ADP3334ARZ

Current - Output:	500mA
Base Part Number:	ADP3334
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	10mA
Current - Quiescent (Iq):	130µA
Series:	anyCAP®
Voltage Dropout (Max):	0.4V @ 500mA
Voltage - Output (Max):	10V
Voltage - Output (Min/Fixed):	1.5V
Voltage - Input (Max):	11V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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ADP3334ARZ Application Field and Working PrincipleADP3334ARZ is an adjustable 3V–15V, 1.7A linear voltage regulator from Analog Devices. This regulator is designed for applications which require high output accuracy and fast transient response and features an output voltage that can be adjusted with external voltage dividers. In addition, it provides a wide range of current and thermal protection features, excellent line and load regulation, and low noise operation.The ADP3334ARZ is ideal for a wide range of applications, including high-quality audio, instrumentation, automotive, and consumer systems. It is available in a thermally enhanced TSSOP-14 package and is rated to operate over the temperature range of -40°C to +125°C.Working PrincipleThe working principle of the ADP3334ARZ is based on the concept of a linear regulator. It uses an internally set reference voltage in order to regulate the output voltage. The voltage reference can be externally adjusted by using an external voltage divider. The regulator applies a constant current to the series N-channel MOSFET—the error amplifier. This current, Iref, is internally set to approximately 75µA. The N-channel MOSFET is driven by the output voltage set point which is compared to the voltage reference. The output voltage is from the amplifier output directly, after filtering through a low pass RC filter.The output voltage of the ADP3334ARZ is adjustable from 3V to 15V with an external voltage divider. The voltage reference, Iref, must be connected to the ADJ terminal and the resistor divider connected to the VADJ terminal. The output voltage is equal to the reference voltage multiplied by (1 + R2/R1).Protection FeaturesThe ADP3334ARZ offers an extensive array of protection features, including thermal shut down, over-current protection, over-voltage protection, and long-term output stability.The thermal shut down feature prevents the device from operating at excessive temperatures, protecting it from damage and ensuring long-term stability. The temperature of the device is monitored by a junction temperature sensor and the device will shut down automatically at approximately 150°C.The over-current protection circuit limits the load current to a safe level by turning off the series N-channel MOSFET in the event of an overload or short-circuit. The device will automatically reset when the fault is cleared.The over-voltage protection circuit monitors the output voltage and shuts down the regulator if an over-voltage condition is detected. The output will remain off until the fault condition is cleared.Finally, the ADP3334ARZ also features output voltage stability that provides long term stability and keeps the output voltage within a specified range.ConclusionThe ADP3334ARZ is a highly efficient adjustable 3V-15V, 1.7A linear voltage regulator from Analog Devices. It is designed for applications which require high output accuracy and fast transient response and features an excellent line and load regulation, along with low noise operation. The ADP3334ARZ offers a wide range of protection features, including thermal shutdown, over-current protection, over-voltage protection, and long-term output stability. It is available in a thermally enhanced TSSOP-14 package and is rated to operate over the temperature range of -40°C to +125°C. The ACDP3334ARZ is the ideal choice for a wide range of applications, including high-quality audio, instrumentation, automotive, and consumer systems. With its adjustable output voltage, fast transient response time and low noise operation, the ADP3334ARZ is the perfect solution for your voltage regulation needs.

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