AZ78L05RTR-E1

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AZ78L05RTR-E1 Application Field and Working Principle

AZ78L05RTR-E1 is an adjustable 1A positive regulator designed by AZ Microelectronics. It comes in a low profile surface mount SOT-223 3-pins package. The device is designed to offer low noise and low dropout voltage in various systems, and is particularly suitable for wireless communication applications, video systems, and other power sensitive applications.

The AZ78L05RTR-E1 is an adjustable version of the three terminal, 1A series voltage regulator which has an output voltage that can be externally set between 2.0V and 16V. The device utilizes an internal resistive voltage divider to set the output voltage. The device also includes thermal shutdown to protect against temperatures increasing beyond its operational specifications. This makes it ideal for power sensitive applications where high efficiency is important.

To understand the working principle of AZ78L05RTR-E1, we can consider how the voltage regulator component works. The device takes in an input voltage (VDD) through the VIN pin, and its job is to regulate the voltage at the output pin (VOUT) to the desired voltage level. Internally, the voltage regulator component is composed of an error amplifier, a reference voltage, a comparator and an output stage. The error amplifier’s inputs are the output voltage at VOUT and the reference voltage. The output of the error amplifier is connected to the input of the comparator, which compares the error voltage to the voltage at the balance point. If the output voltage is lower than the reference voltage, the comparator will output a low signal which tells the output stage to increase the output voltage. Conversely, if the output voltage is higher than the reference voltage, the comparator will output a high signal and the output stage will decrease the output voltage.

The AZ78L05RTR-E1 device is capable of providing 1A continuous output current. The device comes with several features, as mentioned above, such as an adjustable output voltage between 2V and 16V, low dropout voltage, low noise and an over temperature protection. The device can also be used in conjunction with other components and systems to improve system performance.

In summary, the AZ78L05RTR-E1 is an adjustable three terminal, 1A series voltage regulator offering low noise and low dropout voltage. The device comes with adjustable output voltage from 2V to 16V and several features such as over temperature protection. It is ideal for use in power sensitive applications, as high efficiency is important. The regulator works on the internal resistive voltage divider principle where the output voltage is regulated using an error amplifier and comparator.

Tag: PMIC - Voltage Regulators - LinearThe specific data is subject to PDF, and the above content is for reference