ISL6552CB

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ISL6552CB Application Field and Working Principle

ISL6552CB is a DC to DC switching controller from Intersil, which is a standard 6-pin SOIC package. This DC to DC controller can be used in wide variety of applications, including regulated point-of-load conversion, buck and step-down conversion, and other high efficiency DC to DC regulation applications. It is an integrated device that includes two N-channel MOSFET gate drivers and an integrated charge pump, offering a low component count, low RDS(on) MOSFET switching solution.This DC to DC controller features a configurable PWM frequency and is capable of operation over a wide input voltage range from 5V to 80V. The maximum output current and output voltage can be adjusted through external resistors. The device also has a power good indicator, which indicates when the output voltage is within the desired range. It also has an enable and a reset pin, to allow the user to control how the device is running.

ISL6552CB has a wide operating temperature range of -40°C to 125°C. It also includes a number of protection features to protect against over-voltage conditions, including a transient protection feature which remains in effect during unplugged conditions. The device also includes a cycle-by-cycle peak current limit, allowing the user to set a maximum value for the charge pump peak current. Additionally, the ISL6552CB also includes a frequency foldback feature, which will lower the switching frequency when the output voltage is close to the set point, to ensure safe operation at light loads.

ISL6552CB is suitable for a variety of applications such as telecom power grids, computing and storage systems, automotive and consumer electronics, and healthcare equipment. The device is designed to provide a reliable switching solution with high power efficiency and low component count. With its configurable PWM frequency and wide input voltage range, the ISL6552CB is a versatile and reliable switching controller for DC to DC power supply applications.

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