STMicroelectronics

LD3985M25R

LD3985M25R Description

The LD3985M25R is a highly efficient linear voltage regulator designed and manufactured by STMicroelectronics. This device features a fixed output voltage of 2.5V and is capable of delivering a maximum output current of 150mA. It is equipped with a single regulator and has a positive output configuration. The LD3985M25R operates with an input voltage range up to 6V and has a low quiescent current of 150 µA, making it ideal for battery-powered applications. The device is RoHS3 compliant and REACH unaffected, ensuring environmental sustainability.

LD3985M25R Features

• Fixed Output Voltage: The LD3985M25R provides a stable 2.5V output, ensuring consistent performance in various applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.1V at 150mA, the device maintains high efficiency even under heavy load conditions.
• Low Quiescent Current: The 150 µA quiescent current contributes to extended battery life in portable devices.
• PSRR: The LD3985M25R offers an excellent power supply rejection ratio of 60dB at 1kHz to 50dB at 10kHz, minimizing noise coupling from the input to the output.
• Protection Features: The device includes over current and over temperature protection, safeguarding the system from potential damage.
• Mounting Type: The LD3985M25R is available in a surface-mount package, making it suitable for space-constrained applications.

LD3985M25R Applications

The LD3985M25R is an ideal choice for a wide range of applications where stable and efficient voltage regulation is required. Some specific use cases include:

1. Portable Electronics: Due to its low quiescent current and small form factor, the LD3985M25R is perfect for powering portable devices such as smartphones, tablets, and wearables.
2. Industrial Equipment: The device's robust protection features and low dropout voltage make it suitable for use in industrial equipment where reliability and efficiency are crucial.
3. Automotive Applications: The LD3985M25R can be used in automotive systems, such as infotainment systems and sensor interfaces, where stable power supply is essential.

Conclusion of LD3985M25R

The LD3985M25R from STMicroelectronics is a versatile and efficient linear voltage regulator that offers a fixed output voltage of 2.5V with a maximum output current of 150mA. Its low dropout voltage, low quiescent current, and excellent PSRR make it an ideal choice for a variety of applications, including portable electronics, industrial equipment, and automotive systems. With its RoHS3 compliance and REACH unaffected status, the LD3985M25R is not only a high-performance solution but also an environmentally responsible choice.