onsemi

LM317LBZ

LM317LBZ Description

The LM317LBZ is a linear voltage regulator designed by onsemi, a leading manufacturer in the power management integrated circuit (PMIC) category. This regulator is known for its adjustable output voltage, making it highly versatile for a variety of applications. It features a maximum input voltage of 40V and can deliver an output current of up to 100mA. The LM317LBZ is housed in a through-hole TO92 package, which is ideal for applications requiring robust mechanical stability and ease of integration.

LM317LBZ Features

• Adjustable Output Voltage: The LM317LBZ offers an adjustable output voltage ranging from a minimum of 1.2V to a maximum of 37V, providing flexibility for various power supply requirements.
• High Input Voltage Capability: With a maximum input voltage of 40V, this regulator can handle a wide range of input voltages, making it suitable for applications with varying power sources.
• Low Quiescent Current: The regulator operates with a quiescent current of only 10 mA, ensuring high efficiency and minimal power loss, which is crucial for battery-powered devices.
• High PSRR: The Power Supply Rejection Ratio (PSRR) of 80dB at 120Hz ensures that the regulator can effectively filter out noise from the input voltage, providing a clean and stable output.
• Protection Features: The LM317LBZ includes over-current, over-temperature, and short-circuit protection, safeguarding both the regulator and the connected circuitry from potential damage.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the LM317LBZ is suitable for use in environments with varying humidity levels, ensuring reliability and longevity.
• Compliance: The regulator is REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring compliance with international regulations and standards.

LM317LBZ Applications

The LM317LBZ is ideal for a wide range of applications due to its adjustable output voltage and robust protection features. Some specific use cases include:

• Battery Chargers: The adjustable output voltage and low quiescent current make it suitable for charging various types of batteries efficiently.
• Power Supplies: The regulator can be used in linear power supplies to provide a stable output voltage, ensuring reliable operation of connected devices.
• Consumer Electronics: The LM317LBZ is well-suited for consumer electronics where a stable and adjustable power supply is required.
• Industrial Equipment: The high input voltage capability and protection features make it ideal for industrial applications where reliability and robustness are paramount.

Conclusion of LM317LBZ

The LM317LBZ is a versatile and reliable linear voltage regulator, offering adjustable output voltage, high input voltage capability, and robust protection features. Despite being marked as obsolete, its technical specifications and performance benefits make it a valuable component for various applications. The low quiescent current and high PSRR ensure efficient and stable operation, while the through-hole TO92 package provides mechanical stability and ease of integration. Whether used in battery chargers, power supplies, consumer electronics, or industrial equipment, the LM317LBZ stands out as a reliable choice for power management solutions.