AZ1117H-ADJTRG1

PMIC – Voltage Regulators – Linear

The AZ1117H-ADJTRG1 is a low dropout (LDO) three-terminal linear regulator with an adjustable output voltage. It is designed for low power and high current applications. It is capable of providing up to 500mA of output current and can-work with a 5V input voltage. The output voltage of the regulator can be adjusted between 2.5V and 16V.

Applications

The AZ1117H-ADJTRG1 has a wide range of applications, such as:

• Power supply for high-speed processors, DSPs and FPGAs
• Computer and communication application
• LCD monitor power supply
• Audio amplifier
• Car applications
• Portable devices
• GPS and Bluetooth

Working Principle

The AZ1117H-ADJTRG1 operates by using a fixed operating current to regulate the output voltage. The operating current flows through the regulating element and provides a precise reference voltage to the output of the regulator. The reference voltage is compared to the feedback voltage. The feedback voltage is determined by the output voltage divided by two resistors. If the feedback voltage is equal to the reference voltage the output voltage is regulated. When the output voltage deviates from the regulated voltage, the regulating element draws in additional current until the output voltage is brought back to the regulated voltage. This additional current flows through the load it is supplying, resulting in a regulated output voltage. The AZ1117H-ADJTRG1 has an internally fixed linear voltage drop, eliminating external components.

Features

The AZ1117H-ADJTRG1 has several features, such as protection from over-current, over-voltage, reverse current and short circuit, that make it suitable for high-current applications. It also features a shutdown pin that allows the user to reduce the current consumption to a minimum. Additionally, the output voltage is adjustable with an external resistor, and it has a low minimum dropout voltage of 1V for a 5V input voltage.

Conclusion

The AZ1117H-ADJTRG1 is a three-terminal linear regulator with an adjustable output voltage. It is designed for low power and high current applications, and has a wide range of applications, such as power supplies for high-speed processors, computer, audio amplifiers and portable devices. It has a fixed operating current to regulate the output voltage, and features protection from over-current, over-voltage, reverse current and short circuit, and an adjustable output voltage. Additionally, it has a low minimum dropout voltage of 1V for a 5V input voltage.