onsemi

MC79L18ACPG

MC79L18ACPG Description

The MC79L18ACPG from onsemi is a fixed negative voltage regulator designed to deliver a stable -18V output with a maximum current of 100mA. Housed in a TO-92-3 package, this linear regulator is ideal for low-power applications requiring precise voltage regulation. It operates over a wide temperature range of 0°C to 125°C, ensuring reliability in harsh environments. With a low dropout voltage of 1.7V (typical at 40mA) and 48dB PSRR at 120Hz, it excels in noise-sensitive circuits. The device includes over-temperature and short-circuit protection, enhancing system durability.

MC79L18ACPG Features

• Fixed -18V Output: Ensures consistent voltage regulation for negative rail applications.
• High PSRR (48dB): Minimizes ripple and noise, making it suitable for analog and precision circuits.
• Robust Protection: Built-in over-temperature and short-circuit safeguards prevent damage under fault conditions.
• Low Dropout Voltage (1.7V): Efficiently regulates voltage even with small input-output differentials.
• Wide Operating Temperature (0°C to 125°C): Reliable performance in industrial and automotive environments.
• TO-92-3 Package: Compact and easy to integrate into through-hole designs.
• RoHS3 Compliant & REACH Unaffected: Meets environmental and safety standards.

MC79L18ACPG Applications

• Power Supplies: Ideal for negative voltage rails in dual-supply systems.
• Audio Equipment: Low-noise regulation for amplifiers and preamps.
• Industrial Controls: Stable voltage for sensors, actuators, and control circuits.
• Test & Measurement: Precision voltage reference in lab instruments.
• Automotive Electronics: Suitable for on-board systems due to wide temperature tolerance.

Conclusion of MC79L18ACPG

The MC79L18ACPG is a high-performance, cost-effective solution for applications demanding stable negative voltage regulation. Its low dropout, high PSRR, and robust protection make it superior to generic regulators, particularly in noise-sensitive or thermally challenging environments. Whether used in audio, industrial, or automotive systems, this regulator delivers reliability and precision, backed by onsemi's quality assurance.