RT8064ZQW

Voltage - Input (Max):	5.5V
Supplier Device Package:	8-WDFN (3x3)
Package / Case:	8-WDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	200kHz ~ 2MHz
Current - Output:	2A
Voltage - Output (Max):	5V
Voltage - Output (Min/Fixed):	0.8V
Series:	--
Voltage - Input (Min):	2.7V
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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RT8064ZQW Application Field and Working Principle

DC-DC Switching Regulators are circuit components used to step down or step up electronic signals. The RT8064ZQW is a high-efficiency, low-voltage DC-DC converter built for mobile phones, ultra-thin laptop and other portable computing devices.

Features Overview

The RT8064ZQW features a wide voltage range from 1.1V to 5.5V, an external power supply input range of 4.5V to 25V and high efficiency of up to 90% at light loads. It also has an integrated power switch, voltage feedback sense and temperature monitoring, making it a reliable component for portable devices. In addition, the RT8064ZQW is designed with a soft start feature that limits the inrush current, which helps protect the device.

Application field

The RT8064ZQW is a high-efficiency DC-DC switching regulator ideally suited for use in smartphones, tablets, ultrabook, and other mobile devices. It is perfect for applications that require low-voltage conversion and high-efficiency, such as battery charging, battery management, and always-on power conversion.

Working principle

The RT8064ZQW works on the principle of pulse-width modulation. It draws current from the input voltage and uses a switching technique to regulate the output voltage. The output voltage is controlled by varying the pulse width of the on/off cycle, which results in an average voltage of the desired level. When the current is low, the pulse width is adjusted to maintain the output voltage. This helps increase efficiency and reduce heat build-up in the system.The RT8064ZQW also features a temperature protection system which automatically shuts the regulator off if the internal temperature reaches a certain level. This helps protect the device and ensure the reliable operation of the converter.

Conclusion

The RT8064ZQW is a high-efficiency, low-voltage DC-DC switching regulator designed for mobile devices. With its high efficiency and integrated power switch, voltage feedback sense, and temperature monitoring, it is an ideal solution for low-power applications. The RT8064ZQW provides reliable power conversion and protects against overheating in portable devices due to its temperature protection system.

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