onsemi

MC7908ACTG

MC7908ACTG Description

The MC7908ACTG from onsemi is a fixed-output negative linear voltage regulator delivering -8V at 1A with high reliability. Designed for through-hole mounting (TO-220AB package), it features low dropout voltage (1.3V typical at 1A) and excellent 62dB PSRR (120Hz), ensuring stable performance in noisy environments. This obsolete but ROHS3-compliant regulator operates across a wide temperature range (0°C to 125°C) and includes over-current and over-temperature protection, making it suitable for rugged applications. Its REACH-unaffected status and MSL 1 (Unlimited) rating further enhance its usability in legacy or long-lifecycle designs.

MC7908ACTG Features

• Fixed -8V Output: Precision-regulated negative voltage for consistent performance.
• High Current Capacity: Supports up to 1A output current with minimal dropout.
• Robust Protection: Integrated over-current and over-temperature safeguards enhance reliability.
• Low Noise: 62dB PSRR at 120Hz reduces ripple in sensitive circuits.
• Wide Operating Range: Functions reliably from 0°C to 125°C, ideal for industrial environments.
• Through-Hole Design: TO-220AB package simplifies heat dissipation and mechanical integration.

MC7908ACTG Applications

This regulator excels in systems requiring stable negative voltage rails, such as:

• Industrial Power Supplies: For control systems and instrumentation.
• Audio Amplifiers: Providing clean negative bias voltages.
• Legacy Electronics: Maintenance or repair of older equipment with -8V requirements.
• Test & Measurement: Precision analog circuits where low noise is critical.
• Automotive Modules: Auxiliary power in non-critical, high-temperature environments.

Conclusion of MC7908ACTG

The MC7908ACTG is a robust, high-performance negative voltage regulator tailored for demanding applications. While obsolete, its combination of high current output, thermal resilience, and low-noise operation makes it a preferred choice for legacy designs or systems requiring reliable -8V rails. Engineers value its protection features and wide temperature tolerance, ensuring longevity in harsh conditions. For projects needing a proven, through-hole negative regulator, the MC7908ACTG remains a technically compelling option.