ISL6565ACVZ-T

DC DC Switching Controllers Overview

The ISL6565ACVZ-T is a multi-phase PWM controller designed for VR10.X microprocessor core voltage regulation. It drives up to three synchronous-rectified buck channels in parallel using interleaved timing to reduce ripple currents. The device operates with a maximum switching frequency of 1500kHz and utilizes voltage-mode control with pulse width modulation. It features precision rDS(ON) current sensing for adaptive voltage positioning. The component is housed in a 28-pin TSSOP package and supports an input voltage range from 4.75V to 5.25V.

DC DC Switching Controllers Feature Summary

• Controls up to three synchronous-rectified buck channels in parallel for multi-phase architecture
• Utilizes precision rDS(ON) current sensing method for adaptive voltage positioning
• Employs interleaved timing to multiply channel ripple frequency and reduce input/output ripple currents

DC DC Switching Controllers Applications

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

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'CVZ' against official Intersil documentation to confirm compliance status and tape-and-reel packaging specifications. Ensure the ordering part number matches the exact temperature grade and package variant required for the target design, as suffixes may indicate differences in environmental compliance or shipping configuration.

DC DC Switching Controllers Selection Notes

Select this component when designing high-current processor power stages requiring precise phase balancing without external sense resistors. The integrated rDS(ON) sensing reduces bill-of-materials cost and board space compared to DCR or resistor-based methods. Ensure the design accommodates the 28-TSSOP thermal requirements and validates the 1500kHz maximum switching frequency against electromagnetic interference constraints.

DC DC Switching Controllers Part Context

This part belongs to the ISL6565 family of multi-phase controllers manufactured by Intersil, now part of Renesas. The family includes variants such as the ISL6565B which utilizes DCR current sensing instead of rDS(ON). These devices are specifically engineered for low-voltage, high-current applications typical in modern computing platforms requiring fast transient response and tight voltage regulation.

DC DC Switching Controllers Replacement Considerations

The ISL6565ACV-T is a related variant within the same product line. Verify if the non-Z suffix indicates a difference in RoHS compliance or packaging format rather than functional changes. Cross-reference pinouts and electrical characteristics to ensure compatibility with existing PCB layouts and control loop compensation networks.