Texas Instruments

LP38841MR-ADJ  

Linear & Switching Voltage Regulators

LP38841MR-ADJ Description

The LP38841MR-ADJ is a linear positive adjustable voltage regulator designed by Texas Instruments, offering a versatile solution for power management applications. This regulator is part of the Power Management Integrated Circuit (PMIC) category and features an adjustable output voltage ranging from 0.56V to 1.5V, making it suitable for a wide range of electronic devices. The LP38841MR-ADJ supports a maximum input voltage of 5.5V and can deliver up to 800mA of output current, ensuring robust performance in various power-sensitive applications.

LP38841MR-ADJ Features

• Adjustable Output Voltage: The LP38841MR-ADJ provides an adjustable output voltage from 0.56V to 1.5V, offering flexibility to meet specific application requirements.
• High Current Capability: With a maximum output current of 800mA, this regulator can efficiently power demanding devices.
• Low Dropout Voltage: The maximum dropout voltage is only 0.21V at 800mA, ensuring high efficiency even at low input-to-output voltage differentials.
• Low Quiescent Current: The regulator operates with a quiescent current of 30 µA, minimizing power consumption during standby or low-load conditions.
• High PSRR: The Power Supply Rejection Ratio (PSRR) ranges from 80dB at 120Hz to 65dB at 1kHz, effectively filtering out noise from the input supply.
• Protection Features: The LP38841MR-ADJ includes over-current, over-temperature, and short-circuit protection, safeguarding both the regulator and the connected circuitry.
• Enable Control: The regulator features an enable control pin, allowing for dynamic power management and shutdown capabilities.
• Surface Mount Packaging: The LP38841MR-ADJ is available in a surface mount package, facilitating easy integration into compact and high-density designs.

LP38841MR-ADJ Applications

The LP38841MR-ADJ is ideal for a variety of applications where precise voltage regulation and high efficiency are critical. Some specific use cases include:

• Portable Electronics: Ideal for powering devices such as smartphones, tablets, and wearables, where low power consumption and small form factors are essential.
• Battery-Powered Devices: Suitable for applications requiring efficient power management from battery sources, ensuring extended battery life.
• Industrial Equipment: Can be used in industrial control systems and instrumentation where reliable power regulation is required.
• Medical Devices: Applicable in medical equipment that demands precise voltage control and low noise for accurate measurements and operations.

Conclusion of LP38841MR-ADJ

The LP38841MR-ADJ from Texas Instruments stands out as a reliable and efficient linear voltage regulator, offering adjustable output voltage, high current capability, and low dropout voltage. Its low quiescent current and high PSRR make it an excellent choice for applications requiring minimal power consumption and noise filtering. The inclusion of comprehensive protection features and enable control further enhances its versatility and reliability. Despite being marked as obsolete, the LP38841MR-ADJ remains a valuable component for designers seeking a high-performance power management solution in a compact surface mount package.

LP38841MR-ADJ Documents

Download datasheets and manufacturer documentation for LP38841MR-ADJ