Texas Instruments

LP3852ET-3.3  

Linear & Switching Voltage Regulators

LP3852ET-3.3 Description

The LP3852ET-3.3 is a fixed-output linear regulator designed by Texas Instruments, offering a stable 3.3V output voltage with a maximum output current of 1.5A. This regulator is housed in a TO220-5 package, making it suitable for through-hole mounting. It features a maximum input voltage of 7V and a low dropout voltage of 0.38V at full load, ensuring efficient power conversion even at low input-to-output voltage differentials. The LP3852ET-3.3 also includes an enable control feature, allowing for dynamic power management and reduced power consumption during standby modes.

LP3852ET-3.3 Features

• Fixed Output Voltage: Provides a stable 3.3V output, ideal for applications requiring a precise and consistent power supply.
• High Output Current: Capable of delivering up to 1.5A, making it suitable for powering demanding electronic devices.
• Low Dropout Voltage: With a maximum dropout voltage of 0.38V at 1.5A, the LP3852ET-3.3 ensures high efficiency and minimal power loss.
• Enable Control: Features an enable pin for dynamic power management, allowing the regulator to be turned on and off as needed.
• Protection Features: Includes over-current, over-temperature, and short-circuit protection, ensuring robustness and reliability in various operating conditions.
• Low Quiescent Current: Consumes only 3 mA in quiescent mode, minimizing power consumption during standby.
• High PSRR: Offers a power supply rejection ratio (PSRR) of 73dB to 57dB at 120Hz, effectively filtering out noise and ripple from the input power supply.
• Through-Hole Mounting: The TO220-5 package is designed for through-hole mounting, providing mechanical stability and ease of integration into printed circuit boards.

LP3852ET-3.3 Applications

The LP3852ET-3.3 is well-suited for a variety of applications where a reliable and efficient power supply is essential. Its fixed 3.3V output and high current capability make it ideal for:

• Embedded Systems: Providing stable power to microcontrollers, sensors, and other low-voltage components.
• Communication Equipment: Ensuring consistent power delivery to RF modules and communication interfaces.
• Industrial Control: Supplying power to PLCs, motor controllers, and other industrial electronics.
• Consumer Electronics: Powering devices such as set-top boxes, gaming consoles, and smart home appliances.

Conclusion of LP3852ET-3.3

The LP3852ET-3.3 from Texas Instruments is a robust and efficient linear regulator designed to meet the demands of modern electronic systems. Its fixed 3.3V output, high current capability, and low dropout voltage make it an excellent choice for applications requiring stable and efficient power management. The inclusion of enable control and comprehensive protection features further enhances its versatility and reliability. While the product is now obsolete, it remains a reliable option for legacy systems and applications where its unique features and performance benefits are still highly valued.

LP3852ET-3.3 Documents

Download datasheets and manufacturer documentation for LP3852ET-3.3

Datasheets :

LP3852, LP3855      

HTML Datasheet :

LP3852, LP3855