ONSEMI 78M05 TO-220 +5V Voltage Regulator, 500mA

The ONSEMI MC78M05CTG is a high-performance positive voltage regulator, offering reliable and stable +5V DC output for a wide range of electronic applications. This device is part of the popular 78xx series and is designed for local, on-card voltage regulation, providing a straightforward solution for power supply design where a clean, regulated voltage is critical.

Featuring a rugged three-terminal TO-220 package, this regulator integrates essential protection circuitry to ensure safe and durable operation. Internal current limiting prevents damage from excessive load currents, while internal thermal overload protection automatically shuts down the device if the junction temperature exceeds safe limits. Combined with output transistor safe-area compensation, these features make the regulator remarkably robust under most operating conditions, capable of delivering a maximum output current of 500mA with adequate heat sinking.

A significant advantage is that no external components are required for basic operation, simplifying circuit design and reducing component count. The regulator offers excellent noise performance with a low 40µV output noise voltage and a typical 2V dropout voltage at room temperature, ensuring efficient operation even when the input voltage is only marginally higher than the required output.

With an input voltage range of 10V to 35V, it is versatile for various power sources. Its through-hole TO-220 package ensures easy mounting and provides a thermal path for effective heat dissipation when used with a heatsink. This makes the MC78M05CTG a trusted choice for designers seeking a dependable, linear voltage regulation solution.