STMicroelectronics

LD39015M125R

LD39015M125R Description

The LD39015M125R is a high-performance linear voltage regulator from STMicroelectronics, designed to deliver a fixed output voltage of 1.25V with a maximum output current of 150mA. This device is housed in a compact SOT23-5 package, making it suitable for space-constrained applications. With a low quiescent current of 50 µA and a supply current of 70 µA, the LD39015M125R is ideal for battery-powered devices and systems that require low power consumption.

LD39015M125R Features

• Fixed Output Voltage: The LD39015M125R provides a stable 1.25V output, ensuring consistent performance across a wide range of input voltages up to 5.5V.
• Low Dropout Voltage: With a maximum dropout voltage of 0.1V at 100mA, this regulator maintains high efficiency even under heavy load conditions.
• Single Regulator: The LD39015M125R features a single output, simplifying design and reducing component count.
• Positive Output Configuration: Ideal for applications requiring a positive voltage reference or output.
• Enable Control: The device includes an enable control feature, allowing for easy power management and system shutdown.
• Over Current and Over Temperature Protection: The LD39015M125R incorporates built-in protection features to safeguard against potential damage due to overcurrent and overheating.
• PSRR: The LD39015M125R offers an excellent power supply rejection ratio (PSRR) of 65dB at 1kHz and 62dB at 10kHz, ensuring minimal noise coupling from the input to the output.

LD39015M125R Applications

The LD39015M125R is well-suited for a variety of applications where a stable, low-voltage output is required. Some ideal use cases include:

• Portable Electronics: Due to its low power consumption and small form factor, the LD39015M125R is perfect for battery-powered devices such as smartphones, tablets, and wearables.
• Sensors and IoT Devices: The device's low dropout voltage and positive output make it an excellent choice for powering sensors and IoT devices that require a stable voltage reference.
• Industrial Control Systems: The LD39015M125R's ability to handle a wide input voltage range and provide a stable output voltage makes it suitable for industrial control systems and automation equipment.

Conclusion of LD39015M125R

The LD39015M125R from STMicroelectronics is a versatile and efficient linear voltage regulator, offering a fixed 1.25V output with low power consumption and robust protection features. Its compact SOT23-5 package and positive output configuration 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 use, the LD39015M125R stands out as a top choice for designers looking to optimize their power supply solutions.