STMicroelectronics

LM337SP

The LM337SP is a member of STMicroelectronics' LM337 series of adjustable three-terminal negative voltage regulators. The "SP" in the model number indicates that it is a surface-mount package version of the LM337. Here is a brief description of the LM337SP, its features, and some of its applications:

Description:

The LM337SP is a precision negative voltage regulator that can provide a wide range of output voltages from -1.2V to -37V. It is designed to operate over a wide input voltage range and can handle input voltages as high as 40V to 60V, depending on the specific model variant. The device is available in a small, space-saving surface-mount package, making it suitable for use in compact electronic designs.

Features:

1. Adjustable output voltage range: -1.2V to -37V.
2. Wide input voltage range: Suitable for input voltages up to 40V to 60V (depending on the variant).
3. High output current capability: Can deliver up to 1A of output current.
4. Thermal protection: The LM337SP includes thermal shutdown protection to prevent damage due to overheating.
5. Short-circuit protection: The device is protected against short-circuit conditions.
6. Low dropout voltage: The LM337SP has a low dropout voltage, making it suitable for use with low-voltage input sources.
7. Surface-mount package: The LM337SP is available in a small, surface-mount package, which is ideal for use in compact electronic designs.

Applications:

1. Power supplies: The LM337SP can be used to generate negative voltages for various power supply applications, including linear power supplies and switching power supplies.
2. Audio equipment: The device is commonly used in audio equipment, such as amplifiers and preamplifiers, to provide the necessary negative supply voltages.
3. Test and measurement equipment: The LM337SP can be used in test and measurement equipment that requires a stable, adjustable negative voltage reference.
4. Industrial control systems: The device can be used in industrial control systems to provide negative voltages for various electronic components.
5. Medical equipment: The LM337SP can be used in medical equipment that requires stable, adjustable negative voltages for operation.
6. Battery charging circuits: The device can be used in battery charging circuits to provide a regulated negative voltage for charging rechargeable batteries.

The LM337SP is a versatile and widely used adjustable negative voltage regulator that can be found in a variety of electronic applications where a stable, adjustable negative voltage is required.