AP7343-18W5-7

Voltage Dropout (Max):	0.39V @ 300mA
Supplier Device Package:	SOT-25
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current
Control Features:	Enable
PSRR:	75dB (1kHz)
Current - Quiescent (Iq):	60µA
Current - Output:	300mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	5.25V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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AP7343-18W5-7 Application Field and Working Principle

Introduction

AP7343-18W5-7 is an integrated linear voltage regulator designed to convert a voltage of 5V to an adjustable voltage range from 0.81V to 1.56V. It is designed to provide low dropout voltage, low noise, high accuracy, and low current consumption. The AP7343-18W5-7 is an ideal choice for applications such as PC, notebook, and other power equipment.

Application Field of AP7343-18W5-7

The AP7343-18W5-7 is most commonly used in applications such as PC, notebook computers, gaming machines, digital cameras, mobile devices and office automation equipment. It is also used in mobile power systems such as electric vehicles, solar battery systems, and wind turbines. In order to protect sensitive electronic components from the damage caused by voltage spikes, the AP7343-18W5-7 is suitable for applications that require over-voltage protection and over-current protection.

Features of AP7343-18W5-7

The AP7343-18W5-7 offers a wide range of features that make it an effective and reliable power conversion solution. The following are some of its main features:* High Efficiency - The AP7343-18W5-7 is designed to provide high efficiency with low quiescent current and low on resistance.* Low Noise - The AP7343-18W5-7 is designed to ensure low noise and high accuracy over temperature and input voltage ranges.* Over-Voltage and Over-Current Protection - The AP7343-18W5-7 is capable of providing over-voltage and over-current protection for sensitive electronic components.* Reverse Polarity Protection – The AP7343-18W5-7 features reverse polarity protection to protect from voltage spikes.

Working Principle of AP7343-18W5-7

The AP7343-18W5-7 is an integrated linear voltage regulator capable of providing volts from a range of 5V to 1.56V. It works by converting the input voltage (5V) to a desired output voltage range by using a linear voltage regulator.The linear voltage regulator works by establishing an output voltage that is constant regardless of variations in the input voltage and load current. Therefore, when the load changes, such as when a PC or notebook computer is turned on and off, the linear voltage regulator will always maintain the same output voltage. The main components involved in the functioning of the AP7343-18W5-7 are the error amplifier, voltage reference, voltage divider, output stage, etc. These components interact to ensure the correct voltage output.The error amplifier in the AP7343-18W5-7 is responsible for monitoring the output voltage. The voltage reference establishes the reference voltage for the error amplifier and voltage divider. The voltage divider divides the input and output voltages to determine the error voltage, which is then fed to the error amplifier. The output stage is responsible for delivering the desired output voltage according to the output voltage control signal from the error amplifier.

Conclusion

The AP7343-18W5-7 is an integrated linear voltage regulator designed to provide a constant output voltage ranging from 0.81V to 1.56V from an input voltage of 5V. It is most commonly used in applications such as PC, notebook computers, gaming machines, digital cameras, mobile devices and office automation equipment, as well as in mobile power systems such as electric vehicles, solar battery systems, and wind turbines. It is capable of providing low dropout voltage, low noise, high accuracy, and low current consumption. The AP7343-18W5-7 is an ideal choice for applications that require over-voltage protection and over-current protection.

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