STMicroelectronics

LD29150PT33R

LD29150PT33R Description

The LD29150PT33R is a linear voltage regulator designed by STMicroelectronics, offering a fixed output voltage of 3.3V and capable of delivering a maximum output current of 1.5A. This regulator is housed in a PPAK package, making it suitable for surface-mount applications. Despite being marked as obsolete, the LD29150PT33R remains a reliable choice for various electronic systems due to its robust performance and compliance with industry standards.

LD29150PT33R Features

• Output Type: Fixed, ensuring a stable 3.3V output.
• Input Voltage Range: The regulator can operate with a maximum input voltage of 14V, providing flexibility in power supply design.
• Output Current: Capable of delivering up to 1.5A, making it suitable for applications requiring moderate to high current loads.
• Dropout Voltage: A maximum dropout voltage of 0.7V at 1.5A ensures efficient power conversion even at low input-to-output voltage differentials.
• Quiescent Current: Low quiescent current of 180 µA minimizes power consumption during idle states.
• Power Supply Rejection Ratio (PSRR): Achieves 67dB at 120Hz, effectively filtering out noise from the input power supply.
• Control Features: Includes an enable function, allowing for dynamic control of the regulator's operation.
• Protection Features: Over current and over temperature protection ensure reliable operation and prevent damage under abnormal conditions.
• Compliance: REACH unaffected and RoHS3 compliant, meeting environmental and regulatory standards.
• Packaging: Supplied in a PPAK package with a moisture sensitivity level (MSL) of 1 (unlimited), ensuring durability and ease of handling during manufacturing processes.

LD29150PT33R Applications

The LD29150PT33R is ideal for a range of applications where a stable 3.3V supply is required. Its ability to deliver up to 1.5A makes it suitable for powering microcontrollers, sensors, and other low-power devices. The regulator's low dropout voltage and high PSRR make it particularly useful in systems where input voltage fluctuations are common, such as in battery-powered devices or automotive electronics. The enable function allows for easy integration into systems requiring power management, further enhancing its versatility.

Conclusion of LD29150PT33R

The LD29150PT33R is a robust linear voltage regulator that offers a reliable 3.3V output with a maximum current of 1.5A. Its low dropout voltage, high PSRR, and protection features make it a standout choice for applications requiring stable power delivery and noise reduction. Despite being marked as obsolete, its compliance with industry standards and robust performance ensure it remains a viable option for various electronic systems. For engineers seeking a compact, efficient, and reliable regulator, the LD29150PT33R is an excellent choice, especially in applications where a fixed 3.3V supply is essential.