RT5785AGJ8F

Voltage - Input (Max):	6V
Supplier Device Package:	TSOT-23-8
Package / Case:	SOT-23-8 Thin, TSOT-23-8
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	1.5MHz
Current - Output:	2A
Voltage - Output (Max):	6V
Voltage - Output (Min/Fixed):	0.6V
Series:	ACOT™
Voltage - Input (Min):	2.5V
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

RT5785AGJ8F is a DC-DC switching regulator, which acts as a power management integrated circuit (PMIC). It is a high efficiency, low cost and low dropout voltage regulator that has been designed for switching regulator applications needed by consumer electronics and digital media devices.

Features

RT5785AGJ8F provides a number of features, including low dropout voltage, high speed PWM control, wide input voltage range, high efficiency operation and high peak current. Low dropout voltage means RT5785AGJ8F can work with input voltages close to its output voltage, making it suitable for low voltage applications where supply voltage variations can cause problems. The PWM controller inside the device allows high speed switching, offering better performance than linear regulators. RT5785AGJ8F also has a wide input voltage range (4.5V and above) so that it can be used in applications that need a wide input voltage range.In addition to the features above, RT5785AGJ8F also offers low external component count, integrated protection features, including overcurrent protection and thermal shutdown. This makes RT5785AGJ8F easy to use and highly reliable.

Application Field

RT5785AGJ8F is suitable for a wide range of applications, such as:

• Battery-powered systems
• Portable and handheld equipment
• Power adapters
• Power management in mobile communication devices such as cell phones and smartphones
• Set-top boxes
• Digital media players

RT5785AGJ8F can also be used in many applications that require reliable high speed, low dropout voltage regulation, such as automotive and defense applications.

Working Principle

RT5785AGJ8F is a DC-DC switching regulator, which takes an input voltage and converts it to a regulated output voltage. The internal PWM controller slams switches that alternate between off and on-states. Through this method, the switching regulator is able to control the output voltage both precisely and efficiently.When the switch is turned on, the current flows from the input voltage to the output voltage, and the magnetic field generated by the current induces a voltage in the inductor, storing energy. When the switch is turned off, the current can still flow in the opposite direction towards the output voltage, without any input voltage. This allows the voltage to remain stable at the output voltage.The RT5785AGJ8F also has protection features, such as overcurrent and thermal protection. This makes it extremely reliable, preventing possible damage due to external factors.

Conclusion

RT5785AGJ8F is a high efficiency, low cost and low dropout voltage regulator that has been designed for switching regulator applications needed by consumer electronics and digital media devices. It offers a number of features, such as low dropout voltage, high speed PWM control, wide input voltage range, high efficiency operation and high peak current as well as low external component count, integrated protection features. It is suitable for a wide range of applications, such as battery-powered systems, portable and handheld equipment, power adapters, power management in mobile communication devices, set-top boxes and digital media players. As the switch alternates between off and on-states, the voltage is regulated and kept stable. RT5785AGJ8F also has protection features, making it highly reliable.

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