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MC7815ACT

MC7815ACT Description

The MC7815ACT from onsemi is a fixed-output positive linear voltage regulator designed to deliver a stable 15V output with a maximum current capacity of 1A. This through-hole (TO-220AB) device operates within an input voltage range up to 35V, making it suitable for a variety of power supply applications. With a typical dropout voltage of 2V @ 1A, it ensures efficient regulation even under high load conditions. The regulator features built-in protection against over-temperature and short-circuit events, enhancing system reliability. Its 80dB PSRR (120Hz) minimizes noise, making it ideal for sensitive analog and digital circuits.

MC7815ACT Features

• Fixed 15V Output: Ensures precise voltage regulation without external adjustments.
• High Input Voltage Tolerance (35V): Accommodates wide input variations.
• 1A Output Current: Supports moderate power requirements.
• Low Dropout Voltage (2V @ 1A): Optimizes efficiency in high-load scenarios.
• Robust Protection: Includes over-temperature shutdown and short-circuit protection.
• Excellent Noise Suppression: 80dB PSRR at 120Hz reduces ripple in sensitive applications.
• Wide Operating Temperature Range (0°C to 125°C): Suitable for industrial environments.
• Through-Hole (TO-220AB) Package: Facilitates easy mounting and heat dissipation.

MC7815ACT Applications

The MC7815ACT is ideal for applications requiring stable, noise-free 15V power, such as:

• Industrial Control Systems: Powering sensors, actuators, and control logic.
• Consumer Electronics: Voltage regulation in audio amplifiers, set-top boxes, and displays.
• Automotive Electronics: Supporting infotainment and dashboard systems (within temperature limits).
• Test & Measurement Equipment: Providing clean power for precision analog circuits.
• Embedded Systems: Reliable voltage regulation for microcontrollers and peripherals.

Conclusion of MC7815ACT

The MC7815ACT stands out as a reliable, high-performance linear regulator with robust protection features and excellent noise rejection. Its 1A output current, wide input range, and thermal resilience make it a versatile choice for demanding applications. While marked as obsolete, its proven design and onsemi's legacy of quality ensure continued suitability for legacy systems or designs prioritizing stability over advanced features. For engineers seeking a no-frills, dependable 15V regulator, the MC7815ACT remains a compelling option.