STMicroelectronics

L7915CP

L7915CP Description

The L7915CP from STMicroelectronics is a fixed negative voltage regulator designed to deliver a stable -15V output at up to 1.5A of continuous current. Housed in a TO-220FP package, this through-hole-mount IC is engineered for robust performance in demanding environments, with an operating temperature range of 0°C to 125°C. It features low dropout voltage (1.1V typical at 1A) and a quiescent current of just 3 mA, ensuring efficient power management. The device incorporates over-temperature and short-circuit protection, enhancing reliability in fault conditions. With a PSRR of 60dB at 120Hz, it excels in noise-sensitive applications.

L7915CP Features

• Output Voltage: Fixed -15V with 1.5A current capability.
• Low Dropout: 1.1V (typical) at 1A, minimizing power dissipation.
• High PSRR: 60dB at 120Hz for superior noise rejection.
• Protection Mechanisms: Over-temperature and short-circuit safeguards.
• Wide Operating Range: 0°C to 125°C, suitable for industrial use.
• Low Quiescent Current: 3 mA, optimizing efficiency in standby modes.
• Compliance: ROHS3 and REACH compliant, meeting environmental standards.

L7915CP Applications

The L7915CP is ideal for power supply designs requiring stable negative voltage rails, such as:

• Industrial Control Systems: Powering analog circuits, sensors, and op-amps.
• Audio Equipment: Delivering clean negative bias for amplifiers and mixers.
• Test & Measurement Instruments: Ensuring precision voltage references.
• Automotive Electronics: Supporting infotainment and control modules.
• Retrofit Power Supplies: Replacing older linear regulators for improved efficiency.

Conclusion of L7915CP

The L7915CP stands out as a high-performance, reliable negative voltage regulator with low dropout, robust protection, and excellent noise immunity. Its 1.5A output current and wide temperature range make it a versatile choice for industrial, automotive, and consumer applications. Compared to similar models, its TO-220FP package offers superior thermal dissipation, while its compliance with modern environmental standards ensures future-proof designs. For engineers seeking a cost-effective, high-quality negative regulator, the L7915CP delivers exceptional value and performance.