ADP2166ACPZ-3.3-R7

Voltage - Output (Min/Fixed):	3.3V
Base Part Number:	ADP2166
Supplier Device Package:	24-LFCSP-WQ (4x4)
Package / Case:	24-WFQFN Exposed Pad, CSP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	250kHz ~ 1.4MHz
Current - Output:	6A
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.7V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

ADP2166ACPZ-3.3-R7 is a DC-DC switching regulator that can output a steady 3.3V DC power from a single-ended input type power supply. This voltage regulator is available in a thermally enhanced SO-8 package and offers a high level of integration for a range of power-related applications. It has a wide variety of functions, including a low quiescent current, current limiting, an overtemperature protection (OTP) circuit, and frequency foldback-mode control. Additionally, with the use of a matched external MOSFET and inductor, this regulator can deliver up to 20A of continuous current.

Application field

The ADP2166ACPZ-3.3-R7 is an excellent choice for a wide variety of applications, including power management in laptops, gaming consoles, set-top boxes, products for the Internet of Things, wearables, and other consumer electronics products. It is also suitable for automotive applications that require a steady output voltage of 3.3V for microprocessors, sensors, and other related components.

Working principle

The ADP2166ACPZ-3.3-R7 is a linear regulator with pass elements consisting of N- and P-channel MOSFETs. It employs a voltage-mode control system and a fixed frequency PWM modulator to deliver a steady output voltage of 3.3V.The PWM modulator\'s switching frequency is set by an internal oscillator. This oscillator can be bypassed with an external clock signal to further vary the switching frequency. Additionally, an internal error amplifier reduces the output voltage when the load current rises above its rated limit to maintain safe operation.The ADP2166ACPZ-3.3-R7 also features an adjustable overcurrent protection circuit. Its current turn-off limit is programmable via a resistor divider network for optimal adaptation to a given application. Finally, an overtemperature protection (OTP) circuit prevents thermal overstress, further ensuring the safe operation of the power management system.

Conclusion

The ADP2166ACPZ-3.3-R7 is a reliable DC-DC switching regulator from Analog Devices Inc. It is available in a thermally enhanced SO-8 package, and offers a high level of integration for a range of power-related applications. Its low quiescent current, current limiting, and OTP circuit, as well as its frequency foldback-mode control and current turn-off limit, all make it an excellent choice for reliable, steady voltage output in a wide variety of applications, including laptops, gaming consoles, set-top boxes, wearables, and more.

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