ADP166ACBZ-2.85-R7

Current - Output:	150mA
Base Part Number:	ADP166
Supplier Device Package:	4-WLCSP (0.97x0.97)
Package / Case:	4-UFBGA, WLCSP
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):	2.85V
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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Introduction

ADP166ACBZ-2.85-R7 is a linear voltage regulator manufactured by Diodes Incorporated. This device is a PMIC (Power Management IC) used for regulating voltages. It is a cost-efficient, reliable and easily-configurable voltage regulator; perfect for low-power applications.

Application Field

The ADP166ACBZ-2.85-R7 operates from an input voltage between 2.7V and 8.2V. It is designed to produce output voltages of 2.85V with a maximum current capacity of 1.5A. This device is especially suitable for products that require a low-cost voltage regulator with a wide input voltage bandwidth, small footprint, and high accuracy. It is also ideal for applications in automotive, communication systems, computing, and industrial control devices.

Design

The ADP166ACBZ-2.85-R7 voltage regulator comes in an SO-8 package with eight pins. The maximum power dissipated from this device is 4.9W, which continues to decrease even when the device tends to get hot, limiting the difference between input and output voltage. It is an ultra-small surface-mount package, providing a stable 2.85V output voltage with 1.5A current capacity. Furthermore, it also has an integrated thermal protection circuit that prevents the output voltage from exceeding the specified level. This circuit also prevents short-circuit conditions to ensure safety and reliability of the device.

Features and Benefits

The ADP166ACBZ-2.85-R7 offers several features beneficial to its users. It features a wide power supply range, low operating temperature, and extensive voltage regulation range making it suitable for a variety of applications. Additionally, it has low start-up current, low dropout voltage, and low leakage current that enables the device to remain efficient and stable under various conditions. Moreover, it has an integrated over-temperature alarm and power-good indicator that provide users with additional safety.

Working Principle

At the heart of the ADP166ACBZ-2.85-R7 linear voltage regulator is a bandgap voltage reference that enables voltage regulation. This voltage reference is generated by bandgap semiconductors which are used to compare the reference voltage to the input voltage. When the input voltage drops or rises, the reference voltage will rise or fall accordingly. This reference voltage is then compared to the voltage on the non-inverting input of the op-amp circuit, allowing it to adjust the output voltage to the desired level. Furthermore, an over-power protection circuit is integrated to protect the device in case of excessive power input.

Conclusion

The ADP166ACBZ-2.85-R7 linear voltage regulator is a reliable, cost-efficient and easily-configured PMIC for low-power applications. It has a wide input voltage range, low power dissipation, and high voltage accuracy, which make it suitable for automotive, communication systems, computing, and industrial control devices. Moreover, it has several safety features, such as the integrated over-temperature alarm and power-good indicator. It works by using a bandgap voltage reference generated by semiconductors, to compare the input voltage with the reference voltage, thus producing the desired output voltage.

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