RT5712EHGQW

Voltage - Input (Max):	6V
Supplier Device Package:	6-WDFN (2x2)
Package / Case:	6-WDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	1MHz
Current - Output:	2A
Voltage - Output (Max):	3.4V
Voltage - Output (Min/Fixed):	0.6V
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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Introduction of RT5712EHGQW

RT5712EHGQW is a PMIC chip manufactured by Richtek, which is used as a DC DC switching regulator for voltage regulation. It has a wide input voltage range of 4.5V to 28V, and provides an adjustable output voltage based on the user’s requirements. The RT5712EHGQW can also provide up to 5A of current, and operates up to a frequency of 4MHz. In addition, it provides many protect features, such as load short protection, over voltage protection, over current protection and thermal shutdown.

Application Fields of RT5712EHGQW

The RT5712EHGQW DC/DC switching regulator can be used in a wide range of applications, such as industrial and automotive electronics. It can be used to regulate the voltage of embedded systems and other microprocessor-based systems that require precise voltage levels. It can also be used for the power supply of various appliances and lights. Additionally, RT5712EHGQW can be used for high current loads, such as DC motors and solenoids.

Working Principle of RT5712EHGQW

RT5712EHGQW DC/DC switching regulator adopts a synchronous buck pre-regulator work mode. This work mode adopts a synchronous rectifier, and is suitable for the applications that need a small output ripple and high efficiency. The RT5712EHGQW adopts the synchronous rectifier to improve the efficiency of the converter, and it also uses a low-RDS(on) power MOSFET, to reduce the power loss of the on-state regulator.

Explaining the Output Regulation of RT5712EHGQW

The output voltage of RT5712EHGQW can be adjustable with external resistors connected to the VSET1 and VSET2 pins. With the resistors connected these pins, the internal amplifier of the regulator will compare the voltage from the VSET1 and VSET2 pins to the internal reference voltage, which is the error voltage feedback. It will then provide the PWM signal to the driver circuit according to the error amount. As the input voltage to the error amplifier changes, the RT5712EHGQW adjusts the output voltage by varying the duty cycle of the PWM signal.

Conclusions

RT5712EHGQW is an ideal choice for voltage regulation in a variety of applications. Its wide input voltage range and adjustable output voltage make it suitable for a range of applications. In addition, the RT5712EHGQW adopts a synchronous buck pre-regulator work mode and low-RDS(on) power MOSFET, making it a great choice for applications with high current load and high efficiency requirements.

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