ISL6522CBZAR5190

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

ISL6522CBZAR5190 application field and working principle

Background:ISL6522CBZAR5190 (here on referred to simply as ISL6522) is a fully-integrated power management integrated circuit (PMIC) from Intersil Corporation. It belongs to the family of DC-DC switching controllers and is a two-phase controller optimized for synchronous buck converters. The device is a cost-efficient, high-performance solution for a range of applications such as computing, consumer electronics, portable devices, and telecommunication.

Application Field:The ISL6522 is a versatile DC-DC controller which is suitable for a wide variety of power conversion tasks. For example, the ISL6522 is an ideal solution for implementing buck converter designs in point of load applications where high power efficiency and good thermal performance is required. It is also suitable for applications with multiple output voltages such as notebook and server motherboards, and is designed to maximize power efficiency and dynamic response.

Features:The ISL6522 is a high-performance, high-efficiency power management integrated circuit. It features a maximum switching frequency of 2MHz, and is capable of delivering up to 1A of continuous current, suitable for use in applications requiring high power and good transient response. In addition, the device has integrated over-current, soft-start and voltage slew rate control, providing superior stability and over-current protection.

Working Principle:The ISL6522 is a two-phase DC-DC controller based on feedback and pulse width modulation (PWM). The device is designed to handle two independent synchronous buck converters, with the control loop comprising two identical but independent control methods. In order to achieve the desired output voltage, a voltage feedback signal is sent to the two control inputs, using a voltage comparator to set the desired voltage level. The reference voltage of the feedback signal is set using an external resistor divider. When the voltage feedback signal exceeds the reference voltage, the controller outputs a logic high signal. The incoming logic high signal is then compared with the square wave of the oscillator, which generates the PWM signal. The resulting PWM signal is then used to control the switching on and off of the switch node, producing the desired output voltage.

Conclusion:The ISL6522CBZAR5190 is a versatile, cost-effective and high-performance power management integrated circuit which is suitable for a wide range of applications. Featuring a wide operating frequency range, integrated over-current protection and low-voltage slew rate control functionality, the device is a great choice for power efficiency and good thermal performance.

The specific data is subject to PDF, and the above content is for reference