LM2747MTCX

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

LM2747MTCX is a peripheral module integrated circuit manufactured by Texas Instruments and belongs to the class of power management integrated circuits (PMIC) that are widely used in present day electronics and mobile devices. The device is included in the Voltage Regulators product family and more specifically, the DC-DC Switching Controllers section.

The LM2747MTCX device is designed for controlling constant-ON-time regulation of non-isolated buck converters. It supports input voltage ranges from 7V up to 42V and ensures an efficiency more than 95% given power dissipations <7W. This high performance element supports an adjustable frequency up to 2.2MHz, allowing the user to accurately tune the output performance.

The LM2747MTCX works primarily by means of two internal core components, the error amplifier and the current-sense comparator. The error amplifier is used to compare two analog voltages, the one coming from the regulator’s output (Vout) and the other one, an adjustable voltage reference. The relationship between these two parameters determines the output regulation system, according to the principles of the feedback control process.

The second core element, the current-sense comparator, has the purpose of monitoring the current that goes through the inductor and it performs a continuous comparison between the labeled threshold and the real time value. This comparison is done in order to keep the inductor current loop stable and avoid discontinuities on the buck switch working mode. Its main application area consists of consumer electronic equipment such as portable electronic devices and battery powered products.

The LM2747MTCX device has several safety features built in. One of these is the shutdown mode which will automatically turn the device off in case of any voltage, oscillator, or open-loop fault. Another feature is its short circuit protection which limits the inductor current when in fault and prevents the parts surrounding the device from being damaged. It also includes an internal current limit control which ensures a stable operation even in the presence of various power supply parameters.

The LM2747MTCX includes several system-level protection features including latch-off protection, automatic thermal shutdown, and hiccup mode current limit protection. It also provides selectable current limit in both transition modes and improved low operating temperature range. Some other features of the device include output under-voltage lockout, over temperature protection, and adjustable switching frequency with PG/EN pin.

In conclusion, the LM2747MTCX is an integrated circuit ideal for non-isolated buck converter regulation and monitoring. Its features ensure reliable protection and accurate results even when used in harsh environmental conditions with high variation on power supply inputs. Being mounted in the section of DC-DC Switching Controllers of the Voltage Regulators product family, this device is the perfect match for current-sense designs, particularly for battery-powered portable applications.

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