STMicroelectronics

LD39030ADTPU28R

LD39030ADTPU28R Description

The LD39030ADTPU28R is a high-performance linear voltage regulator designed by STMicroelectronics, featuring a fixed output voltage of 2.8V and capable of delivering a maximum output current of 300mA. This regulator is optimized for low dropout operation, with a maximum dropout voltage of 0.33V at full load, making it highly efficient in applications where input voltage is close to the required output voltage. The device is housed in a compact 4DFN package, suitable for surface mount applications, and is available in tape and reel packaging for automated assembly processes.

LD39030ADTPU28R Features

• Output Type: Fixed at 2.8V, ensuring stable and reliable power supply.
• Input Voltage Range: Up to 5.5V, providing flexibility in power source selection.
• Output Current: Capable of delivering up to 300mA, suitable for a wide range of low-power applications.
• Low Dropout Voltage: Maximum 0.33V dropout at 300mA, enhancing efficiency in low-headroom applications.
• Quiescent Current: Low quiescent current of 40 µA, minimizing power consumption in standby mode.
• Power Supply Rejection Ratio (PSRR): Excellent PSRR ranging from 80dB to 55dB across frequencies from 1kHz to 100kHz, ensuring high performance in noisy environments.
• Control Features: Includes an enable pin, allowing for dynamic control of the regulator's operation.
• Protection Features: Over-current protection, over-temperature protection, and soft start functionality ensure robustness and reliability.
• Compliance: RoHS3 compliant and REACH unaffected, meeting stringent environmental regulations.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for various manufacturing environments.

LD39030ADTPU28R Applications

The LD39030ADTPU28R is ideal for applications requiring a stable and efficient power supply with low dropout voltage. Its features make it particularly suitable for:

• Battery-powered devices: The low dropout voltage and low quiescent current make it ideal for extending battery life in portable electronics.
• Embedded systems: Provides a reliable power source for microcontrollers, sensors, and other low-power components.
• Consumer electronics: Suitable for powering small peripherals and accessories that require a stable 2.8V supply.
• Industrial applications: The robust protection features and wide input voltage range make it suitable for industrial control systems and instrumentation.

Conclusion of LD39030ADTPU28R

The LD39030ADTPU28R from STMicroelectronics is a versatile and efficient linear voltage regulator, offering a fixed 2.8V output with a maximum dropout voltage of 0.33V at 300mA. Its low quiescent current and excellent PSRR make it suitable for applications where power efficiency and noise rejection are critical. The inclusion of enable control and comprehensive protection features further enhances its reliability and flexibility. The LD39030ADTPU28R is an excellent choice for designers looking to optimize power supply performance in a wide range of low-power applications.