RT8079GQW Integrated Circuits (ICs)

Voltage - Input (Max):	6V
Supplier Device Package:	16-WQFN (3x3)
Package / Case:	16-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	300kHz ~ 2MHz
Current - Output:	3A
Voltage - Output (Max):	3.6V
Voltage - Output (Min/Fixed):	0.827V
Series:	--
Voltage - Input (Min):	2.95V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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RT8079GQW belongs to the Power Management IC (PMIC) family of integrated circuits (ICs), specifically to its Voltage Regulators family and DC-DC Switching Regulators subfamily. When implemented, it provides conversion of input DC voltage within a wide range and output a regulated supply with a standard 5V or 3.3V voltage output. It has special features such as low-cost, high efficiency and low quiescent current which are optimized for portable applications.Before providing additional technical details and explore its application, it is necessary to understand its working principle. The PMIC, RT8079GQW, is a buck (step-down) switching regulator, which features wide input Voltage Range and provide a regulated output Voltage.The Conversion Principle of RT8079GQW:The RT8079GQW switching regulator comprises three key sub-circuits, which are a switched-mode power converter, an error amplifier, and an oscillator. Among these three components, the oscillator controls the time intervals of the power switch, which is further measured by the Gate Driver. The Error Amplifier is designed to compare the output with the reference Voltage and based on the errors from the difference, it generates an output Voltage. This output voltage of the Error Amplifier is then connected to the Gate Driver, which controls the timing intervals of the power switch.When the power switch is enabled by the mid-band oscillator, it allows the input voltage to pass through to the output and provides a serviceable stored energy to the output load. Eventually, the constant feedback of the output will be used to ensure that the switch is enabled or disabled until the output voltage level is determined.This kind of power management IC has different application field, mainly targeting consumer and auto-mobile Electronics, such as vehicle audio, enhanced low-end consumer-electronic products, and low-battery operated consumer products.The massive number of portable consumer products available in the market today requires a high-efficiency design for power conservation and prevent us from replacing the appliances too often. In this aspect, RT8079GQW outperforms what the traditional linear regulator can do: the device efficiency is up to 96% while linear regulators are limited to 50% efficiency. This results in decreased power dissipation and significantly lower external component count in the system, making the design a lot simpler and cost-saving.Moreover, the other feature of the PMIC, RT8079GQW, is the low quiescent current. This characteristic is often beneficial for many portable applications that can not afford an extra power drain. As a comparison, it consumes up to 90% less than the traditional linear regulator. In large scale applications, the power saving is considerable.Apart from those advantages, the RT8079GQW switching regulator is designed with a wide input voltage range, from 4.5V up to 28V, and is available in a 6-Pin SOP7 package. This makes it more flexible for circuit design involving multiple input sources, by simply adjusting the components component\'s voltage level. Despite the small size, the PMIC is also designed to have protection from short-circuit, overload, over-temperature, and undervoltage, which is essential for any reliable circuit design.For a product to succeed, it takes effort to balance the performance and cost, in both power consumption and component count. RT8079GQW switching regulator is evidently the right choice for a low-cost and highly efficient power conversion, providing only the necessary functionality needed for the device to perform.This PMIC is a versatile solution for many automobile and consumer electronics applications, targeting low-battery operated consumer products requiring long-term reliable operations. It can be put to use in many projects where power management is of utmost importance. From office printers and vending machines to in-car entertainment systems and cordless appliances, the RT8079GQW switching regulator is an ideal solution for an efficient, reliable, and cost-effective power regulation.

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