ISL98602IRABZ-T7A

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	Controller/Converter, LCD Supply
Voltage - Input:	9.5 V ~ 15 V
Number of Outputs:	5
Voltage - Output:	Adjustable
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	40-VFQFN Exposed Pad
Supplier Device Package:	40-QFN (6x6)
Base Part Number:	ISL98602

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ISL98602IRABZ-T7A application field and working principlePMIC - Voltage Regulators - Special PurposeThe ISL98602IRABZ-T7A is a special-purpose voltage regulator that takes great advantages from both its versatile design and programmability. Featuring a constant frequency current mode design, it supports dual output topologies such as buck, FET bypass, SEPIC and low dropout. This tiny voltage regulator utilizes PWM control for power efficiency and also provides protection features for over current, short circuit, over temperature and over voltage.To better understand this special-purpose voltage regulator, it is important to have an overview of the application field and the working principle.Application FieldThe ISL98602IRABZ-T7A is suitable for applications such as phone chargers, communication equipment and industrial equipment, where low output voltage and high current capabilities are needed. The high efficiency of the device makes it ideal for battery-operated applications, in which power conservation is the primary focus. It also provides a low output drop-out voltage, which is beneficial for power sensitive applications.The ISL98602IRABZ-T7A presents several features such as fast response to line transients and load variations, as well as short-circuit/over-current protection, which make it a great fit for industrial applications that require increased safety for the power system.Working PrincipleThe ISL98602IRABZ-T7A features a constant frequency current mode design, which ensures a highly efficient operation and accuracy in voltage control. It also includes a PWM control that allows the device to achieve high efficiency by monitoring and controlling the switching cycle.The device is equipped with an internal power FET that is used to regulate the current and voltage to a desired level. The ISL98602IRABZ-T7A also features a flexible control loop that includes both current limit and programmable peak current mode control. In addition, it has both programmable under voltage and over voltage protection.Furthermore, the ISL98602IRABZ-T7A is equipped with a detection system that measures the voltage across the power FET. This system is used to detect a short circuit, which helps the device shut down the system before any damages occur.ConclusionThe versatile ISL98602IRABZ-T7A is an attractive special-purpose voltage regulator for a variety of applications. It exhibits low output voltage and high current capabilities, fast response to line transients and load variations, and short-circuit/over-current protection. It also has a constant frequency current mode design with a PWM control that helps it achieve great power efficiency. Overall, this device is sure to be effective in any environment that requires specialized and accurate power regulation.

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