Description:The ISL62773 is fully compliant with AMD Fusion™ SVI 2. 0 and provides a complete solution for desktop microprocessor and graphics processor core power. The ISL62773 controller supports two Voltage Regulators (VRs) with three integrated gate drivers and two optional external drivers for maximum flexibility. The Core VR can be configured for 3-, 2-, or 1-phase operation while the Northbridge VR supports 2- or 1-phase configurations. The two VRs share a serial control bus to communicate with the AMD CPU and a
Renesas provides a recommended PCB layout guide in their application note AN1995, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure optimal performance.
Renesas provides a compensation network design tool on their website, which can be used to generate a customized compensation network based on the specific application requirements. Additionally, the datasheet provides general guidelines for compensation network design.
While the datasheet specifies the recommended input voltage range, it does not explicitly state the maximum allowed input voltage ripple. According to Renesas' application engineers, the maximum allowed input voltage ripple is typically around 1% of the input voltage, but this can vary depending on the specific application and requirements.
While the ISL62773HRZ is rated for operation up to 125°C, it's essential to consider the derating curves and thermal management guidelines provided in the datasheet to ensure reliable operation in high-temperature environments. Additionally, Renesas recommends consulting with their application engineers for specific guidance on high-temperature applications.
Renesas provides a troubleshooting guide in their application note AN1996, which covers common issues and their solutions. Additionally, the datasheet provides guidelines for debugging and troubleshooting. It's also recommended to consult with Renesas' application engineers for specific guidance on troubleshooting.
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ISL62773HRZ Overview
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