L78M05TL-E-SY

Overview

The L78M05TL-E-SY is a linear voltage regulator manufactured by Sanyo, designed to provide a stable 5V output. It belongs to the L78M series of positive voltage regulators, which are known for their simplicity and reliability in power management applications. The component is RoHS compliant, indicating adherence to environmental standards regarding hazardous substances. As a linear regulator, it operates by dissipating excess energy as heat to maintain a constant output voltage despite variations in input voltage or load conditions.

Feature Summary

• Provides a fixed 5V DC output voltage
• Linear regulation technology for noise-sensitive circuits
• RoHS compliant construction

Applications

• General purpose power supply conditioning
• Biasing circuits requiring stable 5V reference
• Embedded systems with low current demands

Procurement Notes

Verify manufacturer origin as Sanyo Semiconductor, noting historical corporate changes involving onsemi and Hitachi Chemical. Confirm RoHS compliance status through official datasheets, as some listings indicate non-compliance. Check part status carefully; while some sources list it as active, others may reflect end-of-life notifications from related entities. Ensure package type matches design requirements before ordering.

Selection Notes

Select this component when a simple, cost-effective 5V linear regulator is needed for low-to-medium current applications. Consider thermal management due to linear regulation efficiency losses. Verify that the input voltage range supports the required dropout voltage. Compare against modern equivalents if higher efficiency or smaller footprint is critical, as older linear regulators may have larger physical dimensions.

Part Context

This part is part of the broader L78M family of three-terminal positive voltage regulators. These devices were widely used in consumer electronics and industrial controls before being largely superseded by switching regulators and newer linear ICs. The L78M series typically offers better performance than the standard L78 series in terms of ripple rejection and thermal stability.

Replacement Considerations

Direct substitutes include other 5V linear regulators from various manufacturers such as LM7805 variants. Cross-reference with onsemi or STMicroelectronics parts if Sanyo availability is limited. Ensure pinout compatibility and thermal characteristics match the original design constraints.