UA78L05AIDRE4

Introduction to the UA78L05AIDRE4

The UA78L05AIDRE4 is a Microsemi Corporation’s very low dropout linear voltage regulator. It is a great voltage regulator solution for applications needing a very low dropout voltage regulator with low noise and EMI. It provides a stable output voltage and low ground current up to a maximum of 500mA.

Application Fields

The UA78L05AIDRE4 is ideal for applications such as powering and stabilizing analog and digital circuits that require precise control of output voltage and current, as well as a low dropout voltage. It is also suitable for digital communication applications and devices that require low noise and low EMI. Regulating applications in notebook computers, personal digital assistants (PDAs), battery-operated systems, medical instrumentation, and remote wireless systems.

Working Principle

The UA78L05AIDRE4 is a linear voltage regulator, which means it does not use switching components or feedback loops. Instead, it relies on an internal voltage reference, which is used to set the correct output voltage. The reference voltage is compared to an external voltage, which is connected to the regulator\'s feedback pin. If the external voltage is higher than the reference, the regulator decreases its output current. If the external voltage is lower than the reference, the regulator increases its output current. Thus, no matter what the input voltage is, the regulator maintains the same output voltage.

The UA78L05AIDRE4 can be used with a range of input voltages, from 2.8V to 8V and an adjustable output voltage of 0.5V to 6V. It has an ultra-low dropout voltage of 0.3V typ. at full load and an operating temperature range from 0°C to 70°C. It also offers a wide range of protection features such as over temperature, over voltage and current limit protection.

Conclusion

The UA78L05AIDRE4 is a great low dropout voltage regulator solution for applications requiring low noise and EMI. It is suitable for a wide range of applications, including powering and stabilizing digital and analog circuits, digital communication applications, notebook computers and remote wireless systems. It offers a wide range of protection features and adjustable output voltage, making it the ideal voltage regulator solution.