STMicroelectronics

LD39030DTPU28R

LD39030DTPU28R Description

The LD39030DTPU28R is a high-performance linear voltage regulator designed by STMicroelectronics. This regulator is specifically tailored for applications requiring a fixed output voltage of 2.8V and a maximum output current of 300mA. It features a low dropout voltage of 0.33V at 300mA, ensuring efficient operation even under low input voltage conditions. The regulator operates within an input voltage range up to 5.5V, making it suitable for a wide range of power supply scenarios.

The LD39030DTPU28R is housed in a compact 4DFN package, which is ideal for surface mount applications. It includes several advanced control and protection features, such as an enable pin for power control, over-current protection, over-temperature protection, and soft start functionality. These features enhance the reliability and robustness of the regulator, making it suitable for demanding industrial and consumer electronics applications.

LD39030DTPU28R Features

• Fixed Output Voltage: The regulator provides a stable output voltage of 2.8V, ensuring consistent power delivery to connected devices.
• High Efficiency: With a low dropout voltage of 0.33V at 300mA, the LD39030DTPU28R maintains high efficiency even when the input voltage is close to the output voltage.
• Low Quiescent Current: The regulator consumes only 40 µA of quiescent current, which is crucial for battery-powered applications where minimizing power consumption is essential.
• High PSRR: The regulator offers a high power supply rejection ratio (PSRR) ranging from 80dB at 1kHz to 55dB at 100kHz, effectively filtering out noise from the input power supply.
• Protection Features: Over-current and over-temperature protections ensure the regulator operates safely under various conditions, while the soft start feature prevents inrush currents during startup.
• Enable Control: The enable pin allows for precise control over the regulator's operation, enabling power-saving modes and controlled startup sequences.
• Compliance and Reliability: The LD39030DTPU28R is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and regulatory standards. It also has a moisture sensitivity level (MSL) of 1, making it suitable for a wide range of manufacturing environments.

LD39030DTPU28R Applications

The LD39030DTPU28R is ideal for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Consumer Electronics: Ideal for portable devices such as smartphones, tablets, and wearables where low power consumption and high efficiency are critical.
• Industrial Equipment: Suitable for industrial control systems, sensors, and IoT devices that require reliable power regulation.
• Medical Devices: Can be used in medical equipment where precise voltage regulation and low noise are essential for accurate measurements and safe operation.
• Automotive Applications: Applicable in automotive electronic systems where the regulator's robustness and protection features ensure reliable performance in harsh environments.

Conclusion of LD39030DTPU28R

The LD39030DTPU28R from STMicroelectronics stands out as a high-performance linear voltage regulator with a unique combination of efficiency, reliability, and advanced features. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for applications where power efficiency and noise reduction are paramount. The inclusion of enable control and comprehensive protection features further enhances its versatility and robustness. Whether used in consumer electronics, industrial systems, or medical devices, the LD39030DTPU28R offers a reliable and efficient power solution.