ISL6556ACR-T

Special Purpose Regulators Overview

The ISL6556ACR-T is a switching controller designed for multi-phase Voltage Regulator Modules (VRM) compliant with Intel VR10 specifications. It integrates four PWM channels to drive external power stages, supporting output currents up to 120 A. The device operates within an input voltage range of 4.75 V to 5.25 V and provides adjustable output voltages from 837.5 mV to 1.6 V. It features a programmable switching frequency ranging from 80 kHz to 1.5 MHz and a maximum duty cycle of 66.7%. The component functions reliably across an operating temperature range of 0°C to +70°C and is housed in a QFN EP package.

Special Purpose Regulators Feature Summary

• Integrates four independent PWM channels for multi-phase VRM applications
• Supports Intel VR10X specification compliance for processor core voltage regulation
• Features programmable switching frequency and adjustable output voltage ranges
• Includes thermal protection mechanisms for enhanced operational reliability

Special Purpose Regulators Applications

• Intel VR10X Voltage Regulator Module designs
• Multi-phase CPU core voltage regulation circuits
• High-current DC-DC converter systems

Special Purpose Regulators Procurement Notes

Verify the specific suffix 'CR' against official Renesas documentation to confirm package type and pinout compatibility. Confirm RoHS status and moisture sensitivity level requirements for your assembly process. Check current availability status as this component may be discontinued or subject to supply constraints. Ensure the selected variant matches the required thermal performance and electrical parameters for your specific design.

Special Purpose Regulators Selection Notes

Select this controller when designing multi-phase VRMs requiring Intel VR10X compliance. Consider the QFN EP package for thermal management needs. Evaluate the 120 A output capability against load requirements. Verify that the 80 kHz to 1.5 MHz frequency range fits your electromagnetic interference constraints. Ensure the 0°C to +70°C operating temperature range meets your environmental specifications.

Special Purpose Regulators Part Context

The ISL6556B series includes variants like ISL6556BCRZA-T and ISL6556BCB-T, offering similar VRM control functionalities in different packages such as SOIC and QFN. These components are part of Renesas's portfolio for high-performance processor power management. The ISL6556ACR-T specifically targets multi-phase applications with integrated thermal protection and programmable features for flexible system design.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. Consult Renesas Electronics Corporation for current alternative recommendations or obsolescence notices.