LT3752HFE#PBF

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Introduction: The LT3752HFE#PBF is a DC-DC switching controller that operates in both step-up and step-down configurations. It is a highly efficient, cost-effective, monolithic voltage regulator that is optimized for low-voltage applications. The LT3752HFE#PBF deliver excellent transient performance with an integrated MOSFET driver and internal regulation loop for high-current switching.

Application Field: The LT3752HFE#PBF is ideal for low-voltage power applications. The LT3752HFE#PBF can be used in a variety of applications such as various types of battery chargers and portable device power supplies. It can also be used to power low-voltage DC-DC converters, or as a pre-regulator for high-current dc-dc step-down or step-up converters.

Working Principle: The LT3752HFE#PBF starts in its step-up mode when the input voltage is below the given setpoint. When the input voltage reaches the setpoint, the controller switches to its step-down mode. In step-down mode, the LT3752HFE#PBF supplies a regulated output voltage up to the designed peak current. When the output current decreases below its designed peak value, the controller transitions to its low-current skip mode. In low-current skip mode, the output voltage remains constant and the controller switches from step-up/step-down mode to low-current skip mode depending on the load demand.

Features: The LT3752HFE#PBF provides excellent transient response and is designed to operate over an extended temperature range, making it ideal for portable applications. Other features include short-circuit and over-voltage protection, an internal soft-start circuit, and adjustable current limit. The LT3752HFE#PBF is available in a 2.0mm x 2.5mm footprint, making it suitable for use in tight spaces.

Conclusion: The LT3752HFE#PBF is an efficient DC-DC switching controller that is well-suited for low-voltage power applications. Its comprehensive protection features, adjustable current limit, and internal soft-start circuit make it an ideal choice for battery chargers, portable device power supplies, and other low-voltage power applications.

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