AZ1117T-ADJE1

Voltage Dropout (Max):	1.25V @ 1A
Supplier Device Package:	TO-220-3
Package / Case:	TO-220-3
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C (TJ)
Protection Features:	Thermal Shutdown
Control Features:	--
PSRR:	75dB (120Hz)
Current - Quiescent (Iq):	10mA
Current - Output:	1A
Series:	AZ1117
Voltage - Output (Max):	13.75V
Voltage - Output (Min/Fixed):	1.25V
Voltage - Input (Max):	15V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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Introduction

The AZ1117T-ADJE1 is a low dropout, low noise, adjustable voltage CMOS linear voltage regulator. It is designed to provide constant voltage and current up to 1.5A (150mA typical) over an extended temperature range. The output voltage can be adjusted from 1.25V to 15V, providing manufacturers with a wide range of versatile voltage sources. The device includes under-voltage lockout, current limit protection and thermal Shutdown, making it a safe and reliable solution for many applications requiring DC/DC conversion.

Application Field

The AZ1117T-ADJE1 is suitable for use in a variety of applications such as power supply sequencing, power conditioning, audio/video systems, portable, automotive and instrumentation systems. It features low quiescent current, high efficiency, fast transient response and they also support high output current up to 1.5A (150mA typical).This regulator can be used to provide a wide range of voltages from 1.25V to 15V, making it ideal for applications such as powering a microcontroller. It can also be used to power low noise circuits or power sensitive analog or digital circuits. Additionally, the device has low dropout characteristics and is able to maintain regulation for input to output variations of a few millivolts.The device is also suitable for applications operating from a single cell Li-ion battery by providing low quiescent current and high efficiency. It is a robust and reliable solution for applications such as industrial process control, medical equipment, and many embedded systems.

Working Principle

The AZ1117T-ADJE1 operates on the basic principle of a voltage regulator, which is to maintain a steady output voltage despite any fluctuations in the input voltage or load.The device features an internal feedback network, which uses a voltage reference (1.25V to 15V) and an error amplifier to compare the output voltage with the desired voltage setting. The error amplifier then takes the difference between the two and produces a control signal to the transistor switch, which adjusts itself to maintain the output voltage at the desired level. In addition, the device includes an under-voltage lockout, current limit protection and thermal shutdown. The current limit protection limits the current draw from the input source, preventing the device from sourcing more current than its power limit. The thermal shutdown feature prevents the device from reaching an unsafe operating temperature, protecting it from damage.

Conclusion

The AZ1117T-ADJE1 is a low dropout, low noise, adjustable voltage CMOS linear voltage regulator. It is designed to provide a constant voltage and current up to 1.5A (150mA typical) over an extended temperature range. The output voltage can be adjusted from 1.25V to 15V, providing manufacturers with a wide range of versatile voltage sources. The device includes under-voltage lockout, current limit protection and thermal Shutdown which make it a safe and reliable solution for many applications requiring DC/DC conversion. The device features low quiescent current and high efficiency, making it an ideal choice for a variety of applications.

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