AZ1117H-1.8TRG1

Voltage Dropout (Max):	1.25V @ 1A
Supplier Device Package:	SOT-223
Package / Case:	TO-261-4, TO-261AA
Mounting Type:	Surface Mount
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):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	15V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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AZ1117H-1.8TRG1 Application Field and Working PrincipleThe AZ1117H-1.8TRG1 (or just AZ1117H) is a low-dropout linear voltage regulator that operates from 2.5V to 15V. It is designed to provide constant voltage power to typical low-power applications in both commercial and industrial environments. It is used in a wide range of applications, from consumer electronics to industrial control systems. The AZ1117H is an excellent low-cost solution for low-voltage power supplies with low output ripple.OverviewThe AZ1117H is a low-dropout voltage regulator that has a wide input voltage range of 2.5V to 15V. It is available in fixed output voltages of 1.8V, 3.3V, 5V, 7.5V, 8V, 9V, 10V and 12V with a maximum output current of up to 500mA. The AZ1117H has a large input-to-output differential of 1.45V at 500 mA, so it can provide stable, low-dropout power to a wide range of applications. The device has on-chip protection against over-voltage, under-voltage, over-temperature, and short-circuit conditions. The AZ1117H is available in the US8 package, which is a small, 8-pin surface-mount device.Application FieldThe AZ1117H is designed to be used in a wide range of applications, including consumer electronics, Telecom/Networking equipment, and industrial control systems. It can provide regulated output power over a wide range of input voltage, making it an ideal choice for low-power applications. The integrated chip protection feature makes it ideal for applications with high temperature, over-voltage, and short-circuit stress. The device also has low output ripple, making it suitable for applications requiring low noise power.Working PrincipleThe AZ1117H is a low-dropout linear voltage regulator. The device uses a band gap voltage reference to provide a constant output voltage independent of the varying input voltage. It is a self-contained, three-terminal integrated circuit, and requires only an input voltage, which can be higher than, equal to, or lower than the desired voltage output. The AZ1117H has an internal current limit to protect the device and the load against short circuit conditions.The device has an input impedance of approximately 1kΩ in series with the output voltage, which ensures a minimum load current of at least 10mA. The device requires a minimum input voltage of approximately 1.5V greater than the output voltage and can provide an output current of up to 500mA.The device also has an on-chip thermal shutdown circuit that protects it from overheating, and an on-chip over-voltage protection circuit that inhibits current flow when the output voltage exceeds the device’s maximum rating.ConclusionThe AZ1117H is an excellent low-cost solution for low-voltage power supplies with low output ripple and high-temperature stress. It is used in a wide range of applications, from consumer electronics to industrial control systems. It has a wide input voltage range of 2.5V to 15V and is available in fixed output voltages of 1.8V, 3.3V, 5V, 7.5V, 8V, 9V, 10V and 12V with a maximum output current of up to 500mA. The AZ1117H has on-chip protection against over-voltage, under-voltage, over-temperature, and short-circuit conditions, making it the ideal choice for applications with high temperature, over-voltage and short-circuit stress.

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