L78M08ACDT

Overview

The L78M08ACDT is a three-terminal positive linear regulator from the L78MxxA series, manufactured by STMicroelectronics. It provides a fixed output voltage of 8 V with an output current capability up to 500 mA. The device features ±2% output voltage tolerance and operates within a junction temperature range of 0 to 125 °C for the AC version. It is housed in a DPAK surface-mount package.

Feature Summary

• Integrated thermal overload protection shuts down the circuit during excessive power conditions.
• Internal short-circuit protection limits maximum output current to prevent damage.
• Output transistor safe-area compensation reduces output short-circuit current as voltage across the pass transistor increases.

Applications

• Local on-card regulation
• Current regulator circuits
• Adjustable output regulators

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and environmental compliance grade. Ensure the selected variant matches the required operating temperature range and pin configuration for your design.

Selection Notes

Select this component when a fixed 8 V output is required with moderate current demands up to 500 mA. Consider the DPAK package for surface-mount applications requiring local regulation without single-point distribution issues.

Part Context

This part belongs to the L78MxxA series of precision 500 mA regulators available in TO-220 and DPAK packages. The series offers multiple fixed output voltages including 5, 6, 8, 9, 10, 12, 15, and 24 V, designed for wide-range applications.

Replacement Considerations

L78M08ABDT