L7824CV-DG

Overview

The L7824CV-DG is a positive linear voltage regulator from the STMicroelectronics L78 series, providing a fixed 24 V output with a maximum current of 1.5 A. It operates within an input voltage range of 26 V to 40 V and features a TO-220-3 through-hole package. Key electrical parameters include a line regulation of 240 mV, load regulation of 100 mV, and a typical power supply rejection ratio (PSRR) of 54 dB at 120 Hz. The device maintains a static current of 4.6 mA and functions reliably across a temperature range of 0°C to +125°C.

Feature Summary

• Provides local on-card voltage regulation to eliminate single-point regulation issues
• Includes internal thermal shutdown and overload current protection for safety
• Features output short-circuit protection and safe operating area (SOA) limits

Applications

• General-purpose electronic equipment requiring stable 24 V DC power
• Industrial control systems utilizing fixed voltage regulation
• Power supply units needing local card-level stabilization

Procurement Notes

Verify the specific suffix 'DG' against the manufacturer's official documentation to confirm exact marking and packaging specifications. Ensure the procurement channel provides valid traceability for the STMicroelectronics brand. Confirm that the TO-220-3 package variant matches the design requirements for thermal dissipation and mounting constraints in the target application.

Selection Notes

Select this component when a fixed 24 V output is required with up to 1.5 A load capacity. The TO-220-3 package suits applications where through-hole mounting is preferred for mechanical stability. Consider the 240 mV line regulation and 54 dB PSRR for circuits sensitive to input variations. Verify that the input voltage remains between 26 V and 40 V to ensure proper regulation without exceeding the maximum rating.

Part Context

This part belongs to the L78xx series of three-terminal positive linear regulators manufactured by STMicroelectronics. The series is designed for broad industrial use, offering fixed outputs ranging from 5 V to 24 V. The L7824CV-DG specifically targets applications requiring robust, simple voltage regulation with integrated protection features, serving as a reliable solution for standard power management tasks.

Replacement Considerations

L7824CP: Alternative pin-compatible version with similar electrical characteristics but potentially different packaging or manufacturing lot details.