STMicroelectronics

LD39300PT-R

LD39300PT-R Description

The LD39300PT-R is a high-performance linear voltage regulator from STMicroelectronics, designed for applications requiring adjustable output voltages. With a single output regulator, this device is capable of delivering up to 3A of current, making it suitable for a variety of power management needs. The LD39300PT-R features a positive output configuration and is adjustable between 1.22V and 5V, providing flexibility in system design. This obsolete device is compliant with the RoHS3 directive and is unaffected by REACH regulations, ensuring environmental compliance.

LD39300PT-R Features

• Adjustable Output Voltage: The LD39300PT-R offers an adjustable output voltage range from 1.22V to 5V, providing flexibility in system design.
• High Current Output: Capable of delivering up to 3A of output current, this device is suitable for applications requiring high power.
• Low Voltage Dropout: With a maximum voltage dropout of 0.4V at 3A, the LD39300PT-R maintains high efficiency even under heavy load conditions.
• Robust Protection Features: Incorporates over current and over temperature protection to safeguard the device and the system.
• Excellent PSRR: A power supply rejection ratio of 65dB to 55dB (120Hz to 1kHz) ensures stable operation in noisy environments.
• Low Quiescent Current: A quiescent current of only 5µA contributes to low power consumption in standby modes.

LD39300PT-R Applications

The LD39300PT-R is ideal for applications where adjustable output voltages and high current are required. Some specific use cases include:

• Portable Electronics: Due to its adjustable output and high current capabilities, it is well-suited for powering portable devices like smartphones and tablets.
• Industrial Equipment: The robust protection features and high current output make it suitable for industrial applications where reliability is critical.
• Automotive Systems: The LD39300PT-R can be used in automotive systems where adjustable voltages and high currents are needed for various electronic components.

Conclusion of LD39300PT-R

While the LD39300PT-R is an obsolete product, it remains a capable solution for applications requiring adjustable output voltages and high current outputs. Its unique features, such as low voltage dropout and excellent PSRR, provide advantages over similar models. Although it may no longer be in production, the LD39300PT-R can still be a valuable component in existing designs or for applications where high performance and reliability are paramount.