AP7343D-34W5-7

Voltage Dropout (Max):	0.29V @ 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):	3.4V
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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Introduction

The AP7343D-34W5-7 is a linear voltage regulator that belongs to the PMIC family of components offered by the Japanese manufacturer, AIPON Co., Ltd. The purpose of this article is to provide readers with an overview of the features and benefits of using the AP7343D-34W5-7, as well as an introduction to its application fields and its working principle.

Features & Benefits

The AP7343D-34W5-7 is a linear voltage regulator with adjustable output voltage range from 3.3V to 5.7V, and a maximum output current of 0.5A. It has an input voltage range from 4.4V to 36V, and is offered in an ultra-compact and low-profile SOT-23 package.The device also features an internal soft start circuit which limits inrush current during startup, as well as an over current protection circuit which limits output current and prevents the device from sustaining damage due to heavy loading. Additionally, the AP7343D-34W5-7 has a wide operating temperature range of -40°C to +85°C, and an accurate output voltage of 2.5%, making it suitable for a variety of applications.

Application Fields and Working Principle

The AP7343D-34W5-7 is a versatile linear voltage regulator that can be used in a wide range of applications such as automotive, industrial, consumer and portable electronics. Its adjustable output voltage range and maximum current rating make it ideal for providing stable and reliable power supply to various types of circuits.At its core, the AP7343D-34W5-7 uses an internal linear regulator circuit to regulate the output voltage. The device’s input voltage is regulated by an internal linear regulator circuit, an operational amplifier, an external voltage divider, and an internal bandgap reference. The operational amplifier continuously compares the output voltage with the reference voltage, while the external voltage divider sets the output voltage. When the output voltage drops below the reference voltage, the operational amplifier triggers the linear regulator to increase the input current to the switching regulator until the output voltage is regulated back to the reference voltage. ConclusionThis article has provided readers with an overview of the features and benefits of the AP7343D-34W5-7 linear voltage regulator. With its adjustable output voltage range and maximum current rating of 0.5A, it is suitable for a variety of applications ranging from automotive, industrial and consumer to portable electronics. Moreover, its internal soft start circuit limits inrush current during startup, and its over current protection circuit limits output current and prevents the device from becoming damaged. Additionally, the device has an extended operating temperature range of up to 85°C, and an accurate output voltage of 2.5%. This makes it one of the most reliable and versatile PMICs available on the market today.

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