LTC3890IUH-2#TRPBF

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The LTC3890IUH-2#TRPBF is a synchronous step-down switch controller. It features the Burst Mode operation and is capable of achieving high efficiency and superior thermal performance. The device can operate over a wide input voltage range up to 65V. Its internal switching frequency is programmable from 300kHz to 3MHz. The LTC3890IUH-2#TRPBF also includes features such as an adjustable soft start, a power good indicator, and overtemperature shutdown.

This DC-DC switch controller is a popular choice for applications that require high efficiency, tight regulation, and superior thermal performance. It is typically used in industrial, computing, communications, automotive, and medical applications. It has been designed to work with industrial grade, low output voltage and high load current applications.

The working principle of the LTC3890IUH-2#TRPBF is based on the synchronous step-down topology. This topology is capable of achieving high efficiency and superior thermal performance with less complexity than other topologies. The device employs a current mode control scheme which includes a low-side driver and a high-side driver. The low-side driver is responsible for operating the low-side switches while the high-side driver is responsible for operating the high-side switches.

The output voltage of the device is adjustable via an analog voltage input. The analog voltage input can be used to set the reference current level and it can also be used to set the peak current limit. The device has two levels of current limiting to provide flexible protection features. The over-current threshold and the over-temperature threshold can be adjusted via external resistors.

The LTC3890IUH-2#TRPBF also includes additional features such as an adjustable soft start, a power good indicator, and overtemperature shutdown. The soft start feature provides an inrush current limiting for initial load surge protection. The device also has a built-in power good indicator that is used to indicate an undervoltage or overvoltage condition. Finally, the overtemperature shutdown feature provides protection in the event of an over temperature condition.

In summary, the LTC3890IUH-2#TRPBF is a synchronous step-down switch controller. It features the Burst Mode operation and it is capable of achieving high efficiency and superior thermal performance. The device has a wide input voltage range and it is suitable for high load current applications. The device also includes features such as an adjustable soft start, a power good indicator, and overtemperature shutdown to provide flexible protection features.

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