Texas Instruments

LMS1587CS-3.3

LMS1587CS-3.3 Description

The LMS1587CS-3.3 is a linear regulator IC designed by Texas Instruments, offering a fixed output voltage of 3.3V and a maximum output current of 3A. This device is part of the Power Management Integrated Circuit (PMIC) category and is housed in a Surface Mount DDPAK/TO263-3 package. The LMS1587CS-3.3 is designed for applications requiring a stable and efficient power supply, with a maximum input voltage of 13V and a dropout voltage of 1.3V at 3A. It features a quiescent current of 7 mA and a power supply rejection ratio (PSRR) of 72dB at 120Hz, ensuring minimal noise and high performance.

LMS1587CS-3.3 Features

• Fixed Output Voltage: The LMS1587CS-3.3 provides a stable 3.3V output, making it suitable for applications requiring a consistent power supply.
• High Output Current: With a maximum output current of 3A, this regulator can support high-power devices and systems.
• Low Dropout Voltage: A dropout voltage of 1.3V at 3A ensures efficient operation even at lower input voltages, enhancing overall system efficiency.
• Over Current and Over Temperature Protection: These protection features safeguard the device and connected components from damage due to excessive current or temperature.
• High PSRR: A PSRR of 72dB at 120Hz minimizes the impact of input voltage variations on the output, ensuring a clean and stable power supply.
• Low Quiescent Current: The 7 mA quiescent current ensures minimal power consumption during operation, making it ideal for battery-powered and energy-efficient applications.
• Wide Operating Temperature Range: The LMS1587CS-3.3 operates reliably over a temperature range of 0°C to 125°C, making it suitable for various environmental conditions.
• Moisture Sensitivity Level 3: Certified for 168 hours, this ensures the device remains robust in high humidity environments.

LMS1587CS-3.3 Applications

The LMS1587CS-3.3 is ideal for a variety of applications where a stable and efficient power supply is crucial. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and portable gaming consoles, where a stable 3.3V supply is required.
• Industrial Equipment: Suitable for powering sensors, controllers, and other industrial components that demand a reliable power source.
• Telecommunications: Can be used in base stations and other telecom equipment to provide a stable power supply for critical components.
• Automotive Systems: Applicable in automotive electronics where a robust and efficient power supply is needed to support various electronic systems.

Conclusion of LMS1587CS-3.3

The LMS1587CS-3.3 from Texas Instruments is a robust and efficient linear regulator designed to meet the demands of high-power applications. Its fixed 3.3V output, combined with a maximum output current of 3A and low dropout voltage, makes it an excellent choice for applications requiring a stable and efficient power supply. The device's over current and over temperature protection features, along with its high PSRR and low quiescent current, ensure reliable operation and minimal power consumption. While the LMS1587CS-3.3 is not recommended for new designs, it remains a valuable option for existing systems and applications where its unique features and performance benefits are required.