STMicroelectronics

LM317P

LM317P Description

The LM317P is a versatile linear voltage regulator designed and manufactured by STMicroelectronics. It is a positive adjustable voltage regulator with an output current capability of 1.5A. The LM317P features a wide input voltage range of up to 40V and can provide a minimum output voltage of 1.2V, with a maximum output voltage of 37V. The device is designed to operate over a wide temperature range of 0°C to 125°C, making it suitable for various applications.

LM317P Features

• Adjustable Output Voltage: The LM317P offers an adjustable output voltage, providing flexibility in designing power supply circuits.
• High Output Current: Capable of delivering up to 1.5A of output current, making it suitable for applications requiring high current.
• Wide Input Voltage Range: With an input voltage range of up to 40V, the LM317P can handle a variety of input voltage sources.
• Robust Protection Features: Incorporates over current, over temperature, and short circuit protection to ensure reliable operation.
• High PSRR: Provides a high power supply rejection ratio (PSRR) of 80dB to 65dB at 120Hz, ensuring stable operation in noisy environments.
• Low Quiescent Current: Consumes only 10mA of quiescent current, reducing power consumption in low power applications.
• REACH Unaffected and RoHS Compliant: Complies with environmental regulations, making it suitable for use in environmentally conscious designs.

LM317P Applications

The LM317P is ideal for a wide range of applications due to its adjustable output, high current capability, and robust protection features. Some specific use cases include:

• Power Supply Design: Can be used to design adjustable power supplies for various electronic devices.
• Battery Charging Circuits: Suitable for designing battery charging circuits that require adjustable output voltage and current.
• Industrial Control Systems: Can be used in industrial control systems where stable and adjustable voltage is required.
• Telecommunications Equipment: Ideal for powering telecommunications equipment that requires high current and stable voltage.

Conclusion of LM317P

The LM317P from STMicroelectronics is a powerful and versatile linear voltage regulator that offers adjustable output voltage, high output current, and robust protection features. Its wide input voltage range, high PSRR, and low quiescent current make it an ideal choice for a variety of applications, including power supply design, battery charging circuits, industrial control systems, and telecommunications equipment. With its REACH unaffected and RoHS compliant status, the LM317P is also an environmentally friendly option for your electronic designs.