STMicroelectronics

L7805ACD2T

L7805ACD2T Description

The L7805ACD2T from STMicroelectronics is a fixed 5V linear voltage regulator in a D2PAK (TO-263) surface-mount package, designed to deliver a stable 1.5A output current with an input voltage range up to 35V. This obsolete but robust regulator features low dropout voltage (2V typical at 1A) and high PSRR (68dB at 120Hz), ensuring reliable performance in noisy environments. It operates within a wide temperature range (0°C to 125°C), making it suitable for industrial and automotive applications. The device includes over-temperature and short-circuit protection, enhancing system durability.

L7805ACD2T Features

• Fixed 5V Output: Precision-regulated voltage for consistent power delivery.
• High Current Capability: Supports up to 1.5A with 6mA quiescent current.
• Thermal & Short-Circuit Protection: Safeguards against overloads and overheating.
• Low Dropout Voltage: 2V max at 1A minimizes power dissipation.
• High PSRR (68dB): Effective noise suppression for sensitive circuits.
• Wide Operating Temperature: Reliable performance in harsh conditions (0°C to 125°C).
• RoHS3 & REACH Compliant: Meets environmental and safety standards.

L7805ACD2T Applications

• Power Supplies: Ideal for 5V rail regulation in industrial, consumer, and automotive systems.
• Embedded Systems: Provides stable voltage for microcontrollers, sensors, and logic circuits.
• Automotive Electronics: Suitable for infotainment, ECUs, and lighting systems due to its rugged design.
• Noise-Sensitive Devices: High PSRR benefits audio amplifiers, ADCs, and communication modules.
• Legacy Equipment Maintenance: A reliable choice for repairing or upgrading older systems.

Conclusion of L7805ACD2T

The L7805ACD2T is a high-performance linear regulator offering precision, durability, and protection features, despite its obsolete status. Its 1.5A output, low dropout, and robust thermal management make it a preferred choice for demanding applications. While newer alternatives exist, this regulator remains a trusted solution for industrial, automotive, and legacy systems requiring reliable 5V power. Engineers value its simplicity, efficiency, and compliance with environmental standards, ensuring long-term viability in critical designs.