STMicroelectronics

LD39150PT33-R

LD39150PT33-R Description

The LD39150PT33-R is a linear regulator IC designed for power management applications, offering a fixed output voltage of 3.3V and a maximum output current of 1.5A. Manufactured by STMicroelectronics, this device is housed in a PPAK package, making it suitable for surface-mount applications. Despite its obsolete status, the LD39150PT33-R remains a reliable choice for applications requiring a stable and efficient power supply.

LD39150PT33-R Features

• Output Type: Fixed, ensuring a stable 3.3V output voltage.
• Input Voltage Range: Up to 6V, providing flexibility in power source selection.
• Output Current: Capable of delivering up to 1.5A, suitable for a wide range of devices.
• Low Dropout Voltage: A maximum dropout voltage of 0.4V at 1.5A ensures high efficiency even at low input voltages.
• Quiescent Current: Low quiescent current of 2.5 mA minimizes power consumption during standby.
• Power Supply Rejection Ratio (PSRR): Ranges from 65dB to 55dB (120Hz to 1kHz), providing excellent noise rejection.
• Protection Features: Includes over-current and over-temperature protection, enhancing reliability and safety.
• Compliance: RoHS3 compliant and REACH unaffected, ensuring environmental and regulatory standards are met.
• Mounting Type: Surface mount, compatible with modern PCB assembly processes.
• Moisture Sensitivity Level (MSL): Level 1 (unlimited), suitable for various manufacturing environments.
• Packaging: Available in tape & reel (TR), facilitating automated assembly.

LD39150PT33-R Applications

The LD39150PT33-R is ideal for a variety of applications where a stable and efficient power supply is crucial. Its fixed 3.3V output and 1.5A current capability make it suitable for:

• Consumer Electronics: Powering devices such as smartphones, tablets, and IoT devices.
• Industrial Equipment: Providing stable power for sensors, actuators, and control systems.
• Telecommunications: Ensuring reliable power for base stations, routers, and other networking equipment.
• Automotive: Suitable for in-vehicle electronics, infotainment systems, and other automotive applications.
• Medical Devices: Powering diagnostic equipment, portable medical devices, and monitoring systems.

Conclusion of LD39150PT33-R

The LD39150PT33-R stands out as a robust and reliable linear regulator IC, offering a fixed 3.3V output and a maximum current of 1.5A. Its low dropout voltage and low quiescent current ensure high efficiency and minimal power loss, making it an excellent choice for applications where power consumption and thermal management are critical. The inclusion of over-current and over-temperature protection features enhances its reliability and safety. Despite being marked as obsolete, the LD39150PT33-R remains a viable option for designers seeking a proven and efficient power management solution.