STMicroelectronics

LD49300PT12R

LD49300PT12R Description

The LD49300PT12R is a linear regulator IC designed by STMicroelectronics, a leading manufacturer in the power management sector. This device is specifically engineered to provide a stable 1.2V output voltage with a maximum output current of 3A. It is housed in a PPAK package, which is ideal for surface-mount applications, ensuring robustness and reliability in various electronic systems.

LD49300PT12R Features

• Output Type: Fixed, ensuring a consistent 1.2V output voltage.
• Input Voltage Range: The regulator can operate with a maximum input voltage of 5.5V, making it suitable for applications with varying input voltage levels.
• Output Current: Capable of delivering up to 3A, the LD49300PT12R is designed to handle high-current applications efficiently.
• Low Dropout Voltage: With a maximum dropout voltage of 0.4V at 3A, this regulator maintains high efficiency even when the input voltage is close to the output voltage.
• Control Features: The enable feature allows for dynamic control of the regulator, enabling power-saving modes and system optimization.
• Protection Features: Over-current and over-temperature protections ensure the device's longevity and reliability, safeguarding against potential faults and thermal runaway.
• Power Supply Current: The maximum supply current is 6 mA, contributing to low power consumption during operation.
• Quiescent Current: A quiescent current of 4 mA ensures minimal power draw when the regulator is in standby mode.
• PSRR: The power supply rejection ratio of 68dB at 120Hz ensures high performance in noisy environments, maintaining output voltage stability.
• Compliance: The LD49300PT12R is REACH unaffected and RoHS3 compliant, meeting stringent environmental and safety standards.
• Moisture Sensitivity Level: MSL 1 (Unlimited) indicates the device is suitable for a wide range of environmental conditions without requiring special handling.

LD49300PT12R Applications

The LD49300PT12R is ideal for a variety of applications where high current and stable voltage output are required. Some specific use cases include:

• Power Supply Modules: Ideal for providing stable power to critical components in power supply units.
• Embedded Systems: Suitable for embedded systems requiring high-current, low-voltage regulation.
• Telecommunications: Can be used in telecom equipment where reliable power management is crucial.
• Consumer Electronics: Applicable in consumer electronics that demand efficient power regulation and low noise.
• Automotive Electronics: Suitable for automotive applications where high reliability and robustness are essential.

Conclusion of LD49300PT12R

The LD49300PT12R from STMicroelectronics is a high-performance linear regulator designed to meet the demands of modern electronic systems. Its unique features, such as low dropout voltage, high PSRR, and robust protection mechanisms, make it a reliable choice for applications requiring stable power regulation. Despite being marked as obsolete, the LD49300PT12R remains a valuable component for engineers and designers seeking efficient power management solutions. Its compliance with environmental standards and versatile package options further enhance its appeal in various industrial and consumer applications.