LT3790MPFE#TRPBF

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The LT3790MPFE#TRPBF is a multi-channel buck-boost converter with synchronous rectification. It is designed for automotive, avionics, industrial, medical and consumer applications and is capable of converting an input voltage from 2.9 V to 42 V to four independent output voltages from 0.8 V to 15 V. The converter employs an advanced current-mode architecture and is controlled via a Logic-level pin, allowing for easy integration and control. The converter is also capable of operating in both discontinuous and continuous conduction modes, providing a high level of efficiency and robust performance.

Introduction

The LT3790MPFE#TRPBF is an integrated switching controller that enables the design of a high-performance synchronous buck-boost regulation system. The device operates over a wide input-voltage range, allowing the design of power supplies with a wide operating range. The switching controller operates with a frequency of up to 1.5MHz to allow for faster response time and better noise immunity. In addition, the highly integrated features of the device enable a simpler, higher-performance power-supply design compared to discrete solutions. Furthermore, the device integrates a genuine current-mode architecture, providing fast transient response, precise output voltage regulation and high efficiency. With its impressive feature set and superior performance, the LT3790MPFE#TRPBF is the perfect choice for a wide range of applications which require precise voltage regulation.

Application Field

The LT3790MPFE#TRPBF is an ideal solution for applications in the automotive, avionics, industrial, medical and consumer markets. Its wide input voltage range and fast switching frequency make it suitable for high-temperature environments and challenging applications requiring a wide dynamic range. The device is also capable of operating in both continuous and discontinuous conduction modes, allowing for maximum efficiency in a variety of power-supply applications. Additionally, the switch controller offers integrated protection features, including over-voltage protection, over-current protection, and under-voltage lockout.

The LT3790MPFE#TRPBF is typically used in applications such as powering instrument clusters, gauge clusters, displays, camera modules, HVAC systems, and embedded systems. The device is also suitable for powering sensors and actuators in industrial, medical, and consumer applications. The device’s operating frequency and transient characteristics makes it suitable for automotive audio and video systems, while its integrated protection features ensure reliable operation in challenging environments. The wide input voltage range and fast switching frequency of the device make it suitable for use in applications with variable input voltage and high voltage transient loads.

Working Principle

The LT3790MPFE#TRPBF is a switching controller that converts an input voltage to four independent outputs. The device employs an advanced current-mode architecture, allowing for precise output voltage regulation, high-frequency operation and faster response time. The robust protection features of the device ensure reliable operation, while the integrated synchronous rectification feature helps to improve overall efficiency.

The device is controlled via a Logic-level pin and is capable of operating at a switching frequency of up to 1.5MHz. It also allows for the operation in both continuous and discontinuous conduction modes, allowing for maximum efficiency. Furthermore, the device offers two power-saving operating modes which can be used to reduce the input quiescent current and standby current.

The LT3790MPFE#TRPBF is an integrated synchronous buck-boost switching controller that is well suited for a variety of automotive, avionics, industrial, medical and consumer applications. Its wide input-voltage range, fast switching frequency and current-mode architecture make it a great choice for applications requiring high-efficiency, precise voltage regulation and fast transient response.

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