The LD3985M33R is a high-performance low drop voltage regulator designed by STMicroelectronics, a leader in semiconductor solutions. This voltage regulator is specifically tailored to offer a stable and reliable power supply, making it an ideal choice for sensitive electronic applications requiring a fixed 3.3V output voltage.

Key Features

• Low Dropout Voltage: The LD3985M33R boasts an ultra-low dropout voltage, ensuring efficient operation even when the input voltage is very close to the output voltage. This feature is particularly beneficial for battery-powered devices, where maximizing the use of available power is crucial.
• High Accuracy: With an output voltage tolerance of ±1% at 25°C, this regulator provides precise voltage regulation, which is essential for maintaining the integrity of sensitive circuits.
• Low Quiescent Current: The device features a very low quiescent current, which is ideal for applications with stringent power conservation requirements such as portable and battery-operated devices.
• Thermal Shutdown and Current Limiting: Integrated safety features include thermal shutdown and current limiting, which protect the device and the load from damage due to overheating and overcurrent conditions.
• Wide Operating Temperature Range: The LD3985M33R can operate over a broad temperature range, making it suitable for industrial as well as consumer applications.

Applications

The LD3985M33R is versatile and can be used in a variety of applications, including but not limited to:

• Mobile phones and PDAs
• Portable media players
• Microcontrollers and digital logic supplies
• Peripheral cards

Package and Availability

This voltage regulator is available in a small SOT-23 package, which is ideal for space-constrained applications. Its small footprint and low profile make it suitable for compact PCB layouts. The LD3985M33R is part of STMicroelectronics' extensive portfolio of voltage regulators, and it is available for order through their distribution network or directly from their website.