LM140LAH-15/NOPB

Overview

The LM140LAH-15/NOPB is a three-terminal positive linear voltage regulator from the LM140L series, manufactured by Texas Instruments. It provides a fixed output voltage of 15 V with a maximum output current of 100 mA. The device features a TO-39-3 through-hole package and operates within an extended temperature range of -55°C to +125°C. Key electrical specifications include a line regulation of 0.04%/V, load regulation of 0.01%/mA, and a typical power supply rejection ratio (PSRR) of 52 dB. The quiescent current is specified at 4.5 mA.

Feature Summary

• Provides a stable fixed positive output voltage suitable for precision applications requiring regulated power supplies.
• Designed for operation in extended industrial temperature environments ranging from -55°C to +125°C.
• Utilizes a hermetically sealed metal can package to ensure durability and reliable performance in harsh conditions.

Applications

• Precision analog circuit power supplies
• Industrial control system regulation
• Military and aerospace electronic equipment

Procurement Notes

Verify the component authenticity by checking the manufacturer part number against official Texas Instruments documentation. Confirm that the suffix NOPB indicates lead-free and RoHS compliance status as defined in the datasheet. Ensure the ordering information matches the specific LM140LAH-15 variant to guarantee correct voltage and package specifications. Cross-reference the supplier's certification documents with the manufacturer's product compliance records.

Selection Notes

Select this regulator when a fixed 15 V output is required with moderate current capabilities up to 100 mA. Consider the TO-39-3 package for through-hole mounting requirements in space-constrained or high-reliability designs. Evaluate the thermal management needs based on the input-output voltage differential and load current. Compare line and load regulation specs against application tolerance requirements to ensure adequate performance stability.

Part Context

This component belongs to the LM140L series of three-terminal positive regulators, which are designed for general-purpose linear regulation tasks. The series offers various fixed voltage options within a robust metal can package architecture. These devices are engineered to provide reliable performance across wide operating temperature ranges, making them suitable for demanding industrial and military applications where standard plastic packages may not suffice.

Replacement Considerations

LM140LAH-15