STMicroelectronics

LDLN025M45R

LDLN025M45R Description

The LDLN025M45R is a high-performance linear voltage regulator from STMicroelectronics, designed to deliver a fixed output voltage of 4.5V with a maximum output current of 250mA. This device is part of the Linear & Switching Voltage Regulators category and is offered in a compact SOT23-5 package, making it ideal for space-constrained applications.

LDLN025M45R Features

• Output Type: Fixed, ensuring a stable and consistent output voltage.
• Voltage - Input (Max): 5.5V, providing a wide input voltage range for compatibility with various power sources.
• Current - Output: 250mA, suitable for low to medium power applications.
• Number of Regulators: 1, simplifying the design and reducing component count.
• Output Configuration: Positive, allowing for straightforward integration into positive voltage systems.
• Voltage Dropout (Max): 0.2V @ 250mA, ensuring efficient operation even under high current loads.
• PSRR: 80dB ~ 60dB (100Hz ~ 100KHz), providing excellent power supply rejection ratio for stable operation.
• Control Features: Enable, allowing for easy control and integration into various systems.
• Protection Features: Over Current, Over Temperature, Short Circuit, and Soft Start, ensuring reliable operation and protection against faults.

LDLN025M45R Applications

The LDLN025M45R is ideal for a wide range of applications where a stable and reliable voltage source is required. Some specific use cases include:

• Portable Electronics: Due to its low quiescent current and small form factor, it is perfect for battery-powered devices like smartphones, tablets, and wearables.
• Industrial Control Systems: The robust protection features make it suitable for industrial applications where reliability and stability are crucial.
• Medical Devices: The fixed output voltage and low dropout voltage make it an excellent choice for medical equipment that requires a stable power supply.
• Automotive Electronics: The device's ability to handle a wide input voltage range and provide a stable output voltage makes it suitable for automotive applications.

Conclusion of LDLN025M45R

The LDLN025M45R from STMicroelectronics is a versatile and reliable linear voltage regulator, offering a fixed output voltage of 4.5V with a maximum output current of 250mA. Its compact SOT23-5 package, combined with its robust protection features and excellent PSRR, make it an ideal choice for a wide range of applications, from portable electronics to industrial control systems. With its unique combination of performance, reliability, and ease of integration, the LDLN025M45R stands out as a superior solution in the Linear & Switching Voltage Regulators category.