Texas Instruments

LM317LCPWRG4  

Linear & Switching Voltage Regulators

LM317LCPWRG4 Description

The LM317LCPWRG4 is a high-performance linear voltage regulator designed for a wide range of power management applications. Manufactured by Texas Instruments, this regulator is part of the Power Management Integrated Circuit (PMIC) category and offers adjustable output voltage capabilities. It is housed in an 8-lead thin shrink small outline package (TSSOP), making it suitable for surface-mount applications.

LM317LCPWRG4 Features

The LM317LCPWRG4 is designed to provide a stable and adjustable output voltage ranging from 1.2V to 32V, with a maximum input voltage of 38V. This regulator is capable of delivering up to 100mA of output current, making it ideal for low-power applications. The device features a quiescent current of only 2.5mA, ensuring high efficiency even at low load conditions.

One of the key features of the LM317LCPWRG4 is its excellent power supply rejection ratio (PSRR), which ranges from 80dB at low frequencies to 65dB at 120Hz. This ensures minimal noise and ripple in the output voltage, providing clean power to sensitive electronic circuits. The regulator also includes comprehensive protection features such as over-current, over-temperature, and short-circuit protection, enhancing its reliability and robustness.

The LM317LCPWRG4 operates over a wide temperature range of 0°C to 125°C, making it suitable for both commercial and industrial applications. The device is REACH unaffected and RoHS3 compliant, adhering to stringent environmental standards. The moisture sensitivity level (MSL) is rated at 1 (unlimited), ensuring the device remains unaffected by moisture during storage and handling.

LM317LCPWRG4 Applications

The LM317LCPWRG4 is ideal for a variety of applications where a stable and adjustable voltage source is required. Its low quiescent current and high PSRR make it particularly suitable for battery-operated devices, portable electronics, and low-power instrumentation. The regulator's ability to handle a wide input voltage range and provide a stable output voltage makes it a versatile choice for power supply designs in consumer electronics, automotive systems, and industrial controls.

Specific use cases include:

• Battery Chargers: The adjustable output voltage allows for precise control over the charging process, ensuring optimal battery performance and longevity.
• Portable Devices: The low quiescent and current high PSRR minimize power consumption and noise, extending battery life and improving device performance.
• Instrumentation: The stable output voltage and low noise characteristics make it suitable for powering sensitive electronic circuits in test and measurement equipment.

Conclusion of LM317LCPWRG4

The LM317LCPWRG4 from Texas Instruments is a versatile and reliable linear voltage regulator designed for a wide range of power management applications. Its adjustable output voltage, low quiescent current, and high PSRR make it an ideal choice for low-power and battery-operated devices. The comprehensive protection features and wide operating temperature range further enhance its robustness and reliability. Whether used in consumer electronics, automotive systems, or industrial controls, the LM317LCPWRG4 provides a stable and efficient power solution that meets the demands of modern electronic designs.

LM317LCPWRG4 Documents

Download datasheets and manufacturer documentation for LM317LCPWRG4

Datasheets :

LM317L Datasheet      

PCN Obsolescence/ EOL :

EOL 25/Sept/2023      

HTML Datasheet :

LM317L Datasheet