The Texas Instruments LP3985ITL-3.3 is a high-performance, low-dropout (LDO) voltage regulator optimized for power-sensitive applications. This micro-power device is designed to deliver a fixed output voltage of 3.3V with an input voltage range from 2.5V to 6.0V, making it an excellent choice for battery-powered devices where extended battery life is crucial.

Key Features

• Stable Output: The LP3985ITL-3.3 provides a stable and precise 3.3V output with an accuracy of ±0.5% at 25°C, ensuring reliable operation for sensitive electronic circuits.
• Low Dropout: With a very low dropout voltage of typically 280mV at full load (150mA), it is highly efficient for systems where voltage margins are critical.
• High Output Current: This regulator can deliver an output current of up to 150mA, suitable for a wide range of applications.
• Low Quiescent Current: The device boasts a low quiescent current of 50µA in the active mode and 0.01µA in shutdown mode, contributing to the conservation of battery life in portable devices.
• Thermal Protection: It includes thermal shutdown protection that prevents damage from overheating.
• Short Circuit Protection: The built-in current limit feature protects the device and the load from short-circuit conditions.

Applications

The LP3985ITL-3.3 is ideal for a vast array of applications, particularly where power efficiency and space are of concern. It is commonly used in:

• Mobile Phones
• PDAs and Handheld Devices
• Portable Media Players
• Wireless LAN Devices
• GPS Receivers

Package and Quality

The LP3985ITL-3.3 voltage regulator is available in a compact, 5-pin SOT-23 package, which is suitable for automated assembly processes and space-constrained applications. Texas Instruments is known for its commitment to quality, and this product is no exception, meeting high standards of performance and reliability.

Summary

In summary, the LP3985ITL-3.3 from Texas Instruments is a robust LDO voltage regulator that offers a fixed 3.3V output with high accuracy, low dropout, and excellent power efficiency. Its small footprint and low power consumption make it an ideal solution for portable and battery-operated electronics.