Description:The ISL6313 two-phase PWM control IC provides a precision voltage regulation system for advanced microprocessors. The integration of power MOSFET drivers into the controller IC marks a departure from the separate PWM controller and driver configuration of previous multiphase product families. By reducing the number of external parts, this integration is optimized for a cost and space saving power management solution. One outstanding feature of this controller IC is its multiprocessor compatibility, allowing
The recommended PCB layout for the ISL6313IRZ involves placing the input capacitors close to the VIN pin, using a solid ground plane, and keeping the high-current paths short and wide. Additionally, it's recommended to use a 4-layer board with a dedicated power plane and a dedicated ground plane.
To select the right inductor for the ISL6313IRZ, consider the following factors: inductance value, current rating, DC resistance, and physical size. A good starting point is to use an inductor with an inductance value between 1uH to 4.7uH, a current rating of at least 10A, and a DC resistance of less than 10mΩ.
The ISL6313IRZ can operate in an ambient temperature range of -40°C to +85°C. However, the maximum junction temperature (TJ) should not exceed 125°C. It's essential to ensure proper thermal design and heat sinking to maintain a safe operating temperature.
Yes, the ISL6313IRZ can be used in a synchronous buck converter configuration. In this configuration, the internal high-side FET is used as the main switch, and an external low-side FET is used as the synchronous rectifier. This configuration can improve efficiency and reduce power losses.
The output voltage of the ISL6313IRZ can be adjusted by using a resistive divider network between the output voltage and the FB pin. The resistive divider network sets the feedback voltage, which determines the output voltage. The recommended resistive divider ratio is 1:1 to 1:3.
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ISL6313IRZ Overview
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