The LD2985AM35R is a high-quality, low drop voltage regulator designed and manufactured by STMicroelectronics, a leader in semiconductor solutions. This particular model offers an impressive dropout voltage of just 0.2 V at a 150 mA load, making it an excellent choice for battery-powered applications where maintaining a stable voltage is critical for performance and efficiency.

Key Features

• Output Voltage: The LD2985AM35R provides a fixed output voltage of 3.5V, which is suitable for a wide range of low-voltage electronics, including microcontrollers and analog devices.
• Low Dropout Voltage: With a dropout voltage as low as 0.2V at 150mA of load current, this voltage regulator ensures efficient operation even when the input voltage is close to the output voltage.
• High Accuracy: The output voltage is guaranteed to be within ±1% tolerance, providing reliable and consistent power supply to sensitive electronic components.
• Low Quiescent Current: The device features a very low quiescent current of typically 0.2 µA in off mode (not supplying) and 500 µA in on mode, which is excellent for battery-powered applications where power conservation is paramount.
• Thermal Overload Protection: To ensure reliability and longevity, the LD2985AM35R includes thermal overload protection that shuts down the output if the temperature exceeds safe operating limits.
• Short Circuit Protection: Built-in short circuit protection prevents damage to the regulator and the connected device in case of a fault condition.
• Packaging: The regulator is available in multiple package options, including the compact SOT-23-5 package, which is ideal for space-constrained applications.

Applications

The LD2985AM35R is versatile and can be used in various applications such as:

• Battery-powered devices
• Portable media players
• Mobile phones
• Personal digital assistants (PDAs)
• Low-power microcontrollers and digital logic systems

With its combination of low dropout performance, high accuracy, and power-saving features, the LD2985AM35R from STMicroelectronics is an excellent choice for designers looking to optimize their power management solutions in portable and low-power electronic devices.