ISL6565BCB

DC DC Switching Controllers Overview

The ISL6565BCB is a multi-phase PWM controller designed for VR10.X applications, specifically driving up to three synchronous-rectified buck channels. It utilizes DCR current sensing for each phase to enable adaptive voltage positioning, channel current balancing, and overcurrent protection. The device features programmable internal temperature compensation to maintain droop accuracy despite thermal sensitivity variations in the DCR sense method. A unity gain differential amplifier supports remote voltage sensing to eliminate ground potential differences between local and remote points.

DC DC Switching Controllers Feature Summary

• Implements DCR current sensing for precise phase current monitoring without external shunt resistors
• Provides programmable internal temperature compensation to ensure accurate adaptive voltage positioning across operating temperatures
• Integrates a differential amplifier for remote voltage sensing to correct for ground plane voltage drops

DC DC Switching Controllers Applications

• Microprocessor core voltage regulation
• VR10.X application power stages
• Multi-phase synchronous buck converter designs

DC DC Switching Controllers Procurement Notes

Verify that the specific suffix matches the required package type and temperature range. Confirm the component is sourced from authorized distributors to ensure authenticity. Check for any obsolescence notices or recommended replacement guidance from the manufacturer before finalizing procurement plans.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems requiring DCR current sensing rather than rDS(ON) methods. Ensure the design supports up to three parallel phases. Verify compatibility with Intersil MOSFET driver ICs if using the precision threshold-sensitive enable input for coordinated startup sequences.

DC DC Switching Controllers Part Context

This component belongs to the ISL6565 family of multi-phase PWM controllers. It is functionally similar to the ISL6565A but differs by utilizing DCR current sensing instead of rDS(ON) sensing. The device is manufactured by Renesas Electronics Corporation following the acquisition of Intersil.

DC DC Switching Controllers Replacement Considerations

Official documentation states that new designs should not use this part. Contact technical support for recommended replacements as no direct substitute part numbers are publicly confirmed in the provided source material.