Texas Instruments

LP38690SDX-1.8

LP38690SDX-1.8 Description

The LP38690SDX-1.8 is a high-performance linear regulator designed by Texas Instruments, featuring a fixed output voltage of 1.8V and a maximum output current of 1A. This regulator is optimized for low dropout voltage, ensuring efficient power conversion even at high input voltages up to 10V. The LP38690SDX-1.8 is housed in a 6-lead WSON package, which is ideal for surface-mount applications, providing a compact and thermally efficient solution.

LP38690SDX-1.8 Features

• Output Type: Fixed at 1.8V, ensuring stable and reliable power supply.
• Input Voltage Range: Capable of handling input voltages up to 10V, making it suitable for a wide range of applications.
• Output Current: Delivers a maximum output current of 1A, supporting high-current requirements.
• Low Dropout Voltage: With a maximum dropout voltage of 1.6V at 1A, the LP38690SDX-1.8 maintains high efficiency even under heavy load conditions.
• Low Quiescent Current: Features a quiescent current of only 55 µA, minimizing power consumption during operation.
• Supply Current: Maximum supply current of 100 µA, contributing to overall system efficiency.
• Power Supply Rejection Ratio (PSRR): Achieves 55dB at 120Hz, ensuring excellent noise suppression and output stability.
• Protection Features: Includes over-temperature protection to safeguard the device and connected components from thermal damage.
• Moisture Sensitivity Level (MSL): Rated at MSL 1 (Unlimited), ensuring robustness in various environmental conditions.
• Mounting Type: Surface mount, suitable for modern, compact PCB designs.
• Package: Supplied in a Tape & Reel (TR) format, facilitating automated assembly processes.

LP38690SDX-1.8 Applications

The LP38690SDX-1.8 is well-suited for a variety of applications where a stable and efficient power supply is critical. Its low dropout voltage and high output current make it ideal for:

• Consumer Electronics: Powering devices that require a stable 1.8V supply, such as smartphones, tablets, and portable gaming devices.
• Industrial Equipment: Providing a reliable power source for sensors, actuators, and control systems in industrial settings.
• Telecommunications: Ensuring stable power delivery for base stations, routers, and other networking equipment.
• Automotive Systems: Suitable for in-vehicle electronics, including infotainment systems and electronic control units.

Conclusion of LP38690SDX-1.8

The LP38690SDX-1.8 from Texas Instruments is a versatile and efficient linear regulator designed to meet the demands of modern electronic systems. Its fixed 1.8V output, low dropout voltage, and low quiescent current make it an excellent choice for applications requiring high efficiency and reliability. Despite being marked as obsolete, the LP38690SDX-1.8 remains a robust solution for power management, offering significant performance benefits over similar models. Its compact 6-lead WSON package and surface-mount design ensure ease of integration into space-constrained designs. For engineers and designers seeking a reliable and efficient power solution, the LP38690SDX-1.8 is a compelling option.