The LD3985M28R is a low-dropout (LDO) voltage regulator designed and manufactured by STMicroelectronics, a global leader in semiconductor solutions. This LDO regulator is specifically engineered to deliver a stable and precise 2.8V output voltage, which is essential for providing consistent power to sensitive electronic circuits.

Key Features

• Low-Dropout Voltage: The LD3985M28R boasts an ultra-low dropout voltage, ensuring efficient operation even when the input voltage is very close to the output voltage, making it ideal for battery-powered applications.
• High Accuracy: With tight output voltage tolerance, this regulator provides high accuracy, which is crucial for powering precision components.
• Low Quiescent Current: The device features a low quiescent current, contributing to extended battery life in portable applications.
• Thermal and Overcurrent Protection: Built-in thermal shutdown and current limiting protect the device and the application from damage due to overheating or excessive load conditions.
• Wide Operating Temperature Range: The LD3985M28R is designed to operate over a broad temperature range, ensuring reliability across various environmental conditions.

Applications

The LD3985M28R is versatile and can be used in a variety of applications, including but not limited to:

• Mobile phones and personal digital assistants (PDAs)
• Portable media players and audio devices
• Wireless communication systems
• Microcontroller power supply

Package and Quality

This LDO regulator is available in a small SOT-23-5 package, which is suitable for space-constrained applications. The product adheres to STMicroelectronics' commitment to quality and reliability, ensuring that the LD3985M28R meets the stringent requirements of the electronics industry.

Conclusion

With its combination of low-dropout performance, accuracy, and protection features, the LD3985M28R from STMicroelectronics is an excellent choice for designers looking to enhance the power stability and efficiency of their electronic devices. Its robustness and versatility make it an invaluable component in a wide range of applications.