KA7805AETSTU

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KA7805AETSTU is a 5V Linear Voltage Regulator, specifically designed to be part of power management integrated circuits (PMICs) solutions. It is able to provide the 5V voltage output at up to 800mA, while maintaining a high accuracy over a wide temperature range.

The KA7805AETSTU regulator gets the input voltage from a power source, typically a battery, and gives out a regulated 5 volt output with excellent regulation over a wide input range of 2.7 V to 6 V. This regulator features current limit, thermal shutdown, reverse battery protection, and input/output over-voltage protection.

KA7805AETSTU can be found in a variety of modern consumer products, such as smartphones, tablets, and other handheld mobile devices. It is often used to provide power for onboard circuits, such as the baseband processor, camera, and display from the battery. It can also be used in an array of other applications, such as point of sale (POS) systems, industrial equipment, automotive, and medical machines.

The working principle of KA7805AETSTU regulator is based on the principle of operation of a voltage regulator using a series pass transistor. This type of regulator passes a predetermined current through a resistor placed in series between the input and output. The resistor is chosen to ensure that the maximum amount of current can pass through the regulator without exceeding the maximum allowable voltage. A steep negative feedback loop is used to alter the resistance depending on the current it has to regulate. Thus the output voltage is maintained even while the input voltage varies.

In consideration of the product’s temperature range, thermal shut down feature is incorporated. When the internal circuit temperature or the junction temperature increases beyond normal range, the internal circuitry will disconnect the output from the input, thus shutting down the regulator.

The KA7805AETSTU device also has adjustable current limit feature that sets the maximum current that the device can safely operate at. In the event of a current overload situation, the current limit feature kicks in and shuts down the regulator. This makes the KA7805AETSTU a safe and robust Power Management Integrated Circuit (PMIC) solution.

The KA7805AETSTU adds superior reliability to the Power Management Integrated Circuits (PMICs) solutions and has the potential to revolutionize the product designs of the future. It is an ideal solution for applications with demanding accuracy requirements, such as automotive and medical machines. Furthermore, its current limit feature offers a cost effective solution to prevent system failures in the event of an overload situation.

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