L7908CV-DG

Overview

The L7908CV-DG is a three-terminal negative voltage regulator from the L79xxC series, manufactured by STMicroelectronics. It provides a fixed output voltage of -8 V with an output current capability up to 1.5 A. The device features thermal overload protection and short circuit protection. It operates within a junction temperature range of 0 to 150 °C and is housed in a TO-220 package with a dual gauge frame.

Feature Summary

• Provides local on-card regulation for negative power supplies
• Includes internal thermal overload and short circuit protection
• Compatible with split power supply configurations using positive regulators

Applications

• Negative voltage regulation in electronic circuits
• Split power supply systems requiring -8 V rails
• Local on-card voltage regulation applications

Procurement Notes

Verify the specific ordering code L7908CV-DG against official STMicroelectronics documentation to confirm the TO-220 dual gauge frame package type. Ensure that application requirements align with the absolute maximum ratings, particularly regarding input voltage limits and thermal dissipation capabilities under load conditions.

Selection Notes

Select this component when a fixed -8 V negative rail is required with up to 1.5 A current capacity. Consider the TO-220 package for through-hole mounting and adequate heat sinking to support high current operation. Verify compatibility with existing positive voltage regulators if designing split power supplies.

Part Context

The L7908CV-DG belongs to the L79xxC series of three-terminal negative linear voltage regulators. This series offers various fixed output voltages including -5 V, -8 V, -12 V, and -15 V. The devices are designed for general-purpose regulation and are available in multiple packages such as TO-220, TO-220FP, and D²PAK.

Replacement Considerations

L7908CV