Texas Instruments

LP3985IBL-3.3/NOPB  

Linear & Switching Voltage Regulators

LP3985IBL-3.3/NOPB Description

The LP3985IBL-3.3/NOPB is a linear regulator IC designed by Texas Instruments, offering a fixed 3.3V output voltage with a maximum output current of 150mA. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a 5DSBGA package, suitable for surface mount applications. Despite its small form factor, the LP3985IBL-3.3/NOPB delivers robust performance with a maximum input voltage of 6V and a dropout voltage of only 0.1V at 150mA. It features an enable control function, providing flexibility in power management. The regulator also includes over-current, over-temperature, and short-circuit protection, ensuring reliable operation under various conditions. With a maximum supply current of 250 µA and a quiescent current of 150 µA, the LP3985IBL-3.3/NOPB is optimized for low power consumption. It offers a Power Supply Rejection Ratio (PSRR) of 50dB to 40dB across the 1kHz to 10kHz frequency range, making it suitable for noise-sensitive applications. The device is REACH unaffected, RoHS3 compliant, and classified under ECCN EAR99 and HTSUS 8542.39.0001. Although the product is now obsolete, it remains a reliable choice for specific applications where its unique features are required.

LP3985IBL-3.3/NOPB Features

• Fixed Output Voltage: Provides a stable 3.3V output, ideal for applications requiring a precise voltage supply.
• High Efficiency: Achieves a low dropout voltage of 0.1V at 150mA, ensuring high efficiency even at low input voltages.
• Low Power Consumption: Features a maximum supply current of 250 µA and a quiescent current of 150 µA, making it suitable for battery-powered devices.
• Enhanced Protection: Includes over-current, over-temperature, and short-circuit protection to safeguard the device and connected components.
• Enable Control: Offers an enable function, allowing for dynamic power management and reduced power consumption during standby.
• Noise Reduction: Achieves a PSRR of 50dB to 40dB across the 1kHz to 10kHz range, minimizing noise and improving signal integrity.
• Compliance: Meets REACH and RoHS3 standards, ensuring environmental and safety compliance.
• Packaging: Available in a Tape & Reel (TR) package, facilitating easy handling and integration into automated assembly processes.

LP3985IBL-3.3/NOPB Applications

The LP3985IBL-3.3/NOPB is well-suited for a variety of applications where a stable 3.3V supply and low power consumption are critical. Some specific use cases include:

• Portable Electronics: Ideal for battery-powered devices such as smartphones, tablets, and wearables, where low power consumption and high efficiency are essential.
• Embedded Systems: Suitable for microcontroller-based systems and IoT devices that require a reliable power supply with minimal power draw.
• Communication Devices: Applicable in routers, modems, and other communication equipment where noise reduction and stable voltage output are crucial.
• Medical Devices: Can be used in portable medical devices such as glucose meters and portable monitors, where precision and reliability are paramount.
• Industrial Control Systems: Appropriate for sensors, actuators, and other industrial components that need a stable power supply with protection features.

Conclusion of LP3985IBL-3.3/NOPB

The LP3985IBL-3.3/NOPB is a versatile linear regulator IC that offers a combination of high efficiency, low power consumption, and robust protection features. Its fixed 3.3V output and low dropout voltage make it an excellent choice for applications requiring a stable power supply. The enable control function and comprehensive protection mechanisms further enhance its flexibility and reliability. Despite being obsolete, the LP3985IBL-3.3/NOPB remains a reliable option for specific applications where its unique features are necessary. Its compliance with REACH and RoHS3 standards ensures that it meets environmental and safety requirements, making it a responsible choice for modern electronics design.

LP3985IBL-3.3/NOPB Documents

Download datasheets and manufacturer documentation for LP3985IBL-3.3/NOPB