Texas Instruments

LP38842MR-ADJ

LP38842MR-ADJ Description

The LP38842MR-ADJ is a linear voltage regulator designed by Texas Instruments, offering adjustable output voltage capabilities. This regulator is ideal for applications requiring a stable and efficient power supply with a maximum input voltage of 5.5V and a maximum output current of 1.5A. The LP38842MR-ADJ features a low dropout voltage of 0.115V at 1.5A, ensuring high efficiency even at low input-to-output voltage differentials. With a quiescent current of just 30 µA, the regulator is well-suited for low-power applications. It also includes essential protection features such as over-current, over-temperature, and short-circuit protection, enhancing its reliability and robustness.

LP38842MR-ADJ Features

• Adjustable Output Voltage: The LP38842MR-ADJ provides an adjustable output voltage ranging from 0.56V to 1.5V, offering flexibility to meet various application requirements.
• Low Dropout Voltage: With a maximum dropout voltage of 0.115V at 1.5A, this regulator maintains high efficiency across a wide range of input voltages.
• Low Quiescent Current: The regulator features a low quiescent current of 30 µA, making it suitable for battery-powered and low-power applications.
• Protection Features: Over-current, over-temperature, and short-circuit protection ensure the regulator's reliability and longevity.
• Enable Control: The enable feature allows for dynamic control of the regulator's operation, enhancing power management capabilities.
• High PSRR: The regulator offers a high power supply rejection ratio (PSRR) of 58dB to 80dB across a frequency range of 120Hz to 1kHz, ensuring clean output voltage.
• Surface Mount Packaging: The LP38842MR-ADJ is available in a surface mount package, facilitating easy integration into compact designs.

LP38842MR-ADJ Applications

The LP38842MR-ADJ is well-suited for a variety of applications where a stable and efficient power supply is critical. Its adjustable output voltage and low dropout characteristics make it ideal for portable devices, consumer electronics, and industrial systems. Specific use cases include:

• Portable Devices: Ideal for battery-powered devices such as smartphones, tablets, and wearables, where efficient power management is essential.
• Consumer Electronics: Suitable for applications like smart home devices, gaming consoles, and multimedia systems that require stable power supply.
• Industrial Systems: Applicable in industrial control systems, sensors, and IoT devices where reliability and efficiency are paramount.

Conclusion of LP38842MR-ADJ

The LP38842MR-ADJ from Texas Instruments is a versatile and efficient linear voltage regulator designed to meet the demands of modern electronics. Its adjustable output voltage, low dropout, and low quiescent current make it an excellent choice for a wide range of applications. The inclusion of advanced protection features and enable control further enhances its reliability and flexibility. Despite being marked as obsolete, the LP38842MR-ADJ remains a robust solution for applications requiring a stable and efficient power supply.