LM5025BSD

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The LM5025BSD is one of the DC-DC switching controllers offered by the LM5025BSD family of ICs. These ICs provide an efficient, power-efficient way of managing energy and power delivery in industrial, automotive, and communications applications.

The LM5025BSD is known as a fixed-frequency, non-isolated synchronous step-down controller. It supports multiple control modes, such as fixed frequency constant on-time, fixed off-time, and two-step control. The LM5025BSD will regulate the output voltage in order to stay within a specified window, and can work in an open-loop or closed-loop mode. It is capable of supporting a wide input voltage range and can support output voltages from 1.0 V up to 45 V.

The IC implements a current-mode PWM controller and uses synchronous rectification to achieve high efficiency and reduce the number of external components required. It has an on-chip termination circuit and a fault-detection circuit for monitoring of faults. It also features integrated MOSFET drivers, enabling it to drive both low-side and high-side MOSFETs.

The LM5025BSD is versatile and capable of handling a wide variety of load conditions, including high current loads, high fan loads and motor runs. It also has a power-good signal output and a programmable soft-start function to reduce inrush current. It includes an internal oscillator, an internal 100 kHz clock, an enable pin, and a synchronous rectification control pin.

The LM5025BSD can be used in a variety of applications, including on-/off-board power supplies, DC-to-DC converters, LED drivers, and battery chargers. In each application, it requires an external sense resistor to sense the output current and set the duty cycle. The IC can output current of up to 5A, making it ideal for applications where high current delivery is needed.

In summary, the LM5025BSD is a cost-effective DC-DC switching controller. Its wide input voltage range, high-level of integration and multiple control modes make it suitable for a variety of applications. Its low noise, low switching frequency, low component count and excellent efficiency make it a smart choice for controlling DC to DC conversion.

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