ISL6421AERZ

Series:	--
Packaging:	Tube
Part Status:	Active
Applications:	Converter, Satellite Set-Top Box Designs
Voltage - Input:	8 V ~ 14 V
Number of Outputs:	1
Voltage - Output:	13 V ~ 18 V
Operating Temperature:	-20°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	32-VFQFN Exposed Pad
Supplier Device Package:	32-QFN (5x5)
Base Part Number:	ISL6421

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ISL6421AERZ is a type of voltage regulator that is used in numerous applications. It is a special purpose though, as it is a very high power regulator, capable of operating up to 8 amperes of current. It is a part of the PMIC or Power Management Integrated Circuit family, and as such is intended for use in power systems and devices, designed to manage the current and voltage from a power supply and ensure that the power arrives at the correct load in a safe and reliable way.The ISL6421AERZ is a monolithic single-chip integrated circuit (IC) consisting of two full-spectrum buck controllers, an Internal Automatic Migration (IAM) circuit designed to reduce power dissipation, along with an array of current limit protection, RDS(ON) monitoring circuits, undervoltage (UV) detection, and thermal shutdown functions. The ISL6421AERZ works by taking in a voltage from a power source, ranging from 6.5V to 36V. This voltage passes through the IAM circuit and into the buck controllers. The buck controllers reduce the input voltage by a predetermined ratio to match the output requirement. This process is known as bucking. The IAM circuit helps in this process by increasing the efficiency of the bucking function.The ISL6421AERZ also contains a number of current limit protection circuits, which will disconnect the output from the power source when the load current reaches a certain amount. This is designed to give the device a built-in safety mechanism in case of overloading. The device also has an RDS(ON) monitor system, which will automatically adjust the output based on changes in the temperature of the system. The ISL6421AERZ also has an undervoltage detection circuit, which will detect if the input voltage drops below a certain level, and then disconnect the output from the power source. This system is designed to protect the device from damage in the case of low input voltage. Finally, the ISL6421AERZ also contains a thermal shutdown system, which will detect an increase in the temperature of the device, and will automatically shut down the unit, to avoid any potential damage to it.These various features, along with its overall high power rating and monolithic IC construction, make the ISL6421AERZ a great choice for many power management applications. For example, the ISL6421AERZ could be used in automotive electronics, industrial equipment, medical imaging devices, communications systems and even power supplies for computers. In any of these applications, this device should provide reliable power control and protection functions, ensuring the safety and integrity of the power system.

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