ISL6422ERZ-T

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The ISL6422ERZ-T is a special purpose voltage regulator designed and manufactured by Intersil Corporation, a leading provider of power management solutions for today’s increasingly complex systems. The specialty of this voltage regulator is that it offers a power supply design for Vehicle Network (VN) and FlexRay systems. It is an integrated, dual-channel, synchronous buck regulator that operates from an input voltage range of 5 to 28V and provides output voltages as low as 0.8V. Furthermore, the regulator can deliver up to 1000mA of continuous output current and provides a power supply solution offering very good efficiency and excellent transient response. The voltage regulator is available in a 10-lead Thin-shrink Small Outline Package (TSSOP).

The ISL6422ERZ-T voltage regulator is designed for VN and FlexRay networks in automotive and embedded applications. It can be used to power a wide variety of peripheral devices, such as embedded controllers, sensors, and radio transceivers, and is ideal for powering microcontroller cores, memory, and other system components. The voltage regulator is particularly well-suited for the harsh automotive environment, as it is rated for operation up to 150°C junction temperature. Furthermore, it meets the requirements for under-voltage lockout and reverse current protection, features an adjustable soft-start for in-rush current control and over-current/thermal protection.

The ISL6422ERZ-T voltage regulator operates in two phases. The first phase is known as the voltage conversion phase, which is responsible for converting the higher input voltage to the desired lower output voltage. This is accomplished by the regulated buck circuit, which consists of an internal main switching regulator, a linear regulator, and the power stage, along with several control components. This buck regulator controls the output voltage by controlling the duty cycle of the switching regulator, which varies the inductance to maintain the desired output voltage. Additionally, the linear regulator provides very precise output voltage regulation, which is often required in automotive applications.

The second phase is known as the voltage regulation phase. During this phase, the voltage regulator provides a regulated voltage to the load with minimal ripple. This is done by controlling the output current, which is achieved by controlling the on-time of the main switching regulator to maintain the desired output voltage. Further, the voltage regulation phase of the voltage regulator also monitors for any faults and responds accordingly to protect the system from damage.

In summary, the ISL6422ERZ-T is a special purpose voltage regulator that is ideal for VN and FlexRay networks in automotive and embedded applications. It is an integrated, dual-channel, synchronous buck regulator that operates from an input voltage range of 5 to 28V and provides output voltages as low as 0.8V. It is extremely efficient, and offers very good transient response. Additionally, it is rated for operation up to 150°C junction temperature and meets the requirements for under-voltage lockout, reverse current protection, adjustable soft-start, and over-current/thermal protection. Overall, the ISL6422ERZ-T is an excellent choice for automotive and embedded applications that require a robust and reliable power supply solution.

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