ADP172ACBZ-1.7-R7

Current - Output:	300mA
Base Part Number:	ADP172
Supplier Device Package:	4-WLCSP (0.95x1.03)
Package / Case:	4-UFBGA, WLCSP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
Control Features:	Enable
PSRR:	73dB ~ 47dB (1kHz ~ 100kHz)
Current - Supply (Max):	260nA
Current - Quiescent (Iq):	60µA
Series:	--
Voltage Dropout (Max):	0.1V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.7V
Voltage - Input (Max):	3.6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionThe ADP172ACBZ-1.7-R7 is a high efficiency, low noise, low quiescent current linear voltage regulator. It is suitable for many applications where a regulated voltage supply is required. This article will explore the application field and working principle of the ADP172ACBZ-1.7-R7.Application FieldThe ADP172ACBZ-1.7-R7 is suitable for many applications requiring reliable voltage regulation, including microcontrollers, data converters, advanced power management processors, and other devices that are sensitive to noise, current or voltage fluctuations. It is ideal for battery-operated systems and applications where minimum power consumption is required.FeaturesThe ADP172ACBZ-1.7-R7 offers significant advantages over traditional linear regulators, including:• Virtually no dropout voltage• Low noise voltage ripple• High efficiency operation (up to 95% efficiency)• Low quiescent current (as low as 3 µA)• Wide input voltage range (1.8 V to 5.5 V)• Low power consumption• Internal current limit protectionWorking PrincipleThe ADP172ACBZ-1.7-R7 is a linear voltage regulator, which means it utilizes a series circuit of two or more resistors connected in a line to control the voltage of the circuit. It works by regulating the output voltage according to the input voltage, and dissipating excess energy as heat.The ADP172ACBZ-1.7-R7 operates by comparing the voltage at its output to a reference voltage, which is a set voltage determined by its internal circuitry. The comparison is done using an op-amp, which is responsible for sensing the output voltage and adjusting the output voltage accordingly. When the output voltage is lower than the reference voltage, the op-amp adjusts the output to increase the voltage until the desired output is achieved. Likewise, when the output voltage is higher than the reference voltage, the op-amp adjusts the output to decrease the voltage until the desired output is reached.The ADP172ACBZ-1.7-R7 also has a feature which allows the regulator to operate under no-load conditions, meaning it can continue to regulate the output voltage with no current being passed, preventing any potential damage to the device.ConclusionThe ADP172ACBZ-1.7-R7 is a linear voltage regulator, suitable for many applications. It offers advantages such as low dropout voltage, low noise voltage ripple, high efficiency, and low quiescent current. The working principle of the ADP172ACBZ-1.7-R7 involves the comparison of the output voltage to the reference voltage using an op-amp, which then provides the necessary regulation.

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