MP1474DJ-LF-ZX

Series:	--
Packaging:	Cut Tape (CT)
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	4.5V
Voltage - Input (Max):	16V
Voltage - Output (Min/Fixed):	0.8V
Voltage - Output (Max):	13V
Current - Output:	2A
Frequency - Switching:	500kHz
Synchronous Rectifier:	Yes
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SOT-23-8
Supplier Device Package:	TSOT-23-8

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PMIC - Voltage Regulators - DC DC Switching Regulators

The MP1474DJ-LF-ZX is a highly efficient, compact and cost-effective switching voltage regulator and is commonly used in applications such as smartphones, notebooks, tablets, set-top boxes, digital cameras and other devices that require small, light and reliable voltage regulation.

Application Field

The MP1474DJ-LF-ZX is used in a broad range of types of applications, such as:

• Smartphones, tablets and other portable electronic devices.
• Notebooks, laptops, netbooks and other appliances.
• Set-top boxes, digital cameras, smart watches and similar devices.
• Automotive and industrial equipment.

The device is also suitable for use in high-performance gaming consoles and controllers. It is highly efficient, with an efficiency of up to 96%.

Working Principle

The MP1474DJ-LF-ZX is a step-down switcher, meaning that it takes in a higher input voltage and outputs a lower, regulated output voltage. A voltage regulator is an electrical circuit that is designed to control and maintain the voltage output within a specific range. The MP1474DJ-LF-ZX is a step-down regulator, which means that it takes in a higher input voltage and outputs a lower, regulated output voltage. The device consists of a power stage and a control stage. The power stage is responsible for the conversion of AC or DC input voltage to the regulated DC output voltage. The primary components of the power stage are the switching MOSFET, inductor, and the output capacitor. The switching MOSFET acts as a switch which is turned on and off by the control circuit, allowing the energy from the input to be stored every time it is turned on and allowing it to be released as output voltage through the output capacitor when it is turned off.The control stage, on the other hand, is responsible for switching the switching MOSFET on and off in order to obtain the regulated output voltage. It monitors both the input voltage and the output voltage, and is designed to switch the switching MOSFET on and off at the right times in order to maintain the output voltage within the specified range. It is composed of numerous components, including the error amplifier, current limit comparator, reference voltage, PWM comparator, and the oscillator. The error amplifier compares the output voltage to the reference voltage and drives the PWM comparator. The PWM comparator compares the output of the error amplifier with the triangle wave created by the oscillator and drives the current limit switch. When the current limit switch is closed, the power MOSFET is driven into conduction, allowing input energy to be stored by the inductor. When the current limit switch is open, the power MOSFET is disconnected from the output, allowing the energy stored by the inductor to be released as output voltage through the output capacitor.The MP1474DJ-LF-ZX is highly efficient and reliable, and is a great choice for use in applications where efficiency and accuracy are both important. It is also very easy to use and configure, making it desirable for use in cost-sensitive designs.

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