STMicroelectronics

LD2985BM33R

LD2985BM33R Description

The LD2985BM33R is a high-performance linear voltage regulator designed and manufactured by STMicroelectronics. This single-output, fixed 3.3V regulator is housed in a compact SOT23-5 package, making it ideal for space-constrained applications. With a maximum input voltage of 16V and an output current of 150mA, the LD2985BM33R provides reliable voltage regulation in a wide range of electronic devices.

LD2985BM33R Features

• Fixed 3.3V Output Voltage: The LD2985BM33R offers a fixed output voltage of 3.3V, simplifying design and reducing the need for external components.
• Low Dropout Voltage: With a maximum dropout voltage of 0.575V at 150mA, the LD2985BM33R maintains stable output voltage even under heavy load conditions.
• High PSRR: The LD2985BM33R boasts a 45dB power supply rejection ratio at 1kHz, ensuring minimal noise coupling from the input to the output.
• Low Quiescent Current: The device consumes only 150µA in quiescent mode, making it suitable for battery-powered applications.
• Over Current and Over Temperature Protection: The LD2985BM33R includes built-in protection features to safeguard against over current and over temperature conditions.
• RoHS3 Compliance: The device is compliant with RoHS3 regulations, making it suitable for environmentally friendly applications.

LD2985BM33R Applications

The LD2985BM33R is ideal for a variety of applications where a stable 3.3V output is required. Some specific use cases include:

• Portable Electronics: Due to its low quiescent current, the LD2985BM33R is well-suited for battery-powered devices such as smartphones, tablets, and wearables.
• Industrial Control Systems: The LD2985BM33R's ability to handle a wide input voltage range makes it suitable for industrial control systems where input voltages can vary.
• Automotive Applications: The device's robust protection features and low dropout voltage make it an excellent choice for automotive electronics, where reliability and stability are critical.

Conclusion of LD2985BM33R

The LD2985BM33R from STMicroelectronics is a versatile and reliable linear voltage regulator. Its fixed 3.3V output, low dropout voltage, and high PSRR make it an excellent choice for a wide range of applications, from portable electronics to industrial control systems. With its RoHS3 compliance and built-in protection features, the LD2985BM33R offers a robust solution for designers looking to ensure the reliability and performance of their electronic devices.