onsemi

MC7824CT

MC7824CT Description

The MC7824CT from onsemi is a fixed-output 24V, 1A linear voltage regulator designed for robust power management in demanding electronic systems. Housed in a TO-220AB package, this obsolete but reliable component offers stable voltage regulation with a wide input range of up to 40V, making it suitable for industrial and automotive applications. Its 2V typical dropout voltage at full load ensures efficient operation, while built-in over-temperature and short-circuit protection enhances system reliability. With a quiescent current of 6.5 mA and 61dB PSRR (120Hz), it minimizes noise and power dissipation, ideal for precision analog and digital circuits.

MC7824CT Features

• Fixed 24V Output: Ensures consistent voltage regulation for downstream components.
• High Input Voltage (40V Max): Accommodates fluctuating input sources.
• 1A Output Current: Supports moderate power loads without external pass transistors.
• Low Dropout (2V @ 1A): Optimizes efficiency in high-current scenarios.
• Protection Mechanisms: Includes thermal shutdown and short-circuit safeguards.
• Wide Operating Temperature (0°C to 125°C): Suited for harsh environments.
• 61dB PSRR: Excellent noise suppression for sensitive applications.

MC7824CT Applications

The MC7824CT excels in systems requiring stable, high-voltage power rails, such as:

• Industrial Control Systems: Powering PLCs, motor drivers, and instrumentation.
• Automotive Electronics: Voltage regulation for infotainment and ECU modules.
• Test & Measurement Equipment: Delivering clean power to precision analog circuits.
• Legacy Equipment Maintenance: Replacing obsolete regulators in existing designs.

Conclusion of MC7824CT

Though marked obsolete, the MC7824CT remains a dependable choice for engineers needing a 24V linear regulator with robust protection and wide input tolerance. Its TO-220AB package simplifies heatsinking, while its high PSRR and low dropout make it superior to basic regulators in noise-sensitive applications. For legacy systems or cost-sensitive designs, this component offers a balance of performance and durability.