L7924CV

Overview

The L7924CV is a fixed negative linear voltage regulator from the L79 series, manufactured by STMicroelectronics. It provides a stable -24 V output with a maximum continuous current of 1.5 A. The device operates within an input voltage range of -14.5 V to -35 V and features internal thermal overload protection and short-circuit current limiting. It utilizes a TO-220-3 through-hole package and supports junction temperatures up to +150 °C.

Feature Summary

• Provides a fixed negative output voltage for power supply applications
• Includes internal thermal overload protection to prevent damage during overheating
• Features short-circuit current limiting to protect the device under fault conditions

Applications

• Negative rail generation in dual-supply electronic circuits
• Power management modules requiring stable negative voltage references
• Industrial equipment power supplies utilizing the L79 series topology

Procurement Notes

Verify the specific suffix 'CV' against the manufacturer's official datasheet to confirm the package type and temperature rating. Ensure the ordering code matches the exact electrical specifications required for the design. Cross-reference the part number with authorized distributors to confirm authenticity and traceability before procurement.

Selection Notes

Select this component when a fixed -24 V negative supply is required with up to 1.5 A load capacity. Consider the thermal dissipation requirements due to the linear regulation method. Verify that the input voltage differential remains within the specified limits to ensure proper operation and avoid excessive heat generation in the TO-220-3 package.

Part Context

This component belongs to the L79 series of fixed negative linear regulators produced by STMicroelectronics. The series offers various fixed output voltages to support diverse power supply designs. The L7924CV specifically targets applications needing a regulated -24 V rail, sharing common protection features and packaging standards with other members of the family.

Replacement Considerations

Compatible substitutes include other manufacturers' equivalents such as LM7924 or UA7924, provided they meet the same -24 V output, 1.5 A current, and TO-220-3 package constraints. Verify pinout compatibility and thermal performance characteristics before substitution.