Texas Instruments

LP3985IBL-2.5  

Linear & Switching Voltage Regulators

LP3985IBL-2.5 Description

The LP3985IBL-2.5 is a fixed-output linear regulator designed by Texas Instruments, offering a robust solution for power management applications. This regulator is part of the Power Management Integrated Circuit (PMIC) category and is housed in a 5DSBGA package, making it suitable for surface mount applications. It features a fixed output voltage of 2.5V, capable of delivering up to 150mA of current. The LP3985IBL-2.5 is designed to operate efficiently with a maximum input voltage of 6V and boasts a low dropout voltage of 0.1V at 150mA, ensuring high performance even under varying input conditions.

LP3985IBL-2.5 Features

The LP3985IBL-2.5 stands out with several unique features that enhance its performance and reliability:

• Fixed Output Voltage: The regulator maintains a stable output voltage of 2.5V, ensuring consistent power delivery to connected devices.
• Low Dropout Voltage: With a maximum dropout voltage of 0.1V at 150mA, the LP3985IBL-2.5 operates efficiently even when the input voltage is close to the output voltage, reducing power loss and improving overall efficiency.
• Low Quiescent Current: The regulator consumes only 150 µA of quiescent current, making it ideal for low-power applications and extending battery life in portable devices.
• High PSRR: The Power Supply Rejection Ratio (PSRR) ranges from 50dB to 40dB across frequencies from 1kHz to 10kHz, providing excellent noise rejection and ensuring a clean power supply to sensitive circuits.
• Protection Features: The LP3985IBL-2.5 includes over-current, over-temperature, and short-circuit protection, safeguarding both the regulator and connected devices from potential damage.
• Enable Control: The regulator features an enable control pin, allowing users to turn the regulator on or off as needed, providing additional flexibility in power management.
• Compliance and Reliability: The LP3985IBL-2.5 is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. It also has a moisture sensitivity level (MSL) of 1, making it suitable for a wide range of manufacturing environments.

LP3985IBL-2.5 Applications

The LP3985IBL-2.5 is ideal for a variety of applications where stable and efficient power delivery is crucial:

• Portable Devices: Its low quiescent current and low dropout voltage make it perfect for battery-powered devices, such as smartphones, tablets, and wearables, where power efficiency and long battery life are essential.
• Consumer Electronics: The regulator can be used in various consumer electronics, including digital cameras, media players, and gaming consoles, to provide reliable power to sensitive circuits.
• Industrial Equipment: The LP3985IBL-2.5 can power sensors, microcontrollers, and other low-power components in industrial control systems, ensuring stable operation in demanding environments.
• Medical Devices: Its high PSRR and protection features make it suitable for medical equipment, where noise-free power supply and reliability are critical.

Conclusion of LP3985IBL-2.5

The LP3985IBL-2.5 from Texas Instruments is a versatile and efficient linear regulator designed for a wide range of power management applications. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for applications requiring stable and efficient power delivery. The inclusion of over-current, over-temperature, and short-circuit protection ensures robustness and reliability, making it a reliable component for both consumer and industrial applications. Despite being marked as obsolete, the LP3985IBL-2.5 remains a valuable option for designers seeking a high-performance linear regulator with a fixed 2.5V output.

LP3985IBL-2.5 Documents

Download datasheets and manufacturer documentation for LP3985IBL-2.5