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LM337LZ

LM337LZ Description

The LM337LZ is a high-performance, adjustable negative linear voltage regulator designed for a wide range of power management applications. Manufactured by National Semiconductor, this device offers a quiescent current of only 5 mA, making it highly efficient for low-power systems. With a PSRR (Power Supply Rejection Ratio) that ranges from 80 dB to 65 dB at 120 Hz, the LM337LZ ensures stable and clean output voltage even under varying input conditions. It can deliver up to 100 mA of output current, making it suitable for applications requiring moderate power levels. The regulator features over-current, over-temperature, and short-circuit protection, ensuring robustness and reliability in demanding environments.

The LM337LZ is housed in a through-hole package, making it easy to integrate into existing designs and suitable for manual assembly processes. It is classified under the ECCN (Export Control Classification Number) EAR99 and HTSUS (Harmonized Tariff Schedule of the United States) code 8542.39.0001. The device is REACH unaffected, ensuring compliance with environmental regulations. With its active product status, the LM337LZ is a reliable choice for engineers looking for a standard, negative output regulator.

LM337LZ Features

• Adjustable Output Voltage: The LM337LZ offers an adjustable negative output voltage, providing flexibility in power supply design.
• Low Quiescent Current: With a quiescent current of just 5 mA, the regulator is ideal for battery-operated and low-power applications.
• High PSRR: The PSRR of 80 dB to 65 dB at 120 Hz ensures minimal noise and ripple in the output voltage, contributing to high signal integrity.
• Protection Features: The device includes over-current, over-temperature, and short-circuit protection, enhancing its reliability and durability.
• Through-Hole Mounting: The through-hole package type facilitates easy integration and manual assembly, making it suitable for a variety of manufacturing processes.
• Compliance and Status: The LM337LZ is REACH unaffected and classified under ECCN EAR99, ensuring compliance with environmental and export regulations. It is also an active product, ensuring availability and support.

LM33L7Z Applications

The LM337LZ is well-suited for a variety of applications where a reliable, adjustable negative voltage regulator is required. Some specific use cases include:

• Power Supplies: Ideal for designing power supplies that require a stable negative voltage output.
• Battery Chargers: Suitable for battery charging applications where low quiescent current and high PSRR are critical.
• Medical Equipment: The high reliability and protection features make it suitable for medical devices that require precise power management.
• Industrial Control Systems: The robustness and protection features ensure reliable operation in harsh industrial environments.
• Consumer Electronics: The flexibility and efficiency of the LM337LZ make it a good fit for consumer electronics that require a negative voltage rail.

Conclusion of LM337LZ

The LM337LZ is a versatile and reliable negative linear voltage regulator that offers a range of features and benefits for power management applications. Its low quiescent current, high PSRR, and adjustable output voltage make it an excellent choice for low-power and high-precision systems. The inclusion of over-current, over-temperature, and short-circuit protection ensures robustness and reliability, making it suitable for a wide range of applications from consumer electronics to industrial control systems. With its through-hole package and compliance with environmental regulations, the LM337LZ is a practical and efficient solution for engineers and designers in the electronics industry.