ISL8002BIRZ-T

Introduction

The ISL8002BIRZ-T is a DC/DC switch mode regulator from Intersil. It is an ideal solution in various applications, ranging from consumer to automotive, where a small size and low output noise are required. In addition, it has factory-programmable fixed and variable output voltages ranging from 0.8V to 5.5V making it suitable for a broad range of applications.

Application Field

The ISL8002BIRZ-T is widely used in a variety of applications, such as power conversion, battery chargers, solar power invertors and automotive applications. It is a highly configurable regulator, offering unrestricted selection of input and output voltages, adjustable currents and over temperature protections.The ISL8002BIRZ-T is well-suited for high current DC/DC conversions, energy storage and data acquisition systems, as well as automotive applications. It is capable of providing clean, low ripple and noise (<10mV) in either transition-mode or synchronous rectification operation. Its high efficiency and small footprint make it ideal for a variety of space-sensitive applications.

Working Principle

The working principle of the ISL8002BIRZ-T is based on a buck-boost topology. It utilises a buck stage for controlling the drain current of the internal power switch, and a boost stage that maintains the output voltage as steady as possible. In steady state, the output voltage is constant and equal to the voltage reference voltage. The power switch is driven by a linear current controller, allowing a very high degree of accurate current regulation and compensation for input voltage variation.The ISL8002BIRZ-T uses a synchronous P-channel MOSFET and N-channel MOSFET in a buck-boost topology. The power switch is driven by a linear current controller that allows a very high degree of accurate current regulation and compensation for input voltage variation. The typical efficiency of these power stages is greater than 85%. The ISL8002BIRZ-T integrates various features to ensure optimal operation, such as over temperature protection, over voltage protection, current limit protection and output voltage regulation. It also offers integrated Enable and shutdown-mode switching control.

Conclusion

The ISL8002BIRZ-T DC/DC switch mode regulator from Intersil is an ideal solution for a range of applications, ranging from consumer to automotive. It is capable of providing clean, low ripple and noise in either transition-mode or synchronous rectification operation, and offers a wide selection of input and output voltages, adjustable currents, over temperature protections and Enable and shutdown-mode switching control. With its high efficiency, small footprint and competitive cost, the ISL8002BIRZ-T is an excellent choice for power conversion, data acquisition, energy storage and automotive applications.