Texas Instruments

LP5900SD-2.7

LP5900SD-2.7 Description

The LP5900SD-2.7 is a linear voltage regulator designed by Texas Instruments, offering a fixed output voltage of 2.7V with a maximum output current of 150mA. This regulator is part of the Linear & Switching Voltage Regulators category and is housed in a 6WSON package, suitable for surface mount applications. Despite its obsolete product status, the LP5900SD-2.7 remains a reliable choice for applications requiring a stable and efficient power supply.

LP5900SD-2.7 Features

• Output Type: Fixed, ensuring a consistent 2.7V output voltage.
• Input Voltage Range: Capable of handling a maximum input voltage of 5.5V, providing flexibility in power source options.
• Output Current: Delivers up to 150mA, suitable for a variety of low-power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.15V at 150mA, it maintains efficiency even at low input-to-output voltage differentials.
• Low Quiescent Current: Features a quiescent current of only 50 µA, minimizing power consumption in standby mode.
• Control Features: Includes an enable function, allowing for dynamic control of the regulator's operation.
• Protection Features: Equipped with over-temperature and short-circuit protection, ensuring robustness and reliability.
• Power Supply Rejection Ratio (PSRR): Offers a high PSRR ranging from 85dB at 100Hz to 40dB at 100kHz, effectively filtering out noise from the input power supply.
• Moisture Sensitivity Level: MSL 1 (Unlimited), making it suitable for a wide range of environmental conditions.
• Mounting Type: Surface mount, ideal for compact and space-efficient designs.
• Package: Tape & Reel (TR), facilitating automated assembly processes.

LP5900SD-2.7 Applications

The LP5900SD-2.7 is ideal for applications requiring a stable and efficient power supply with low power consumption. Its low dropout voltage and low quiescent current make it particularly suitable for battery-powered devices and portable electronics. Specific use cases include:

• Battery-Powered Devices: Provides a stable power supply for devices such as handheld electronics, where minimizing power consumption is crucial.
• Low-Power Systems: Ideal for microcontroller-based systems, sensors, and other low-power applications that require a reliable and efficient power source.
• Portable Electronics: Suitable for applications such as portable audio devices, wearable technology, and IoT devices where compact size and low power consumption are essential.
• Industrial Applications: Can be used in industrial control systems and instrumentation where a stable and efficient power supply is required.

Conclusion of LP5900SD-2.7

The LP5900SD-2.7 from Texas Instruments is a versatile and reliable linear voltage regulator, offering a fixed 2.7V output with a maximum current of 150mA. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for low-power applications, particularly in battery-powered devices and portable electronics. Despite its obsolete status, the LP5900SD-2.7 remains a robust solution for applications requiring a stable and efficient power supply.