Texas Instruments

LP38843SX-1.2  

Linear & Switching Voltage Regulators

LP38843SX-1.2 Description

The LP38843SX-1.2 is a linear regulator designed for high-performance power management applications. Manufactured by Texas Instruments, this regulator offers a fixed output voltage of 1.2V with a maximum output current of 3A. It is housed in a DDPAK/TO263-5 package, which is ideal for surface mount applications. The LP38843SX-1.2 is designed to operate with an input voltage range up to 5.5V, making it suitable for a variety of power supply configurations. With a dropout voltage of only 0.5V at 3A, this regulator ensures high efficiency even under heavy load conditions.

LP38843SX-1.2 Features

• Output Type: Fixed at 1.2V, ensuring a stable power supply for sensitive electronics.
• Input Voltage Range: Up to 5.5V, providing flexibility in power source selection.
• Output Current: Capable of delivering up to 3A, suitable for high-current applications.
• Low Dropout Voltage: 0.5V at 3A, minimizing power loss and enhancing efficiency.
• Quiescent Current: Only 30 µA, reducing power consumption in standby mode.
• Power Supply Rejection Ratio (PSRR): 80dB to 65dB across 120Hz to 1kHz, ensuring minimal noise and ripple in the output voltage.
• Control Features: Includes an enable function, allowing for precise control over the regulator's operation.
• Protection Features: Over-current, over-temperature, and short-circuit protection ensure robustness and reliability.
• Compliance: ROHS3 compliant and REACH unaffected, meeting stringent environmental and safety standards.
• Moisture Sensitivity Level (MSL): Level 3 (168 hours), suitable for various manufacturing environments.

LP38843SX-1.2 Applications

The LP38843SX-1.2 is well-suited for a range of applications where high efficiency, low noise, and robust protection features are required. Some specific use cases include:

• Consumer Electronics: Ideal for powering sensitive components in devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Suitable for applications requiring stable and efficient power supply, such as PLCs and automated machinery.
• Telecommunications: Can be used in base stations and networking equipment where reliability and low noise are critical.
• Automotive Electronics: Applicable in automotive infotainment systems and electronic control units due to its robust protection features and compliance with industry standards.

Conclusion of LP38843SX-1.2

The LP38843SX-1.2 from Texas Instruments stands out as a high-performance linear regulator with a fixed 1.2V output and a maximum output current of 3A. Its low dropout voltage and high PSRR make it an excellent choice for applications requiring high efficiency and low noise. The inclusion of enable control and comprehensive protection features further enhances its versatility and reliability. With its surface mount package and compliance with environmental standards, the LP38843SX-1.2 is a robust solution for a wide range of power management needs.

LP38843SX-1.2 Documents

Download datasheets and manufacturer documentation for LP38843SX-1.2

Datasheets :

LP38843      

Design Resources :

LP38843 Design with WEBENCH® Power Designer      

PCN Obsolescence/ EOL :

EOL 18/Sept/2023      

HTML Datasheet :

LP38843