MC78L08ACD

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A voltage regulator is an important component used in many electronic products. The MC78L08ACD is an example of a linear voltage regulator, which is used to generate a precisely regulated output voltage. In this article, we will discuss the application fields, working principle and features of the MC78L08ACD

Application Field

The MC78L08ACD is a three pin linear voltage regulator designed for positive voltage applications. It offers an efficient and cost-effective solution for noise and electrical interference reduction. The product is ideal for low-power on-board application which require precise and stable voltage outputs ranging from 1.5V to 9V. Some common application fields of the MC78L08ACD include but not limited to:

• Battery powered systems
• Automotive electronics
• Data loggers
• Data acquisition systems
• Power supply modules
• Portable consumer electronics

Working Principle

The MC78L08ACD is an example of a three pin linear voltage regulator in which an input voltage is applied to the input pin and a precisely regulated output voltage is generated at the output pin. The voltage regulator works on the basic principle of controlling the input voltage and regulating it to provide a desired output voltage based on the resistance in the feedback loop.

In the MC78L08ACD voltage regulator, the output voltage is regulated by a feedback network consisting of resistors and a zener diode. As the input voltage increases, the voltage across the zener diode increases and the resulting current flows into the base of the pass transistor. This increases the current flow and the voltage drop across the resistor. The resulting voltage at the output is precisely regulated. The MC78L08ACD also has an internal current limiting and thermal protection circuit that helps protect the voltage regulator from damage due to overload or excessive heat.

Features

The MC78L08ACD is a low-voltage, three-pin voltage regulator with a wide range of features and advantages. These include:

• Wide input voltage range C 10V to 35V
• Output voltage range of 1.5V to 9V
• Output current of up to 100 mA
• Ripple rejection rate of 60 dB
• Operating temperature range of -40°C to +145°C
• Low dropout voltage
• Internal current limiting and thermal protection
• Surge immunity of up to 1000V
• Small size enabling high-density circuit design
• No external components required for operation

The MC78L08ACD is a highly reliable and efficient regulator with a wide range of applications. It is designed for high accuracy and precision voltage regulation, making it the ideal choice for low-power applications requiring precise and regulated voltage outputs.

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