Texas Instruments

LP38691SDX-1.8

LP38691SDX-1.8 Description

The LP38691SDX-1.8 is a fixed output linear voltage regulator designed and manufactured by Texas Instruments. This regulator is part of the LP38691 family, known for its high performance and reliability in various electronic applications. The LP38691SDX-1.8 is specifically designed to provide a stable 1.8V output voltage with a maximum output current of 500mA. It features a maximum input voltage of 10V, making it suitable for a wide range of power supply applications.

The regulator is housed in a 6-lead WSON package, which is ideal for surface mount applications, ensuring a compact and efficient design. The LP38691SDX-1.8 is rated for automotive grade use, indicating its robustness and suitability for demanding environments. It also features a maximum supply current of 100 µA and a quiescent current of 55 µA, contributing to its high efficiency and low power consumption.

LP38691SDX-1.8 Features

• Fixed Output Voltage: The LP38691SDX-1.8 provides a stable 1.8V output, ensuring consistent performance in applications requiring a fixed voltage.
• High Input Voltage Range: With a maximum input voltage of 10V, this regulator can handle a wide range of input voltages, making it versatile for various power supply designs.
• High Output Current: Capable of delivering up to 500mA, the LP38691SDX1-.8 is suitable for applications requiring moderate to high current loads.
• Low Quiescent Current: The 55 µA quiescent current ensures minimal power consumption, making it ideal for battery-powered and energy-efficient systems.
• Over Temperature Protection: This feature enhances the reliability and safety of the regulator by protecting it from over-temperature conditions.
• Automotive Grade: The LP38691SDX-1.8 is designed to meet the stringent requirements of automotive applications, ensuring robust performance in harsh environments.
• Surface Mount Packaging: The 6-lead WSON package is ideal for surface mount technology, providing a compact and efficient solution for space-constrained designs.

LP38691SDX-1.8 Applications

The LP38691SDX-1.8 is well-suited for a variety of applications, particularly those requiring a stable 1.8V supply. Some specific use cases include:

• Automotive Electronics: Ideal for automotive applications where reliability and performance are critical, such as in-vehicle infotainment systems, electronic control units, and advanced driver-assistance systems (ADAS).
• Battery-Powered Devices: Suitable for portable electronic devices where low power consumption and high efficiency are essential, such as smartphones, tablets, and wearable devices.
• Industrial Control Systems: Applicable in industrial automation and control systems where a stable power supply is required for sensors, actuators, and microcontrollers.
• Consumer Electronics: Can be used in a wide range of consumer electronics, including home appliances, gaming consoles, and audio/video equipment.

Conclusion of LP38691SDX-1.8

The LP38691SDX-1.8 is a high-performance linear voltage regulator that offers a stable 1.8V output with a maximum current of 500mA. Its low quiescent current, high input voltage range, and over-temperature protection make it an ideal choice for applications requiring efficiency, reliability, and robustness. The automotive grade rating and surface mount packaging further enhance its suitability for demanding environments and space-constrained designs. Despite being marked as obsolete, the LP38691SDX-1.8 remains a reliable option for engineers and designers looking for a proven solution in their power supply designs.