LM5041ASDX/NOPB

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LM5041ASDX/NOPB is a versatile, high-performance, synchronous buck switching controller specifically designed to deliver the high efficiency required for battery-operated applications. By employing a peak current mode architecture, the LM5041ASDX/NOPB is capable of providing high load regulation with excellent load and line transient response. Additionally, the LM5041ASDX/NOPB offers a unique feature called Controlled On-Time (COT™), also known as Dynamic Voltage Scaling (DVS). This allows designers to easily adjust the operational frequency and the output voltage to maximize efficiency while maintaining robust loop stability across a wide range of operating conditions.

The LM5041ASDX/NOPB is the latest version of the LM5041 switching controller series. It boasts the addition of two new features that are central to application in the battery-powered market segment. The newly added internal PWM dimming selectable frequency range from 200 kHz to 2 MHz enables more flexibility in system design and contributes to better performance. The integrated current monitoring allows designers to implement system level protections for various over-current and short-circuit conditions.

The LM5041ASDX/NOPB switching controller enables designers to reduce component count and board space while maintaining ultra-low-cost and high-efficiency performance. Moreover, it provides a comprehensive suite of features that are compatible with point-of-load and non-isolated voltage regulator designs.

Application Field

The LM5041ASDX/NOPB switching controller is ideal for applications that need an efficient, high-performance solution that can deliver reliable, accurate power conversion. It can be used with a wide range of input sources, including DC and AC, to create low voltage, high current DC output stages for a variety of applications. These include high-end servers, notebook computers, IEEE 802.11ac access points, cellular base stations, broadband line cards, desktop computers, industrial control and automation systems, telecom equipment, routers, and many other devices.

In addition, the integrated current monitoring feature allows for system level protections for various over-current and short-circuit conditions. This makes it an ideal choice for high-reliability designs. With its small form factor and integrated features, the LM5041ASDX/NOPB makes it easy to create a complete power cascade solution.

Working Principle:

The LM5041ASDX/NOPB switching controller works by converting a low voltage, high current output stage into a regulated DC output. The integrated PWM control oscillator is used to generate a train of pulses that control the duty cycle of the output switch. The duty cycle determines the output voltage level while the switching frequency is programmed to maximize efficiency and minimize noise. The device also has an integrated current monitoring feature that allows designers to implement system level protections for various over-current and short-circuit conditions.

The LM5041ASDX/NOPB is designed to prevent output over-voltage by using a combination of current and voltage feedback loops. These provide a fast transient response and excellent line regulation. Additionally, the device features adjustable soft-start and adjustable deadtime that reduce in-rush current and output voltage overshoot. Furthermore, the device also integrates a power-good signal, which allows designers to detect when the output voltage is within its accurate range.

Finally, the LM5041ASDX/NOPB offers an additional advantage; the Dynamic Voltage Scaling (DVS) feature allows the designer to reduce the output voltage to maximize efficiency and minimize power dissipation. This can be used to tailor the output voltage to achieve the optimal performance for a specific application.

The specific data is subject to PDF, and the above content is for reference