onsemi

LM337D2TG

LM337D2TG Description

The LM337D2TG from onsemi is a high-performance, negative adjustable linear voltage regulator designed for precision power management applications. Delivering 1.5A of continuous output current, this regulator is ideal for systems requiring stable, adjustable negative voltage rails. Housed in a D2PAK-3 (TO-263) surface-mount package, it offers efficient thermal dissipation and robust performance in industrial and commercial environments. With an operating temperature range of 0°C to 125°C, the LM337D2TG ensures reliability under demanding conditions.

LM337D2TG Features

• Adjustable Negative Output: Provides flexibility in setting the output voltage via external resistors.
• High Current Capability: Supports 1.5A output current with over-current and over-temperature protection for enhanced system safety.
• Low Quiescent Current: 6 mA typical quiescent current minimizes power loss in standby modes.
• Excellent PSRR: 77dB at 120Hz ensures superior noise rejection, critical for sensitive analog circuits.
• Wide Operating Range: Compatible with input voltages up to -40V, accommodating diverse power supply designs.
• Robust Packaging: D2PAK-3 offers superior thermal performance for high-power applications.
• Compliance: ROHS3 and REACH compliant, meeting global environmental standards.

LM337D337D2TG Applications

The LM337D2TG excels in applications requiring precise negative voltage regulation, including:

• Power Supplies: Bench power supplies, dual-rail systems, and industrial power modules.
• Audio Equipment: Negative rail generation for op-amp circuits and audio amplifiers.
• Test & Measurement: Calibration equipment and lab instruments demanding stable voltage references.
• Industrial Systems: Motor controls, automation, and instrumentation where reliability is critical.
• Telecom Infrastructure: Base stations and networking hardware requiring low-noise power rails.

Conclusion of LM337D2TG

The LM337D2TG stands out as a versatile, high-current negative voltage regulator with robust protection features and excellent noise performance. Its adjustable output, thermal efficiency, and compliance with environmental standards make it a preferred choice for engineers designing precision power systems. While marked as obsolete, its proven reliability ensures continued relevance in legacy and specialized applications. For projects demanding stable negative voltage regulation, the LM337D2TG remains a dependable solution.