STMicroelectronics

LD2980CM36TR  

Linear & Switching Voltage Regulators

LD2980CM36TR Description

The LD2980CM36TR is a linear regulator IC designed by STMicroelectronics, featuring a fixed output voltage of 3.6V and a maximum output current of 50mA. This device is packaged in a compact SOT23-5 surface mount package, making it suitable for applications where space is a critical factor. The LD2980CM36TR is designed to operate with a maximum input voltage of 16V and offers a low dropout voltage of 0.225V at 50mA, ensuring efficient power delivery even at low input-to-output voltage differentials.

LD2980CM36TR Features

• Fixed Output Voltage: The LD2980CM36TR provides a stable 3.6V output voltage, ideal for powering sensitive analog circuits and low-power microcontrollers.
• Low Dropout Voltage: With a maximum dropout voltage of 0.225V at 50mA, this regulator can maintain regulation even when the input voltage is close to the output voltage, enhancing efficiency in low-voltage applications.
• Low Quiescent Current: The device features a low quiescent current of 150 µA, making it suitable for battery-powered devices where minimizing power consumption is crucial.
• High PSRR: The Power Supply Rejection Ratio (PSRR) of 63dB at 1kHz ensures that the regulator can effectively filter out noise from the input power supply, providing a clean output voltage.
• Enable Control: The enable feature allows for dynamic control of the regulator's operation, enabling power-saving modes and reducing power consumption when the regulator is not in use.
• Protection Features: The LD2980CM36TR includes over-current and over-temperature protection, safeguarding the device and connected circuits from potential damage due to excessive current or temperature.
• Compliance and Packaging: The device is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. It is available in a Tape & Reel (TR) package, facilitating automated assembly processes.

LD2980CM36TR Applications

The LD2980CM36TR is well-suited for a variety of applications due to its compact size, low dropout voltage, and high PSRR. Some specific use cases include:

• Battery-Powered Devices: The low quiescent current and low dropout voltage make this regulator ideal for portable devices such as handheld electronics, where battery life and efficiency are critical.
• Analog Circuits: The high PSRR and stable output voltage ensure that sensitive analog circuits, such as sensors and audio amplifiers, receive a clean power supply, minimizing noise and interference.
• Microcontroller Power Supplies: The fixed output voltage and enable control feature make it suitable for powering microcontrollers and other low-power digital circuits, allowing for efficient power management.
• Medical Devices: The compact size and compliance with environmental standards make it suitable for use in medical devices where reliability and precision are paramount.

Conclusion of LD2980CM36TR

The LD2980CM36TR is a versatile linear regulator IC that offers a combination of high performance and compact design. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for a wide range of applications, particularly those requiring efficient power management and minimal noise. Despite being marked as obsolete, the LD2980CM36TR remains a reliable option for engineers seeking a robust and efficient power management solution.

LD2980CM36TR Documents

Download datasheets and manufacturer documentation for LD2980CM36TR

Datasheets :

LD2980(AB,C)xx      

HTML Datasheet :

LD2980(AB,C)xx