ISL6528CBZS2698

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The ISL6528CBZS2698 is an integrated circuit (IC) manufactured by Intersil that is part of the ISL6528-CBZ (Continuous Breach Zero) Voltage Regulator family. This IC provides both linear and switching regulation, enabling designers to configure a wide range of power supply capabilities. The ISL6528 features internal power loss protection and a PMBus interface for monitoring and data logging. In addition, it integrates a MOSFET switch that enables fast current delivery to reduce transient response times and minimize output capacitor ripple. It also features flexible current monitor capabilities, allowing designers to accurately monitor both the input and output currents flowing through the device. This IC is suitable for applications ranging from battery and Wall-Adapter powered products, to automotive and general-purpose air-cooled equipment.

The ISL6528CBZS2698 is an all-in-one monolithic, low power integrated regulator solution capable of providing regulated output voltages from 0.77V to 28V. It pulls 4A output current with a maximum voltage drop of 0.1V, and can operate in adjusment, forced fixed and discontinuous modes. The fixed output voltage options include 1.8V, 3.3V, 5V, 12V, and 15V. The device also has an adjustable voltage option for up to 28V for higher current loads. The device includes two fast transient operators, which allow for an optimized ripple rejection performance over a wide voltage range.

The ISL6528CBZS2698 is designed to work with low ESR ceramic capacitors, and operates up to a rated temperature of +125°C. It provides an adjustable line regulation of 35μV/V and a typical output voltage accuracy of ±2.5%, and is suitable for applications such as servers and networking equipment, as well as industrial and automotive platforms. It contains internal circuitry to protect against reverse current, short circuits, and over-temperature conditions. It also features an internal watchdog timer for monitoring and resetting in the event of system lockups. Finally, it includes an active current limiting feature for output current protection.

The ISL6528CBZS2698 works by using a switching regulator to step down the input voltage, and then transferring its output regulation to a linear regulator. This allows it to operate with wide input voltage ranges while maintaining a steady output voltage. The device’s main switch is driven by a voltage comparator which has the input voltage and a reference voltage applied to it. The reference voltage is adjusted through a programmed resistor network so that the comparator will turn the switch on at the appropriate voltage. When the switch is turned on, energy is transferred to the output through the inductor and output capacitors. This energy is then regulated by the linear regulator, which uses a power transistor to control the voltage as it is regulated from the output of the switch.

The ISL6528CBZS2698 is a great tool for implementing various power management solutions. Its wide range of operational and configuration options, along with its robust protection features, allow for design customization for a range of different applications. Whether the application calls for a low voltage, low power solution, or a high power, high voltage requirement, the ISL6528CBZ S2698 can provide a flexible, efficient, and reliable voltage supply.

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