LP3963ESX-5.0

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LP3963ESX-5.0 is a linear voltage regulator with excellent low dropout abilities. It is a low-cost, low-power voltage regulation device that operates over a wide input voltage range, and is capable of providing a stable output voltage for a wide range of operating conditions. The device can be used for power regulation in a variety of applications such as portable electronics, automotive systems and home appliances. The LP3963ESX-5.0 offers excellent protection against overvoltage, overcurrent and short circuit conditions, making it an ideal choice for reliable power regulation.

Features

• Wide operational input range: 1.4 V to 5.5 V
• Maximum output current of 5 A
• Ultra-low dropout voltage at light load: 0.2 V
• Programmable current limit and over voltage protection
• Low quiescent current in standby mode
• Thermal protection with auto-restart function
• Compact 8-lead MSOP package

Applications

• Automotive electronics
• Portable electronic devices
• Notebook computers
• Smart phones
• Home appliances

Working Principle

LP3963ESX-5.0 is an adjustable linear voltage regulator with a wide input voltage range of 1.4V to 5.5V and a maximum output current of 5A. The device uses a voltage-division technique to precisely adjust the output voltage. The feedback voltage is compared with a reference voltage in an error amplifier and the result of this comparison is used to control a pass device. The pass device is connected between the input voltage and the output voltage, which allows the device to adjust the output voltage to the desired level. The pass device, also called a series regulator, dissipates heat generated by the current flowing through it.

The LP3963ESX-5.0 includes several protection features to help ensure safe operation under various conditions. The device includes over-current protection, over-voltage protection, thermal protection and short-circuit protection. The device also has adjustable current limit and voltage limit, allowing the user to select the maximum output current and voltage level.

Conclusion

The LP3963ESX-5.0 is a low dropout linear voltage regulator with a wide input voltage range and a maximum output current of 5A. It features over-current and over-voltage protection, thermal protection and adjustable current limit and voltage limit, making it suitable for reliable power regulation in a variety of applications such as automotive electronics, portable electronics, notebook computers, smartphones and home appliances.

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