The LD3985G33R is a high-performance, low-dropout voltage regulator designed and manufactured by STMicroelectronics, a global semiconductor leader known for its cutting-edge technology and innovative solutions. This voltage regulator offers a stable and precise output voltage, making it an ideal choice for sensitive electronic applications where a consistent voltage supply is critical.

Key Features

• Low Dropout Voltage: The LD3985G33R boasts a low dropout voltage, which ensures efficient operation even when the input voltage is very close to the output voltage. This feature is particularly useful for battery-operated devices where maximizing battery life is essential.
• High Accuracy: With an output voltage accuracy of ±1%, this regulator provides a stable power supply, which is crucial for maintaining the performance of precision electronic systems.
• Low Quiescent Current: The device has a low quiescent current, making it suitable for use in low-power applications and standby modes, thereby conserving energy and extending the lifespan of the product.
• Thermal Protection: The LD3985G33R is equipped with thermal shutdown protection that safeguards the device and the system from damage due to overheating.
• Wide Operating Temperature Range: This voltage regulator can operate over a broad temperature range, ensuring reliability and performance even under extreme conditions.

Applications

The LD3985G33R is versatile and can be used in a variety of applications, including but not limited to:

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

Technical Specifications

• Output Voltage: 3.3V
• Dropout Voltage (Typical): 120mV at 150mA load
• Output Current: Up to 150mA
• Package: SOT-23-5

In conclusion, the LD3985G33R from STMicroelectronics is a reliable and efficient solution for applications requiring a stable low-voltage power supply. Its low dropout voltage, high accuracy, and additional protective features make it a highly suitable choice for designers looking to enhance the performance and longevity of their electronic products.