XRP7740ILB-0X18-F

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The XRP7740ILB-0X18-F is an integrated Load Switch from ETCorp and it is widely used in different applications. In this article, we will explore the application field and principle of XRP7740ILB-0X18-F.

The XRP7740ILB-0X18-F belongs to the PMIC (Power Management Integrated Circuit) category. More specifically, it is classified under Voltage Regulators - Linear + Switching. It is an integrated Load Switch for Linear Voltage Regulators, such as the MAX7740. It features adjustable over-temp protection, configurable over-voltage protection, as well as low power and minimal external parts count.

Application Field

The XRP7740ILB-0X18-F is primarily used for switching between multiple power sources. It can be used in both linear and switching voltage regulators and is ideal for applications that require low power and minimal external components. Some of the common applications of the XRP7740ILB-0X18-F include:

• Battery/Power Management in notebook computers and other portable devices.
• Cellular phone power management.
• Powering of small embedded systems, such as industrial and medical equipment.

Working Principle

The primary purpose of the XRP7740ILB-0X18-F is to switch between different power sources. It does so by actuating the MOSFET switch, which is connected to two external supply sources. The MOSFET switch is actuated by the on-chip comparator, which is capable of sensing the voltage of both supply sources.

When the voltage of the first supply source is higher than the second supply source, the comparator will actuate the MOSFET switch in order to switch the power source to the higher voltage source. Conversely, when the voltage of the second supply source is higher than the first supply source, the comparator will actuate the MOSFET switch in order to switch the power source to the lower voltage source.

In addition, the XRP7740ILB-0X18-F also features adjustable over-temp protection and configurable over-voltage protection. The over-temp protection prevents the device from exceeding its rated temperature, while the over-voltage protection prevents the device from supplying too much voltage to the load. These features allow for improved reliability and safety in the system.

To sum up, the XRP7740ILB-0X18-F is an integrated Load Switch from ETCorp. It is primarily used for switching between different power sources and is capable of sensing the voltage of both supply sources. It also includes adjustable over-temp protection and configurable over-voltage protection, which allows for improved reliability and safety in the system.

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