Texas Instruments

LP38841T-1.5

LP38841T-1.5 Description

The LP38841T-1.5 is a linear voltage regulator designed by Texas Instruments, offering a fixed output voltage of 1.5V with a maximum output current of 800mA. This regulator is housed in a through-hole TO220-5 package, making it suitable for a variety of applications where a reliable and stable power supply is required. Despite being marked as obsolete, the LP38841T-1.5 remains a robust choice for power management solutions due to its comprehensive feature set and performance capabilities.

LP38841T-1.5 Features

• Output Type: Fixed, ensuring a stable 1.5V output voltage.
• Input Voltage Range: Capable of operating with a maximum input voltage of 5.5V, providing flexibility in power source selection.
• Output Current: Delivers up to 800mA, making it suitable for applications requiring moderate power levels.
• Low Dropout Voltage: With a maximum dropout voltage of 0.21V at 800mA, the LP38841T-1.5 ensures efficient power conversion even at low input-to-output voltage differentials.
• Low Quiescent Current: Features a low quiescent current of 30 µA, minimizing power consumption during standby operation.
• High PSRR: Offers a high power supply rejection ratio (PSRR) ranging from 80dB at 120Hz to 65dB at 1kHz, effectively filtering out noise from the input power supply.
• Protection Features: Includes over-current, over-temperature, and short-circuit protection, enhancing reliability and safeguarding against potential faults.
• Enable Control: Provides an enable feature, allowing for dynamic control of the regulator's operation.
• Moisture Sensitivity Level: MSL 1 (Unlimited), indicating that the component is not sensitive to moisture, simplifying storage and handling requirements.
• Compliance: REACH unaffected, ensuring compliance with environmental regulations.
• Mounting Type: Through-hole, facilitating easy integration into various circuit designs.

LP38841T-1.5 Applications

The LP38841T-1.5 is ideal for a range of applications where a stable and efficient power supply is critical. Some specific use cases include:

• Consumer Electronics: Suitable for powering devices such as portable media players, digital cameras, and other portable electronics that require a stable 1.5V supply.
• Industrial Equipment: Ideal for use in industrial control systems, sensors, and actuators that demand reliable power management.
• Telecommunications: Can be used in communication devices and infrastructure where a fixed output voltage and moderate current are required.
• Automotive Applications: Applicable in automotive electronics for powering various subsystems, given its robustness and protection features.

Conclusion of LP38841T-1.5

The LP38841T-1.5 from Texas Instruments is a versatile linear voltage regulator that offers a combination of high performance and reliability. Its fixed 1.5V output, low dropout voltage, and comprehensive protection features make it an excellent choice for applications requiring a stable power supply. Despite its obsolete status, the LP38841T-1.5 remains a valuable component for engineers and designers seeking a dependable power management solution. Its low quiescent current and high PSRR further enhance its appeal, making it suitable for a wide range of consumer, industrial, and automotive applications.