Description:The ISL6353 is a three-phase PWM buck regulator controller for VR12 DDR memory applications. The multi-phase implementation results in better system performance, superior thermal management, lower component cost and smaller PCB area. The ISL6353 has two integrated power MOSFET drivers for implementing a cost effective and space saving power management solution. The PWM modulator of the ISL6353 is based on Renesas' Robust Ripple Regulator™ (R3) technology. Compared with the traditional multi-phase buck regul
A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output capacitors close to the IC, and use short, wide traces for the high-current paths. Avoid routing sensitive analog signals near the high-current paths.
Use a thermal interface material (TIM) between the IC and the heat sink. Ensure good airflow around the heat sink, and consider using a fan or heat sink with a high thermal conductivity. Monitor the junction temperature (TJ) and adjust the heat sink design accordingly.
Choose capacitors with low ESR, high ripple current rating, and a voltage rating that exceeds the maximum input voltage. Ensure the capacitors are placed close to the IC and connected with short, wide traces. X5R or X7R ceramic capacitors are good options.
Use an oscilloscope to monitor the input and output voltages, as well as the current sense signals. Check for proper PCB layout, component selection, and thermal management. Consult the datasheet and application notes for troubleshooting guidelines and common pitfalls to avoid.
The current limit and foldback current limit protect the IC from overcurrent conditions. Ensure that the system design takes into account these limits to prevent damage to the IC or other components. Consider using overcurrent protection devices or fuses to complement the IC's built-in protection.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
ISL6353CRTZ Overview
Use the download button to access the ISL6353CRTZ schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like ISL63,
or try a keyword search, such as Switching Regulator or Controllers
