NCP337BTG

Overview

The NCP337BTG is a three-terminal adjustable negative voltage regulator manufactured by onsemi. It provides an output current exceeding 1.5 A with an adjustable output voltage range from -1.2 V to -37 V. The device accepts a maximum input voltage of -40 V and operates within a junction temperature range of -40 °C to +125 °C. It utilizes a TO-220AB-3 through-hole package, featuring internal thermal overload protection, short-circuit current limiting, and safe area compensation for reliable operation in linear regulation applications.

Feature Summary

• Adjustable output voltage ranging from -1.2 V to -37 V using only two external resistors
• Internal thermal overload protection and short-circuit current limiting that remains stable across temperature variations
• Output transistor safe area compensation ensures robust performance under varying load conditions

Applications

• Local and board-level voltage regulation
• Programmable output power supplies
• Precision current regulators when used with a fixed resistor between the adjust and output terminals

Procurement Notes

Verify the specific suffix 'BTG' against the manufacturer's official datasheet to confirm pinout compatibility and package dimensions. Ensure the procurement source provides valid RoHS compliance documentation. Cross-reference the part number with the latest onsemi product change notices to verify manufacturing status and any potential material substitutions.

Selection Notes

Select this component for designs requiring high-current negative voltage regulation without complex feedback networks. The TO-220AB package facilitates heat dissipation for continuous 1.5 A loads. Consider the minimum dropout voltage requirements relative to the input supply rail to ensure proper regulation. Verify that the application does not exceed the maximum input voltage rating of -40 V.

Part Context

This component belongs to the LM337/NCP337 family of adjustable negative linear voltage regulators. It serves as a direct functional equivalent to standard industry LM337 devices but includes enhanced features such as improved safe area compensation. The series is widely utilized in industrial and commercial power supply architectures requiring stable negative rails.

Replacement Considerations

The LM337BTG is a confirmed substitute part number with identical electrical characteristics and pin configuration.