Texas Instruments

LP38852SX-ADJ  

Linear & Switching Voltage Regulators

LP38852SX-ADJ Description

The LP38852SX-ADJ is a linear voltage regulator designed by Texas Instruments, offering an adjustable output voltage range from 0.8V to 1.8V with a maximum output current of 1.5A. This regulator is optimized for high performance in a compact surface-mount package, making it suitable for a wide range of applications requiring precise voltage regulation. With a maximum input voltage of 5.5V and a low dropout voltage of 0.18V at 1.5A, the LP38852SX-ADJ ensures efficient power delivery even under varying load conditions.

LP38852SX-ADJ Features

• Adjustable Output Voltage: The LP38852SX-ADJ provides an adjustable output voltage range from 0.8V to 1.8V, allowing flexibility in power supply design.
• High Output Current: Capable of delivering up to 1.5A of output current, this regulator is suitable for applications requiring high power delivery.
• Low Dropout Voltage: With a dropout voltage of only 0.18V at 1.5A, the LP38852SX-ADJ maintains high efficiency even when the input voltage is close to the output voltage.
• Control Features: The regulator includes enable and soft start features, providing enhanced control over the power-up sequence and reducing inrush currents.
• Protection Features: Overcurrent, overtemperature, short-circuit, and under-voltage lockout (UVLO) protections ensure robustness and reliability in various operating conditions.
• Low Quiescent Current: A quiescent current of 300 µA minimizes power consumption during standby, making the regulator suitable for battery-powered applications.
• High PSRR: The regulator offers a high power supply rejection ratio (PSRR) of 80dB at 120Hz and 65dB at 1kHz, ensuring excellent noise rejection and stable output voltage.
• Surface-Mount Package: Available in a surface-mount package, the LP38852SX-ADJ is ideal for space-constrained designs.
• Moisture Sensitivity Level: MSL 3 (168 Hours) ensures the regulator can withstand moisture exposure during manufacturing processes.

LP38852SX-ADJ Applications

The LP38852SX-ADJ is well-suited for a variety of applications where precise voltage regulation and high efficiency are critical. Some specific use cases include:

• Consumer Electronics: Ideal for powering sensitive components in smartphones, tablets, and other portable devices.
• Communication Systems: Suitable for providing stable power to RF modules, base stations, and other communication equipment.
• Industrial Equipment: Can be used in control systems, sensors, and actuators where reliable power delivery is essential.
• Medical Devices: Appropriate for powering critical components in medical equipment, ensuring high reliability and low noise.
• Automotive Applications: Suitable for in-vehicle electronics, such as infotainment systems and advanced driver-assistance systems (ADAS).

Conclusion of LP38852SX-ADJ

The LP38852SX-ADJ from Texas Instruments is a versatile linear voltage regulator that offers adjustable output voltage, high output current, and low dropout voltage. Its advanced control and protection features, combined with a low quiescent current and high PSRR, make it an excellent choice for a wide range of applications. Despite its obsolete status, the LP38852SX-ADJ remains a reliable option for designers seeking a high-performance regulator in a compact surface-mount package.

LP38852SX-ADJ Documents

Download datasheets and manufacturer documentation for LP38852SX-ADJ