LT3790HFE

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The LT3790HFE is a Step-Down, DC-to-DC Switching Controller in the Power Management Integrated Circuits (PMIC) voltage regulating family. This device provides a cost-efficient solution to an array of applications through its features, such as an I2C interface, adjustable frequency oscillator, adjustable current limit and thermal shutdown.

The LT3790HFE is a synchronous stepped-down switching regulator that works by regulating output voltage by a feedback loop. It contains two separate channels for the output and control ports. The output port receives an input voltage, which is then regulated with a feedback loop. The control port gives pulse width modulated (PWM) signals to the output port, controlling the load current.

The LT3790HFE also contains an I2C interface with host software control, which allows for a heightened level of precision and flexibility in voltage regulation. With the interface, users are able to set the voltage, current limit and oscillator in firm and reliable communication with the host device.

This switching controller offers the capability of adjustable frequency oscillator, allowing customers to adjust the frequency of the output waveform according to their needs and specifications. Additionally, the device provides an adjustable peak current limit feature to enable control of current in inductive load applications.

The LT3790HFE’s thermal shutdown works to protect both the device and the load by automatically shutting off the output whenever the junction temperature of the device becomes too high. With its wide input voltage range of 4.5V to 60V and output current of 2A, the LT3790HFE is suitable for a variety of applications. Examples of the wide range of applications which can utilize the LT3790HFE include:

• Battery chargers and power supplies
• LEDs and lamp drivers
• Motor drivers
• Industrial process controllers
• Automotive and consumer electronics

In conclusion, the LT3790HFE from Linear Technology\'s PMIC family is a reliable, cost-effective controller designed for power management applications, with features such as adjustable frequency oscillator and adjustable current limit. Furthermore, its I2C interface and thermal shutdown help to ensure accurate voltage regulation and protection of the device and load.

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