LM3668SD-2833EV/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

Evaluation Boards - DC/DC & AC/DC (Off-Line) SMPS provide an easy and effective way of connecting power supplies to device. The LM3668SD-2833EV/NOPB is one of the latest applications in this field and provides an extensive range of features to the user. Here, we would like to take a closer look at LM3668SD-2833EV/NOPB application field and working principle.

LM3668SD-2833EV/NOPB Application Field and Working Principle

The LM3668SD-2833EV/NOPB is designed for switch mode power (SMPS) applications. This power solution is typically used in automotive, communications, industrial, medical, and consumer electronics applications. This application is aimed at providing a simple solution to bridge the gap between DC power sources and devices. The board provides the user with a convenient interface, simplifying integration.

Working Principle

The device operates in a simple buck topology to control the transfer of power between the input voltage and the load.In such architecture, a rectified power supply is fed into the input of the device (VIN), which is then driven by a single external MOSFET. This external MOSFET is rated at 28 V and is designed to provide a low output ripple. As the DC voltages are rectified, the output voltage is kept in check to regulate the current.

The device is also equipped with a synchronous MOSFET, which is responsible for regulating the output current to the load. The external MOSFET is also connected to an onboard controller, which can regulate switching frequency (ranging from 200 kHz to 500 kHz), allowing for maximum efficiency and providing various protection features. This includes thermal shutdowns, short-circuit protection, overvoltage protection, and many others.

In order to provide maximum efficiency, the device uses an adaptive voltage scaling feature. This is a frequency modulated scheme that adjusts the switching frequency according to the input voltage, ensuring power efficiency, and preventing current and voltage spikes.

Benefits

The LM3668SD-2833EV/NOPB application is designed to provide benefits in various sectors. It has been found to be highly effective in automotive, communications, industrial, medical, and consumer electronics applications, as well as many other applications, due to its flexible and efficient design. Here are some of the benefits.

• High voltage efficiency: The device has an efficiency rating of up to 95%, meaning that it can return maximum results from the input voltage.
• Low output ripple: The synchronous MOSFET can generate a low output ripple, ensuring better device performance.
• High reliability: The device is reliable and designed to withstand short-circuit and overvoltage conditions.
• High switching frequency: The device allows for switching frequencies of up to 500 kHz, allowing for higher power efficiency.
• Low standby power: The device has a low overhead, allowing for lower standby power consumption.
• Adaptive voltage scaling: The device features a voltage scaling feature that helps adjust the switching frequency according to the input voltage.

Conclusion

The LM3668SD-2833EV/NOPB Evaluation Board offers a great solution for applications in a wide array of industries. The device is designed with a fine blend of features, including a high efficiency rating, low output ripple, and adjustable switching frequencies. This allows for a simple and efficient connection between the power source and the load. With its simple design, the device is highly reliable and cost-efficient, making it ideal for a variety applications.

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