Texas Instruments

LP5900SD-2.5  

Linear & Switching Voltage Regulators

LP5900SD-2.5 Description

The LP5900SD-2.5 is a high-performance linear regulator designed by Texas Instruments, offering a fixed output voltage of 2.5V and a maximum output current of 150mA. This regulator is part of the Power Management Integrated Circuit (PMIC) category and is housed in a 6-lead WSON package, making it suitable for surface mount applications. The LP5900SD-2.5 is designed to operate with an input voltage range up to 5.5V and features a low dropout voltage of 0.15V at 150mA, ensuring efficient power delivery even under low input voltage conditions.

LP5900SD-2.5 Features

• Output Type: Fixed 2.5V output voltage, providing a stable power supply for sensitive electronic components.
• Input Voltage Range: Capable of handling input voltages up to 5.5V, making it versatile for various power supply scenarios.
• Output Current: Delivers a maximum output current of 150mA, suitable for low-power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.15V at 150mA, the LP5900SD-2.5 ensures high efficiency and minimal power loss.
• Low Quiescent Current: Features a quiescent current of only 50 µA, which is crucial for battery-powered devices to prolong battery life.
• Enable Control: The enable feature allows for dynamic control of the regulator, enabling power-saving modes and efficient power management.
• Protection Features: Over-temperature and short-circuit protection ensure the reliability and longevity of the device.
• Power Supply Rejection Ratio (PSRR): Offers a PSRR of 85dB at 100Hz to 40dB at 100kHz, providing excellent noise suppression and stable output voltage.
• Compliance: The LP5900SD-2.5 is REACH Affected and ROHS3 Compliant, ensuring it meets environmental and safety standards.
• Moisture Sensitivity Level: MSL 1 (Unlimited) indicates that the device is not moisture-sensitive, making it suitable for a wide range of manufacturing environments.

LP5900SD-2.5 Applications

The LP5900SD-2.5 is ideal for a variety of low-power applications where a stable and efficient power supply is required. Some specific use cases include:

• Battery-Powered Devices: The low quiescent current and low dropout voltage make it suitable for applications where battery life is critical, such as portable electronics and IoT devices.
• Sensitive Electronics: The fixed output voltage and high PSRR ensure stable power delivery to sensitive components, such as microcontrollers and sensors.
• Industrial Applications: The over-temperature and short-circuit protection features make it robust for industrial environments where reliability is paramount.
• Consumer Electronics: The compact 6-lead WSON package and surface mount compatibility make it suitable for space-constrained consumer electronics.

Conclusion of LP5900SD-2.5

The LP5900SD-2.5 from Texas Instruments is a highly efficient and reliable linear regulator designed for low-power applications. Its low dropout voltage, low quiescent current, and enable control feature make it an excellent choice for battery-powered devices and sensitive electronics. The inclusion of over-temperature and short-circuit protection ensures robustness and reliability, making it suitable for a wide range of applications. The LP5900SD-2.5 stands out in its category due to its high performance and compliance with environmental and safety standards, making it a preferred choice for engineers and designers in the electronics industry.

LP5900SD-2.5 Documents

Download datasheets and manufacturer documentation for LP5900SD-2.5

Datasheets :

LP5900 Datasheet      

Design Resources :

LP5900 Design with WEBENCH® Power Designer      

PCN Obsolescence/ EOL :

EOL 18/Sept/2023      

PCN Design/Specification :

Copper Wire Base Metal 15/Oct/2014