AP7315D-31W5-7

Current - Output:	150mA
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 - Supply (Max):	100µA
Current - Quiescent (Iq):	60µA
Series:	--
Voltage Dropout (Max):	0.29V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.1V
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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AP7315D-31W5-7 Application Field and Working Principle

As a voltage regulator, AP7315D-31W5-7 belongs to the category of linear regulators. Such regulators are usually integrated circuits that are electronically connected to other circuits. In simple terms, they limit fluctuations in the output voltage of the voltage at the input. This is done by changing the resistance of the circuit and manipulating the output currents.The AP7315 is an Adjustable Linear Voltage Regulator with a maximum output voltage of 5.8V. It has a low dropout voltage, low noise, and low quiescent current. Its wide adjustable range and low dropout voltage means that it can be used in a variety of applications. The chip has both Green and Orange LED indicators. It also features a wattsaver circuit which adjusts the output voltage depending on the current load. This feature allows for power savings, ideal for applications with varying power requirements.This voltage regulator has a wide range of applications including precision audio/video power systems, telecom power systems, LCD monitors and televisions, AC/DC adapters, portable electronic devices and car electronics. The AP7315D-31W5-7 has a working principle based on an adjustable output voltage regulator, which is a linear integrated circuit designed to regulate a defined constant current output. It is connected between an unregulated DC power supply and a load. The regulator maintains a constant voltage level by controlling a field effect transistor (FET).The regulator is designed to establish a minimum voltage drop between the input and the output, and thus maintain a stable output voltage. The FET is modulated by the voltage regulator to compensate for variations in the output voltage. The regulator controls the FET’s source current by varying the gate-to-source bias of the FET to balance between the variable output current and a defined reference voltage level. The regulator features adjustable resistors which set the input voltage, output voltage and maximum output current. The current flows through the resistors and generates a small amount of heat. This is dissipated by the regulator’s internal heat sink. In addition, the regulator is protected against overload and overvoltage by a current-limiting circuit. The AP7315D-31W5-7 can be used for many applications due to its wide adjustable voltage range, low dropout voltage, low noise and low quiescent current. Its wattsaver circuit is also a great feature for applications with varying power requirements. The working principle is based on an adjustable output voltage regulator and field effect transistor, making it reliable and efficient.

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