LM2735YMFX/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 LM2735YMFX/NOPB is a chip from Texas Instruments, based on their LM2735 Adjustable Frequency Synchronous Buck Regulating Controller. It is a DC-to-DC switching regulator that has a wide range of features, such as adjustable voltage and frequency settings, over-temperature protection, and low quiescent current, making it suitable for a variety of application fields. This page provides an overview of the chip’s application field and its working principle.

Application Field

The LM2735YMFX/NOPB is primarily used in various power management applications, such as LED lighting, server or datacenter power conversion, DC motor speed control, and industrial automation. The adjustable frequency and voltage settings of the device make it suitable for different power conversion applications, ranging from low to high power. Additionally, the device can also be used in automotive applications, such as in battery charger systems.

Working Principle

The LM2735YMFX/NOPB is an adjustable frequency synchronous buck regulator, which is primarily used to regulate the input voltage to a lower output voltage. At the heart of the device is a Buck regulator. This Buck regulator consists of two main parts: an On-state switch, which is typically implemented using an MOSFET, and a foldback loop that controls the switching frequency. The device also contains a number of other components, such as a current sensing circuit, an over-temperature protection circuit, and a set of voltage detectors and dividers.

The operation of the device starts with the input voltage being fed into the regulator. The foldback loop controls the switching frequency of the On-state switch, and this, in turn, regulates the output voltage. The output voltage is then monitored by the set of voltage detectors and dividers, and, depending on the voltage level, the controller will adjust the switching frequency in order to maintain the required output voltage. The current-sensing circuit is also used to monitor the current flowing through the switch, and if a fault is detected, the device will either shut off the output or go into a hiccup-mode.

The LM2735YMFX/NOPB is capable of operating in both continuous and discontinuous conduction modes and is also able to provide over-temperature protection. At high temperatures, when the device starts to exceed the rated temperature, the output voltage of the device will be automatically reduced, thus preventing further damage to the device.

Conclusion

The LM2735YMFX/NOPB is an adjustable frequency synchronous buck regulating controller, which is suitable for a variety of applications. Its features, such as adjustable voltage and frequency settings, over-temperature protection, and low quiescent current make it suitable for use in various power management applications, such as LED lighting, server or datacenter power conversion, DC motor speed control, industrial automation, and automotive applications. Its working principle revolves around a Buck regulator that regulates the input voltage to a lower output voltage, which is then monitored and adjusted by the voltage detectors and dividers, and current-sensing circuit.

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