National Semiconductor Tariff Inquiry

LP3855ET-2.5

LP3855ET-2.5 Description

The LP3855ET-2.5 is a high-performance linear voltage regulator designed by National Semiconductor. This device is part of the Linear & Switching Voltage Regulators category and is specifically tailored for applications requiring a fixed positive output voltage of 2.5V. The regulator is designed to operate with an input voltage range up to 7V and can deliver a continuous output current of 1.5A. Its low dropout voltage of 0.38V at 1.5A ensures high efficiency even under low input-to-output voltage differentials.

The LP3855ET-2.5 features a quiescent current of 3 mA and a supply current of up to 10 mA, making it suitable for low-power applications. It also boasts a high power supply rejection ratio (PSRR) ranging from 73dB to 57dB at 120Hz, which helps in maintaining a stable output voltage under varying input conditions. The regulator includes an enable control feature, allowing for dynamic control of the output voltage, and incorporates protection features such as over-current, over-temperature, and short-circuit protection to ensure robust and reliable operation.

Packaged in a through-hole configuration, the LP3855ET-2.5 is suitable for a variety of industrial and consumer applications. Its moisture sensitivity level (MSL) is rated at 1 (unlimited), making it suitable for environments with varying humidity levels. The product is currently active and is REACH affected, ensuring compliance with environmental regulations.

LP3855ET-2.5 Features

• Fixed Positive Output Voltage: 2.5V, ensuring stable power supply for specific voltage requirements.
• High Input Voltage Range: Up to 7V, providing flexibility in input power sources.
• High Output Current Capability: 1.5A, suitable for applications requiring significant load current.
• Low Dropout Voltage: 0.38V at 1.5A, enhancing efficiency in low voltage applications.
• Low Quiescent Current: 3 mA, ideal for low-power and battery-operated devices.
• Enable Control Feature: Allows dynamic control of the output voltage, enhancing system flexibility.
• Protection Features: Over-current, over-temperature, and short-circuit protection ensure reliable operation under adverse conditions.
• High PSRR: Ranging from 73dB to 57dB at 120Hz, providing excellent noise rejection.
• Through-Hole Mounting: Suitable for a wide range of PCB assembly processes.
• Moisture Sensitivity Level: MSL 1 (unlimited), suitable for various environmental conditions.

LP3855ET-2.5 Applications

The LP3855ET-2.5 is ideal for a variety of applications where a stable and efficient power supply is required. Its fixed positive output voltage and high current capability make it suitable for:

• Consumer Electronics: Powering devices that require a stable 2.5V supply, such as smartphones, tablets, and portable gaming devices.
• Industrial Equipment: Providing reliable power to sensors, actuators, and control systems in industrial environments.
• Telecommunications: Supplying power to communication modules and base stations.
• Automotive Electronics: Ensuring stable power supply to electronic control units (ECUs) and infotainment systems.
• Medical Devices: Powering critical components in medical equipment where reliability and efficiency are paramount.

Conclusion of LP3855ET-2.5

The LP3855ET-2.5 is a versatile and high-performance linear voltage regulator that offers a combination of features and benefits tailored for a wide range of applications. Its fixed positive output voltage, high current capability, low dropout voltage, and comprehensive protection features make it an ideal choice for designers seeking a reliable and efficient power supply solution. The enable control feature and high PSRR further enhance its suitability for dynamic and noise-sensitive applications. With its robust design and compliance with environmental regulations, the LP3855ET-2.5 stands out as a reliable component in the electronics industry.