L78L09CD13TR

Overview

The L78L09CD13TR is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, housed in an 8-SOIC surface-mount package. It provides a fixed output voltage of 9 V with a maximum output current capability of 100 mA. The device accepts a DC input voltage up to 30 V and operates within a junction temperature range of 0 °C to 125 °C. It incorporates internal thermal overload protection and short-circuit protection, eliminating the need for external components.

Feature Summary

• Provides a fixed 9 V output with ±8% tolerance
• Integrates internal current limiting and thermal shutdown mechanisms
• Operates without requiring external components

Applications

• Local or on-card regulation
• Elimination of noise associated with single-point regulation
• Replacement for Zener diode/resistor combinations

Procurement Notes

Verify the specific suffix 'CD13TR' against official documentation to confirm the SO-8 package type, 9 V output voltage, and ±8% accuracy grade. Ensure compatibility with the required operating temperature range and input voltage specifications before procurement.

Selection Notes

Select this component when a fixed 9 V supply is needed with low current requirements up to 100 mA. Consider the SO-8 package for surface-mount assembly and verify that the input voltage does not exceed the 30 V absolute maximum rating.

Part Context

This part belongs to the L78Lxx series of three-terminal positive regulators designed for general-purpose applications. The series offers various fixed output voltages and is characterized by its robust internal protection features and ease of use in power management circuits.

Replacement Considerations

L78L09ACD13TR