LTC4355IS#PBF

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The LTC4355IS#PBF is a very important integrated system component within the market today. It is part of the Power Management Integrated Circuit (PMIC) family and it serves to help regulate power within devices, protect them from under-voltage conditions, and to control user interfaces. In this article, we will explore the application field and working principle of the LTC4355IS#PBF so that design engineers can better understand its capabilities and better utilize it for their projects.

The LTC4355IS#PBF is used as an OR controller and Ideal Diode for both AC and DC applications. It is a three-terminal device that integrates a Sotd-49 package to operate from a wide range of input voltages and temperatures. Its low power consumption and superior performance make it well suited for both portable and fixed equipment applications.

As an OR controller, the LTC4355IS#PBF provides a simple solution to controlling the power supply of a device. It can be provided with either an ORing MOSFET or a P-channel MOSFET, depending on the desired application. It monitors the input voltage at each of its three terminals and quickly switches between the two supplies to provide the optimal power supply. This can be invaluable in the event of an unexpected power outage or if the device is being operated at too low of a voltage.

As an Ideal Diode, the LTC4355IS#PBF performs similarly to a diode in that it blocks reverse current and disabling any other connected loads when one of the two power supplies is removed. This prevent damage in the case of a temporary power or voltage loss.

The device also includes a selectable slow-start power sequencing feature. This allows the user to set up a sequence of events when power is supplied or removed. This can be used to prevent the device from drawing excessive power during startup or from experiencing a sudden power loss.

The LTC4355IS#PBF is a great example of the power of PMICs and their versatility. Its OR controller and Ideal Diode functions make it well suited for AC and DC applications, providing great power protection and switching to the optimal power source. Its small size and low power consumption also make it a great choice for small, portable devices. Design engineers should be aware of the capabilities and features of the LTC4355IS#PBF and its benefits when choosing to use it in a design.

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