Texas Instruments

LP38843T-0.8

LP38843T-0.8 Description

The LP38843T-0.8 is a fixed-output linear voltage regulator designed by Texas Instruments, offering a robust solution for applications requiring a stable 0.8V output at up to 3A of current. This regulator is housed in a through-hole TO220-5 package, making it suitable for a variety of industrial and commercial electronics. Despite its obsolete status, the LP38843T-0.8 remains a reliable choice due to its high performance and comprehensive protection features.

LP38843T-0.8 Features

• Output Type: Fixed at 0.8V, ensuring a stable voltage supply for sensitive electronic components.
• Input Voltage Range: Capable of operating with input voltages up to 5.5V, providing flexibility in power supply design.
• High Output Current: Delivers up to 3A of current, making it suitable for high-power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.5V at 3A, the regulator maintains efficiency even under heavy load conditions.
• Low Quiescent Current: Consumes only 30 µA of quiescent current, minimizing power loss and enhancing overall system efficiency.
• High PSRR: Offers a power supply rejection ratio of 80dB to 65dB across the frequency range of 120Hz to 1kHz, ensuring minimal noise and ripple in the output voltage.
• Protection Features: Includes overcurrent, overtemperature, and short-circuit protections, safeguarding both the regulator and connected components.
• Enable Control Feature: Allows for dynamic control of the regulator’s operation, enabling power-saving modes and flexible system management.
• Moisture Sensitivity Level: MSL 1 (Unlimited), ensuring reliability in various environmental conditions.
• Compliance: REACH unaffected and ECCN classified as EAR99, meeting international regulatory standards.

LP38843T-0.8 Applications

The LP38843T-0.8 is ideal for a range of applications where a stable and efficient power supply is crucial. Its high output current and low dropout voltage make it particularly suitable for:

• Power Supply Units: In industrial and commercial electronics, where a reliable and efficient power supply is essential.
• Embedded Systems: For embedded devices requiring a stable 0.8V supply to power microcontrollers and other sensitive components.
• Telecommunications: In telecom equipment where high current and low noise are critical for maintaining signal integrity.
• Industrial Automation: For powering actuators, sensors, and control systems that demand high reliability and efficiency.

Conclusion of LP38843T-0.8

The LP38843T-0.8 from Texas Instruments is a high-performance linear voltage regulator that stands out due to its fixed 0.8V output, high current capability, and comprehensive protection features. Despite being marked as obsolete, its technical specifications and robust design make it a reliable choice for applications requiring a stable and efficient power supply. The low dropout voltage and high PSRR ensure minimal power loss and noise, enhancing the overall performance of the system. With its through-hole mounting and comprehensive protection features, the LP38843T-0.8 remains a valuable component in various industrial and commercial applications.