Texas Instruments

LP5900SD-2.2

LP5900SD-2.2 Description

The LP5900SD-2.2 is a fixed-output linear regulator designed by Texas Instruments, featuring a 2.2V output voltage and a maximum output current of 150mA. This regulator is part of the Power Management Integrated Circuit (PMIC) category, designed for surface-mount applications. It is housed in a 6-lead WSON package, which is ideal for compact and efficient power management solutions. The LP5900SD-2.2 offers a low dropout voltage of 0.15V at 150mA, ensuring high efficiency even under low input voltage conditions.

LP5900SD-2.2 Features

• Output Type: Fixed output voltage of 2.2V.
• Input Voltage Range: Up to 5.5V, making it suitable for a wide range of input sources.
• Output Current: Capable of delivering up to 150mA, ideal for low-power applications.
• Low Dropout Voltage: 0.15V at 150mA, ensuring efficient operation even with minimal headroom.
• Low Quiescent Current: 50 µA, contributing to high efficiency in standby modes.
• Supply Current: Maximum of 230 µA, minimizing power consumption.
• Control Features: Includes an enable function for precise control over the regulator's operation.
• Protection Features: Over-temperature and short-circuit protection ensure robustness and reliability.
• Performance: High PSRR (Power Supply Rejection Ratio) ranging from 85dB at 100Hz to 40dB at 100kHz, providing excellent noise rejection.
• Compliance: REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for various environmental conditions.

LP5900SD-2.2 Applications

The LP5900SD-2.2 is well-suited for a variety of applications where low power consumption and high efficiency are critical. Its low dropout voltage and low quiescent current make it ideal for battery-powered devices, portable electronics, and other low-power systems. The enable function allows for dynamic control, making it suitable for applications requiring power sequencing or sleep mode operation. The regulator's robust protection features ensure reliable performance in harsh environments, making it a reliable choice for industrial and automotive applications.

Conclusion of LP5900SD-2.2

The LP5900SD-2.2 from Texas Instruments is a versatile linear regulator that offers a balance of high efficiency, low power consumption, and robust performance. Its low dropout voltage and low quiescent current make it an excellent choice for low-power applications, while its enable function and protection features provide additional control and reliability. Although the product is now obsolete, its unique features and performance benefits make it a valuable component for existing designs and legacy systems. For new designs, engineers may consider its successor models or similar alternatives that offer comparable performance and enhanced features.