LM337 1.5A Adjustable Negative Voltage Regulator TO-220 Package

The LM337 is a high-performance adjustable negative voltage regulator capable of delivering up to 1.5A output current with an adjustable output voltage range of approximately –1.25V to –37V. It is designed to provide stable, precise, and reliable negative voltage regulation with excellent line and load regulation.

Housed in a TO-220 package, the LM337 allows efficient heat dissipation and can be easily mounted on a heatsink for higher power applications. It includes built-in current limiting, thermal shutdown, and safe-area protection, making it robust and suitable for industrial, laboratory, and DIY power supply designs.

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Applications

• Dual-polarity (±) power supplies
• Negative voltage rails for op-amps and analog circuits
• Adjustable bench power supplies
• Instrumentation and measurement equipment
• Audio amplifiers and preamplifiers
• Industrial and embedded systems
• Post-regulation for switching power supplies
• General-purpose negative voltage regulation

Features

• Output Current: Up to 1.5A
• Adjustable Output Voltage: –1.25V to –37V
• Package: TO-220
• Excellent line and load regulation
• Built-in current limiting, thermal shutdown, and safe-area protection
• Short-circuit protected
• Simple external resistor network to set output voltage
• High reliability and long service life
• Easy to mount on heatsink