STMicroelectronics

L7805ABD2T

L7805ABD2T Description

The L7805ABD2T from STMicroelectronics is a fixed-output linear voltage regulator designed to deliver a stable 5V output at up to 1.5A of continuous current. Housed in a robust D2PAK (TO-263) surface-mount package, this regulator is engineered for high-efficiency power management in demanding applications. With an input voltage range extending up to 35V, it offers a low dropout voltage of 2V (typical at 1A), ensuring reliable performance even under fluctuating input conditions. The device features over-temperature and short-circuit protection, enhancing system durability. Although marked as obsolete, it remains a dependable choice for legacy designs, complying with ROHS3 and REACH environmental standards.

L7805ABD2T Features

• Fixed 5V Output: Precision-regulated voltage for stable power delivery.
• High Current Capacity: Supports 1.5A output with 6mA quiescent current, optimizing efficiency.
• Wide Input Range: Operates up to 35V, accommodating diverse power sources.
• Robust Protection: Integrated thermal shutdown and short-circuit protection for enhanced reliability.
• Low Dropout: 2V dropout (typical at 1A) minimizes power loss.
• High PSRR: 68dB at 120Hz ensures excellent noise suppression.
• D2PAK Package: Suitable for high-power surface-mount applications with superior thermal dissipation.

L7805ABD2T Applications

• Industrial Control Systems: Powering microcontrollers, sensors, and actuators in harsh environments.
• Automotive Electronics: Voltage regulation for infotainment and onboard diagnostics (OBD).
• Consumer Electronics: Stable 5V supply for routers, set-top boxes, and audio equipment.
• Embedded Systems: Reliable power management for single-board computers (SBCs) and IoT devices.
• Legacy Designs: Suitable for maintaining or upgrading older systems requiring a proven 5V regulator.

Conclusion of L7805ABD2T

The L7805ABD2T is a high-performance linear regulator offering precision, durability, and ease of integration in space-constrained designs. Its high current capability, wide input range, and robust protection make it ideal for industrial, automotive, and consumer applications. While obsolete, its proven reliability ensures continued relevance in legacy and maintenance projects. For engineers seeking a cost-effective, thermally efficient 5V regulator, the L7805ABD2T remains a compelling choice.