L7805CD2T

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 5V output with a maximum continuous current of 1.5A and supports input voltages up to 35V. The device features internal thermal overload protection, short-circuit protection, and output safe operating area (SOA) protection. Operating temperatures range from 0°C to 125°C, with a maximum junction temperature of 150°C. Static current is approximately 8mA, and line/load regulation is typically 100mV.

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

• Provides local on-card regulation to eliminate distribution problems associated with single-point regulation.
• Internal circuitry includes current limiting, thermal shut-down, and safe area protection for robust operation.
• Designed as a fixed voltage regulator but can be configured for adjustable outputs using external components.

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

• General-purpose power supplies
• On-card regulation modules
• Battery chargers

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

Verify the specific suffix (e.g., -TR) to confirm tape-and-reel packaging versus tube packaging when sourcing. Ensure the ordering part number matches the required D2PAK footprint and pinout configuration. Cross-reference datasheet revisions to confirm compliance with current RoHS standards and material declarations before final procurement.

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

Select this component for applications requiring a simple, reliable 5V supply with moderate current demands up to 1.5A. Consider the thermal performance of the D2PAK package and ensure adequate heat sinking is provided to maintain operation within the specified temperature limits under high load conditions.

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

This device belongs to the L78xx family of three-terminal positive regulators, widely used for basic voltage stabilization. The L7805 variant specifically targets 5V logic and analog circuits. The CD2T designation indicates the D2PAK surface-mount package, offering better thermal dissipation than through-hole alternatives while maintaining compatibility with standard PCB layouts.

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

• MC7805ABD2TR4G

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

Can the L7805CD2T be used to create an adjustable voltage source?

Yes, although designed primarily as a fixed 5V regulator, it can be used with external components to obtain adjustable voltage and current outputs.

What protection features are integrated into the L7805CD2T?

The device includes internal current limiting, thermal shut-down protection, and output transition Safe Operating Area (SOA) protection.