LT3752EFE-1

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The LT3752EFE-1 belongs to the PMIC (Power Management Integrated Circuit) class of Voltage Regulators, more specifically the DC DC Switching Controllers. The device is a dual buck controller with synchronous rectification, fixed frequency, cycle-by-cycle current limit, internal soft-start and output voltage tracking. The LT3752EFE-1 operates at high power density, low output noise and minimum external parts count, maintaining tight loop control over current, voltage and thermal range, making it an ideal choice for modern power conversions.

The LT3752EFE-1 has a wide input voltage range from 4.75V to 100V. It is capable of delivering up to 3A max output current in each channel and it can work in two different switching modes – continuous and discontinuous. The automatic low power mode reduces the power consumption significantly during no-load conditions. The device incorporates an advanced post-regulator stage for high accuracy and efficient operation. The LT3752EFE-1 is available in a space-savings 3mm×3mm 8-bump micro SMD package and is Pb-free.

The LT3752EFE-1 is suitable for applications such as LED lighting, servers, networking, telecom, automobiles, audio amplifiers and LCD TVs. It provides an efficient interconnection between input sources and the loads. The device can also be used in battery charger and other portable designs. Additionally, it is also suitable for hot-swapping, battery back-up and supply cascading with its low voltage operation.

The LT3752EFE-1 operates on two principles – switching and regulation. The switching mode works by varying the frequency and duty cycle of the input voltage to maintain a stable voltage output. In the regulation mode, the input voltage is kept constant, and the output voltage is regulated by sensing changes in the output current, and compensating by altering the duty cycle of the input voltage accordingly.

The LT3752EFE-1 can be used in stand-alone or synchronous buck applications and can be configured with two or four power stages. The device supports Run and Enable functions, which can be controlled by an external signal or by logic inputs within the device, allowing dynamic control over the converter’s operation. The LT3752EFE-1 also has special features such as cycle-by-cycle current limiting, hiccup-mode short-circuit protection, over-voltage protection, over-temperature warning, and output voltage tracking.

The LT3752EFE-1 is a highly efficient and modern power supply controller, suitable for a variety of applications and capable of meeting the energy requirements of high power applications. It provides secure, precise and low-cost power conversion solution, enabling efficient and reliable operation. The device is an ideal choice for cost-sensitive, advanced power management applications.

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