Texas Instruments

LP2985IM5-2.9/NOPB  

Linear & Switching Voltage Regulators

LP2985IM5-2.9/NOPB Description

The LP2985IM5-2.9/NOPB is a fixed output linear regulator designed to provide a stable 2.9V output voltage with a maximum output current of 150mA. Manufactured by Texas Instruments, this regulator is part of the Power Management Integrated Circuits (PMIC) category and is housed in a compact SOT23-5 package, making it suitable for surface mount applications. Despite being marked as obsolete, the LP2985IM5-2.9/NOPB remains a reliable choice for applications requiring a low dropout voltage and high power supply rejection ratio (PSRR).

LP2985IM5-2.9/NOPB Features

• Output Type: Fixed
• Voltage - Input (Max): 16V
• Current - Output: 150mA
• Number of Regulators: 1
• Output Configuration: Positive
• Current - Supply (Max): 2.5 mA
• Voltage - Output (Min/Fixed): 2.9V
• Voltage Dropout (Max): 0.58V @ 150mA
• Current - Quiescent (Iq): 95 µA
• PSRR: 45dB (1kHz)
• Control Features: Enable
• Protection Features: Over Current, Over Temperature, Short Circuit
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Package: Tape & Reel (TR)
• Mounting Type: Surface Mount
• REACH Status: REACH Unaffected
• RoHS Status: ROHS3 Compliant
• ECCN: EAR99
• HTSUS: 8542.39.0001

The LP2985IM5-2.9/NOPB stands out due to its low dropout voltage of 0.58V at 150mA, which allows it to maintain regulation even when the input voltage is close to the output voltage. This feature is particularly beneficial in battery-powered applications where the input voltage may drop significantly over time. Additionally, the regulator offers a high PSRR of 45dB at 1kHz, ensuring minimal noise and ripple on the output voltage, which is crucial for sensitive analog circuits.

LP2985IM5-2.9/NOPB Applications

The LP2985IM5-2.9/NOPB is ideal for a variety of applications that require a stable and low-noise power supply. Some specific use cases include:

• Battery-Powered Devices: The low dropout voltage ensures efficient operation as the battery discharges.
• Analog Circuits: The high PSRR helps in maintaining clean power supply for sensitive analog components, reducing noise and improving overall performance.
• Portable Electronics: The compact SOT23-5 package and surface mount type make it suitable for space-constrained designs.
• Industrial Equipment: The over current, over temperature, and short circuit protection features provide robustness against harsh operating conditions.

Conclusion of LP2985IM5-2.9/NOPB

Despite its obsolete status, the LP2985IM5-2.9/NOPB remains a valuable component for applications requiring a reliable, low dropout linear regulator with a fixed 2.9V output. Its combination of low dropout voltage, high PSRR, and comprehensive protection features make it a robust choice for a wide range of electronic designs. For engineers and designers looking for a compact, efficient, and stable power solution, the LP2985IM5-2.9/NOPB offers a proven and effective option.

LP2985IM5-2.9/NOPB Documents

Download datasheets and manufacturer documentation for LP2985IM5-2.9/NOPB

PCN Assembly/Origin :

Additional Assembly sites 21/Sep/2021      

Datasheets :

LP2985-N Datasheet      

PCN Packaging :

Pin One Dot 07/Jan/2019      

PCN Obsolescence/ EOL :

Mult Dev obs 13/Oct/2022      

PCN Design/Specification :

LP2985-N 04/Apr/2017       Copper Wire Update 12/Aug/2015