ADP166AUJZ-3.0-R7

Current - Output:	150mA
Base Part Number:	ADP166
Supplier Device Package:	TSOT-5
Package / Case:	SOT-23-5 Thin, TSOT-23-5
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	6.2µA
Current - Quiescent (Iq):	2.4µA
Series:	--
Voltage Dropout (Max):	0.225V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ADP166AUJZ-3.0-R7 Application Field and Working Principle

PMIC (Power Management Integrated Circuits) Voltage Regulators - Linear are a type of voltage regulator that uses a linear regulator topology to control voltage output. The Linear regulators limit the maximum output current and provide a stable output voltage. ADP166AUJZ-3.0-R7 is a Low-Drop Out(LDO) Linear Regulator that offers a solution for automatically regulating the supply voltage based on an external reference voltage.

Specifications

ADP166AUJZ-3.0-R7 is a low-dropout linear voltage regulator with an output voltage of 3.0V. It is a fixed-output, low-dropout linear regulator that is well suited for quantity-sensitive applications. Key specifications for the ADP166AUJZ-3.0-R7 include:• Dropout voltage: 0.4V Typ.• Maximum input voltage: 5.5V• Quiescent current: 0.12mA(Typ)• Operating temperature: -40°C to +85°C• Output voltage accuracy: ±2%

Application Fields

ADP166AUJZ-3.0-R7 is ideal for applications requiring low quiescent current and low drop-out voltage. It can be used in portable electronic devices where battery lifetime is important. It is an ideal solution for low current applications such as consumer electronics products, portable medical device, automotive, and RF products.

Working Principle

The ADP166AUJZ-3.0-R7 is designed so that a voltage drop, caused by the current flow through the external resistor connected to the PWREN pin, causes a feedback voltage to the LDO, shutting off the output voltage. This feedback voltage turns off the LDO. In normal operation, a voltage from an external reference source is applied to the PWREN pin and to the reference pin (REF). The REF pin provides the reference voltage for the ADP166AUJZ-3.0-R7, which is a fraction of the voltage applied to the PWREN pin. This voltage is then compared to the voltage on the output of the LDO. If the output voltage is below the reference voltage, the LDO can increase the voltage on the output by increasing the current and therefore, the output voltage. The current that the LDO can provide is determined by the selection of the external resistor on the PWREN pin and the reference voltage applied to the REF pin. If the output of the LDO is higher than the reference voltage, the LDO decreases the output voltage by decreasing the current. The current that the LDO can provide is determined by the selection of the external resistor on the PWREN pin and the reference voltage applied to the REF pin. The ADP166AUJZ-3.0-R7 also includes temperature protection circuitry. This circuitry prevents the regulator from increasing the output voltage beyond the reference voltage due to temperature variations. If the output voltage becomes too high due to the temperature, the regulator output is temporarily disabled by the protection circuitry to prevent over-voltage damage.

Conclusion

The ADP166AUJZ-3.0-R7 is a low-dropout linear voltage regulator that is well-suited for a variety of applications requiring a low dropout voltage and low quiescent current. It is a low-cost and reliable solution for automatically regulating the supply voltage based on an external reference voltage. The operating temperature range of -40°C to +85°C makes it an ideal solution for the automotive, consumer electronics, and RF products, as well as low current portable medical applications.

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