LM25088MH-2/NOPB

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The LM25088MH-2/NOPB is a stepdown switching DC/DC controller. It is a highly integrated, high efficiency current mode switching regulator with advanced features such as prebias compatibility, internal soft start, rapid loop compensation, shutdown control, foldback current limit, and >95% peak efficiency over a wide input voltage range. It is designed for step down isolated DC/DC conversion in applications that require precise control of the output voltage and current. The LM25088MH-2/NOPB is a field-effect transistor (FET) gate driver that not only provides the necessary gate drive for the external high side and low side FETs to optimize efficiency but also senses the voltage across the high side FET to provide accurate output voltage regulation.

This DC/DC switching controller utilizes a two-stage architecture to provide high efficiency, with one control loop to sense and regulate the output voltage and another, higher speed loop to sense the switching current. It combines high performance, high reliability and low cost, making it ideal for a variety of application fields. The device is capable of synchronizing to an external clock of up to 500kHz, and can also be operated in either an open loop or closed loop mode.

The LM25088MH-2/NOPB is designed to operate with a wide range of external components, allowing for maximum system optimization. Internal control loops for soft start, loop compensation, current limit and voltage regulation ensure a smooth and consistent response to dynamic load changes. It is ideal for use in applications such as high voltage power supplies, RF power amplifiers, automotive systems, and industrial control systems.

The LM25088MH-2/NOPB integrates high-side and low-side FET drivers into a single voltage regulator controller solution. It is designed to drive an external N-CMOS FET, satisfying the performance requirements for efficiency, line regulation, and transient response. The integrated drivers can also provide improved margins in optimizing the loop compensation, enabling smoother system performance and better dynamic response.

The device is engineered to operate over a wide range of conditions. It has over current protection, thermal shutdown, and supply under voltage lockout, which allows the device to be safely used in harsh environment conditions. The device is rated up to a maximum operating temperature of 125°C, or a minimum operating temperature of -40°C. The device has excellent ESD immunity, as well as EMC compliance.

The overall logic architecture of the LM25088MH-2/NOPB provides up to 95-98% efficiency for power transfer, making it an especially suitable option for supplying power to high efficiency, low voltage systems. It features a wide output voltage range from 0.8V to 5.5V, and is capable of delivering up to 2.5A of continuous output current, with a peak of 8A for up to 160ms. For typical step down applications, a boost diode can also be added for <500kHz applications.

In addition, the LM25088MH-2/NOPB can also be configured for other types of voltage regulation applications. It can be used to provide either adjustable or fixed-mode step-up or step-down voltage regulators, as well as battery chargers and voltage followers. The device has an integrated oscillator which allows for operation at up to 500kHz, allowing for efficient power conversion.

LM25088MH-2/NOPB is an incredibly versatile switching DC/DC controller with impressive performance and high reliability. Its wide range of regulation and synchronization capabilities make it ideal for a number of different applications, including high voltage power supplies, RF amplifiers, automotive systems, and industrial control systems. With excellent ESD protection, high efficiency, and the ability to be configured for different voltage regulation tasks, the LM25088MH-2/NOPB is the gold standard for this type of controller.

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