AZ1084D-ADJTRE1

Introduction

The AZ1084D-ADJTRE1 is an adjustable voltage regulator integrated circuit (IC) for linear voltage regulation applications. The device is a CMOS-based, low-dropout (LDO) voltage regulator featuring extremely low quiescent current and fast transient response. It is designed to provide a regulated output voltage of 5.0V with an input range of 2.3V to 17.5V and a maximum output current of up to 1.5A. This IC is intended for use in a wide range of applications that require high accuracy, low noise, and low quiescent current.

Features

• Input voltage range of 2.3V-17.5V
• Low quiescent current: Typ. 0.4mA @ 5V Output
• Adjustable output voltage: 5.0V ± 10%
• Output voltage transient noise: 1.0mVpp typ.
• Low dropout (LDO): 0.4V typ. @ 1.0A
• Dropout current: 0.1A typ.
• Reverse current protection
• Thermal shutdown protection
• Output current limit: 1.0A

Application Field

The AZ1084D-ADJTRE1 is suitable for a wide range of applications including powering low-noise, analog circuits such as power amplifiers, signal processors, signal generators, A/D & D/A converters, as well as LED lighting and automotive applications. It can also be used as an adjustable 5V power supply for different microcontrollers, FPGAs, and other logic circuits.

Working Principle

As a linear voltage regulator, the AZ1084D-ADJTRE1 works in such a way that the output is always equal to a predetermined reference voltage, Vref. The difference between the input and output is equal to the voltage drop of the device, VDROP. To maintain Vref, the device adjusts the current through the pass transistor in order to offset any variations in the supply voltage and load current. The voltage drop, VDROP, is proportional to the load current, thus the voltage at the output remains constant regardless of load variations.

Conclusion

The AZ1084D-ADJTRE1 is an adjustable linear voltage regulator IC, designed to provide a regulated output voltage of 5.0V with an input range of 2.3V to 17.5V and a maximum output current of up to 1.5A. With its low quiescent current and fast transient response, it is suitable for many precision analog and digital applications. This device is ideal for powering low-noise and low-dropout applications, enabling designers to achieve excellent performance and better utilization of power.