L7805AC-D2TR

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

The STMicroelectronics L7805AC-D2TR is a three-terminal positive linear voltage regulator from the L78xx series, housed in a D2PAK surface-mount package. It provides a fixed 5V output with ±2% tolerance (A grade) and supports up to 1.5A output current when adequately heat-sunk. The device operates with a maximum input voltage of 35V and features internal thermal overload protection, short-circuit protection, and output transistor safe-area compensation. It functions within an operating temperature range of 0°C to 125°C.

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

• Integrates internal current limiting and thermal shutdown mechanisms for robust operation under overload conditions.
• Provides local on-card regulation to eliminate distribution problems associated with single-point regulation systems.
• Includes output transistor safe-area compensation that reduces short-circuit current as voltage across the pass transistor increases.

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

• Local on-card voltage regulation in electronic circuits
• General-purpose power supply units requiring fixed 5V output
• Battery chargers and other DC-to-DC conversion applications

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

Verify the specific suffix 'D2TR' corresponds to the D2PAK surface-mount package and tape-and-reel packaging configuration. Confirm the 'AC' designation indicates the A-grade ±2% output voltage tolerance and extended temperature range guarantees. Ensure compatibility with standard TO-263 pinouts for PCB footprint design.

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

Select this component for applications requiring a fixed 5V output with high precision (±2%) in a surface-mount format. It is suitable for designs needing up to 1.5A output current where adequate thermal management is available. Consider alternative packages like TO-220 or TO-92 if through-hole mounting or lower current requirements are preferred.

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

This part belongs to the STMicroelectronics L78xx series of three-terminal positive regulators. The series is widely used for its simplicity and reliability, offering various fixed output voltages and packages including TO-220, TO-220FP, D²PAK, and DPAK. The L7805 variant specifically targets 5V regulation needs.

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

• L7805CD2T-TR
• MC7805ABD2TR4G

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

What is the output voltage tolerance for the L7805AC-D2TR?

The 'A' grade designation indicates a guaranteed output voltage tolerance of ±2%.

Does the L7805AC-D2TR require external components for basic regulation?

No external components are required for basic fixed voltage regulation; it includes internal protections.