ON Semiconductor MCW7905C Negative Voltage Regulator

The ON Semiconductor MCW7905C is a highly reliable, 3-terminal, negative voltage regulator designed to deliver a fixed output voltage of -5V. This integrated circuit is a staple in a wide range of electronic applications, from consumer electronics to industrial systems, where a stable negative voltage rail is essential for circuit operation.

The MCW7905C is capable of sourcing up to 1A of output current with a dropout voltage of typically 2V at full load, which makes it suitable for various applications that require moderate power consumption. Its robust design includes thermal overload protection and short-circuit protection features, ensuring the safety and longevity of both the regulator and the electronic components it serves.

This negative voltage regulator is designed with ease of use in mind, requiring only two external capacitors for stability, making it an ideal choice for quick and straightforward circuit designs. The input capacitor improves transient response, while the output capacitor enhances stability and helps reduce output noise, a critical factor in sensitive analog circuits and precision applications.

The MCW7905C comes in a compact TO-220 package, which is widely preferred for its ability to dissipate heat effectively. This makes the regulator well-suited for applications where space is at a premium but thermal performance cannot be compromised.

Key features of the MCW7905C include:

• Fixed Output Voltage: -5V
• Output Current: Up to 1A
• Thermal Overload Protection
• Short-Circuit Protection
• Low Dropout Voltage: Typically 2V at full load
• Minimum External Components Required
• TO-220 Package for Effective Heat Dissipation

Whether you're designing power supplies, building audio equipment, or setting up an automated system that requires a reliable negative power rail, the ON Semiconductor MCW7905C offers the performance and durability needed for your application. Its combination of protection features, ease of use, and thermal efficiency makes it an excellent choice for designers looking for a dependable negative voltage regulator.