L7805CD2T-TR

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The L7805CD2T-TR is a three-terminal positive linear voltage regulator from the STMicroelectronics L78xx series, housed in a D2PAK (TO-263) surface-mount package. It provides a fixed output voltage of 5 V with a maximum output current capability of 1.5 A. The device supports a maximum input voltage of 35 V and operates within a junction temperature range of 0°C to +125°C. Key electrical characteristics include a typical static current of 8 mA, a line regulation of 100 mV, and a load regulation of 100 mV. It features an internal power dissipation protection mechanism including thermal overload shutdown, short-circuit current limiting, and safe operating area (SOA) protection.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated safety mechanisms including thermal overload protection, short-circuit current limiting, and output transition safe operating area (SOA) protection for robust operation under fault conditions.
• Designed for local on-card regulation to eliminate distribution problems associated with single-point regulation systems.
• Capable of delivering up to 1.5 A output current when adequate heat sinking is provided.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• General-purpose positive voltage regulation in electronic circuits
• Local on-board voltage regulation for integrated circuits
• Power supply sections requiring fixed 5 V output

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'CD2T' corresponds to the D2PAK-3 surface-mount package rather than through-hole variants like TO-220. Confirm the '-TR' designation indicates tape-and-reel packaging for automated assembly processes. Ensure the component meets RoHS compliance requirements if applicable to your manufacturing standards. Cross-reference the manufacturer part number directly with official STMicroelectronics documentation to avoid confusion with similar L78xx family members.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 5 V output is required in a surface-mount design. The D2PAK package offers improved thermal performance compared to smaller SOT packages but requires appropriate PCB copper area for heat dissipation. Consider the 35 V maximum input voltage limit and ensure the input-output differential does not exceed thermal limits at full load. This regulator is suitable for applications where moderate precision and standard dropout characteristics are acceptable.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This device belongs to the L7800 series of three-terminal positive regulators, a widely used family of linear voltage regulators. The L78xx series is known for its simplicity, reliability, and built-in protection features. The L7805 variant specifically provides a stable 5 V output, making it a common choice for powering digital logic and other 5 V compatible components in consumer and industrial electronics.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

MC7805ABD2TR4G by onsemi is a documented equivalent alternative in the same D2PAK package.