STMicroelectronics LD2985AM28R - Low Drop Voltage Regulator

The LD2985AM28R from STMicroelectronics is a high-performance low drop voltage regulator designed to deliver a constant 2.8V output voltage with an input voltage range from 2.5V to 16V. This device is particularly well-suited for battery-powered applications due to its low dropout voltage and low quiescent current, which help to maximize battery life.

Key Features

• Output Voltage: The device provides a stable 2.8V output, making it ideal for powering sensitive electronic circuits that require a consistent voltage level.
• Low Dropout: With a very low dropout voltage, the LD2985AM28R ensures efficient operation even when the input voltage is close to the output voltage, which is essential for battery-operated devices.
• Low Quiescent Current: The low quiescent current of typically 1 µA in shutdown mode and 500 µA in active mode contributes to energy savings and extended battery life.
• High Accuracy: Output voltage tolerance is guaranteed at a ±1% maximum, providing reliable and precise voltage regulation for critical applications.
• Output Current: Capable of delivering up to 50 mA of output current, this regulator can power a wide range of low-power devices.
• Thermal Protection: The built-in thermal shutdown and short-circuit protection features safeguard the device and the application from damage due to overheating or overcurrent conditions.

Applications

The LD2985AM28R 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
• Portable instrumentation and medical devices
• Microcontroller power supply

Package Information

This voltage regulator is available in a small SOT-23-5 package, which is suitable for space-constrained applications. The compact footprint and low profile make it an excellent choice for portable devices where size and weight are critical considerations.

Overall, the LD2985AM28R from STMicroelectronics is a reliable and efficient solution for applications requiring a low dropout voltage regulator with a fixed output voltage of 2.8V.