Texas Instruments

MC79L12ACD

MC79L12ACD Description

The MC79L12ACD from Texas Instruments is a fixed-output negative voltage regulator designed to deliver a stable -12V output with a maximum current of 100mA. Housed in an 8-SOIC surface-mount package, this linear regulator is optimized for compact and efficient power management in low-current applications. It features a low dropout voltage of 1.7V (max) at 40mA, ensuring reliable performance even with marginal input voltage headroom. With an operating temperature range of 0°C to 125°C, it is suitable for industrial and automotive environments. The device complies with RoHS3 and REACH standards, making it environmentally friendly.

MC79L12ACD Features

• Fixed -12V Output: Ensures precise voltage regulation without external adjustments.
• Low Dropout Voltage: 1.7V (max) at 40mA, enhancing efficiency in low-input scenarios.
• High PSRR (42dB at 120Hz): Minimizes noise and ripple for cleaner power delivery.
• Robust Protection: Includes over-temperature and short-circuit protection for enhanced reliability.
• Wide Operating Temperature Range (0°C to 125°C): Ideal for harsh environments.
• Surface-Mount Package (8-SOIC): Saves board space and simplifies assembly.
• RoHS3 & REACH Compliant: Meets stringent environmental regulations.

MC79L12ACD Applications

The MC79L12ACD is ideal for applications requiring stable negative voltage rails, such as:

• Analog and Mixed-Signal Circuits: Powering op-amps, sensors, and data converters.
• Industrial Control Systems: Reliable voltage regulation in PLCs and motor drives.
• Automotive Electronics: Suitable for infotainment and ECU power supplies.
• Portable Devices: Low-power battery-operated systems where space is critical.
• Test & Measurement Equipment: Precision voltage references and signal conditioning.

Conclusion of MC79L12ACD

The MC79L12ACD stands out as a compact, efficient, and reliable negative voltage regulator, offering low dropout, high PSRR, and robust protection features. Its wide operating temperature range and compliance with environmental standards make it a versatile choice for industrial, automotive, and portable applications. While it is currently in Last Time Buy status, its performance and durability ensure it remains a strong candidate for legacy and new designs requiring a stable -12V supply.