ISL6552CR-T

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PMICs (Power Management Integrated Circuits) are vital components in modern electronics, and DC-DC Switching Controllers play an important role in providing reliable and efficient power. One such controller is the ISL6552CR-T, which is a digitally enabled monolithic synchronous boost converter. It is targeted at short-to-medium range step-up converter applications, offering wide input voltage ranges and adjustable output voltages. This article will explore the application field of ISL6552CR-T and its working principle.

Application Field for the ISL6552CR-T

The ISL6552CR-T is ideal for a wide range of applications, from ultra low-voltage Step-Up converters and post regulation boost converters. The device is designed to convert a low input voltage to a higher output voltage with exceptionally high efficiency, making it ideal for applications such as 5V/12V, 5V/14V, 5V/19V, and so on. The device also has the capability to detect an overload and quickly shut down the output voltage. This is useful in applications such as laptop power supplies, LED drivers, and mobile phone chargers.

Another key application of the ISL6552CR-T is the use of multi-phase buck converters. The device enables the use of one controller to sync multiple buck converters and increase the total system power density and efficiency. This is useful in server applications, where the output current requirements can exceed what is allowed in a single phase and thus requires multiple-phase buck converters to meet the requirement. Additionally, the ISL6552CR-T has internal input voltage and temperatures sensing, which further improves the power efficiency and reliability of the system.

Working Principle of the ISL6552CR-T

At its core, the ISL6552CR-T is a digitally enabled synchronous boost controller. It is designed to convert a low input voltage to a higher output voltage with very high efficiency, meaning that it will take less energy from the input to reach the desired output voltage. This is achieved by using Pulse Width Modulation (PWM). The controller is capable of switching at frequencies up to 500 kHz and delivers peak efficiencies up to 96%.

The output voltage of the ISL6552CR-T is adjustable. It has a wide range of adjustable output voltage settings, allowing for a range of input to output voltage ratios. This, combined with its ability to detect an overload and quickly shut down, makes it an ideal device for applications that require precise output voltages or require the flexibility to cope with changing input voltages.

The ISL6552CR-T also has an integrated output over-current protection (OCP), over-voltage protection (OVP) and under-voltage protection (UVP) circuitry. These are all adjustable, adding further versatility to the device, allowing the user to select more suitable settings for their particular application. The device also has multiple current loop control and synchronization options, allowing it to be used individually or as part of a multi-phase synchronous buck converter.

Conclusion

The ISL6552CR-T is a digitally enabled monolithic synchronous boost controller, making it ideal for applications that require a wide range of adjustable output voltage settings and overload protection. The device has a wide input voltage range and is capable of switching at frequencies up to 500 kHz, making it an efficient partner for applications such as laptop power supplies, LED drivers, and multi-phase buck converters. With its various adjustable features and protection features, the ISL6552CR-T is an ideal device for efficient and reliable power regulation.

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