Differential Remote Voltage Sensing - ±0.5% System Accuracy Over Temperature and Life - Adjustable Reference-Voltage Offset.
  • Precision rDS(ON) or DCR Current Sensing - Integrated Programmable Temperature Compensation - Accurate Load-Line Programming - Accurate Channel-Current Balancing - Low-Cost, Lossless Current Sensing.
  • Input Voltage: 12V or 5V Bias.
  • Micropr.

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Datasheet preview – ISL6565

Datasheet Details

Part number ISL6565
Manufacturer Intersil Corporation
File Size 668.76 KB
Description Multi-Phase PWM Controller with Precision rDS(ON) or DCR Current Sensing for VR10.X Application
Datasheet download datasheet ISL6565 Datasheet
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Full PDF Text Transcription

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® ISL6565A, ISL6565B Data Sheet December 2003 FN9135 PRELIMINARY Multi-Phase PWM Controller with Precision rDS(ON) or DCR Current Sensing for VR10.X Application The ISL6565A, ISL6565B controls microprocessor core voltage regulation by driving up to 3 synchronous-rectified buck channels in parallel. Multi-phase buck converter architecture uses interleaved timing to multiply channel ripple frequency and reduce input and output ripple currents. The difference between the ISL6565A and the ISL6565B is that the ISL6565A utilizes rDS(ON) current sensing, while the ISL6565B utilizes DCR current sensing for each phase. These cost and space saving methods of current sensing are used for adaptive voltage positioning (droop), channelcurrent balancing, and over-current protection.
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