STMicroelectronics

L7815ABD2T

L7815ABD2T Description

The L7815ABD2T is a fixed-output positive voltage regulator from STMicroelectronics, designed to deliver a stable 15V output at up to 1.5A of continuous current. Housed in a robust D2PAK (TO-263) surface-mount package, this linear regulator is engineered for high-efficiency power management in demanding applications. With an input voltage range up to 35V and a low dropout voltage of 2V (typical at 1A), it ensures 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 reliable choice for legacy designs due to its proven performance and ROHS3 compliance.

L7815ABD2T Features

• Fixed 15V Output: Precision-regulated voltage for stable power delivery.
• High Current Capacity: Supports up to 1.5A output current.
• Wide Input Range: Operates with input voltages up to 35V.
• Low Dropout Voltage: 2V (typical) at 1A, minimizing power dissipation.
• Robust Protection: Integrated over-temperature and short-circuit safeguards.
• Low Quiescent Current: 6 mA typical, improving efficiency in standby modes.
• High PSRR: 58dB (120Hz), ensuring noise suppression for sensitive circuits.
• Surface-Mount D2PAK Package: Optimized for thermal performance and PCB space efficiency.

L7815ABD2T Applications

The L7815ABD2T is ideal for systems requiring a dependable 15V rail, including:

• Industrial Control Systems: Powering sensors, actuators, and control logic.
• Automotive Electronics: Voltage regulation for infotainment and auxiliary systems.
• Consumer Electronics: Stabilizing power for audio amplifiers and display modules.
• Telecommunications: Base station power supplies and signal conditioning circuits.
• Legacy Equipment Maintenance: Replacing obsolete regulators in existing designs.

Conclusion of L7815ABD2T

The L7815ABD2T combines high current capability, robust protection, and thermal efficiency in a compact package, making it a versatile solution for 15V power regulation. While newer alternatives may exist, its proven reliability and compliance with environmental standards (ROHS3) ensure continued suitability for industrial, automotive, and consumer applications. Engineers seeking a cost-effective, high-performance regulator for legacy or space-constrained designs will find this device a practical choice.