Texas Instruments

LP2985IM5-4.5

LP2985IM5-4.5 Description

The LP2985IM5-4.5 is a fixed output linear regulator designed by Texas Instruments, offering a robust and efficient solution for power management applications. This device features a maximum input voltage of 16V and is capable of delivering a stable output voltage of 4.5V with a maximum output current of 150mA. The regulator is designed with a dropout voltage of 0.58V at 150mA, ensuring high efficiency even under low input-to-output voltage differentials. The LP2985IM5-4.5 is housed in a compact SOT23-5 package, making it suitable for space-constrained designs.

LP2985IM5-4.5 Features

• Output Type: Fixed output voltage of 4.5V.
• Input Voltage Range: Up to 16V, providing flexibility in power source selection.
• Output Current: Capable of delivering up to 150mA, suitable for a wide range of applications.
• Low Dropout Voltage: 0.58V at 150mA, enhancing efficiency and performance.
• Low Quiescent Current: 95 µA, minimizing power consumption in standby mode.
• High PSRR: 45dB at 1kHz, ensuring excellent noise rejection and stable output.
• Enable Control Feature: Allows for dynamic control of the regulator’s operation.
• Protection Features: Over current, over temperature, and short circuit protection, ensuring reliability and durability.
• Mounting Type: Surface mount, ideal for modern PCB designs.
• Moisture Sensitivity Level (MSL): 1 (Unlimited), suitable for various environmental conditions.
• Package: Tape & Reel (TR), facilitating automated assembly processes.

LP2985IM5-4.5 Applications

The LP2985IM5-4.5 is ideal for applications requiring a stable and efficient power supply with a fixed output voltage. Its low dropout voltage and low quiescent current make it particularly suitable for battery-powered devices and portable electronics where power efficiency is crucial. The enable control feature allows for dynamic power management, making it ideal for systems that require power sequencing or standby modes. The regulator’s compact SOT23-5 package and surface mount type make it a perfect fit for space-constrained designs, such as consumer electronics, IoT devices, and industrial control systems.

Conclusion of LP2985IM5-4.5

The LP2985IM5-4.5 from Texas Instruments is a versatile and efficient linear regulator designed to meet the demands of modern power management applications. Its fixed output voltage of 4.5V and maximum output current of 150mA, combined with low dropout voltage and low quiescent current, make it an excellent choice for battery-powered and portable devices. The inclusion of enable control and comprehensive protection features further enhances its reliability and flexibility. Despite being marked as obsolete, the LP2985IM5-4.5 remains a reliable option for applications where its specific attributes are required.