AP7315-25SA-7

Current - Output:	150mA
Supplier Device Package:	SOT-23
Package / Case:	TO-236-3, SC-59, SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current
Control Features:	--
PSRR:	75dB (1kHz)
Current - Supply (Max):	100µA
Current - Quiescent (Iq):	60µA
Series:	--
Voltage Dropout (Max):	0.32V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.5V
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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AP7315-25SA-7 Application Field and Working PrincipleAP7315-25SA-7 is a linear voltage regulator integrated circuit (IC) that belongs to a class of power management and integrated circuits (PMICs) commonly referred to as voltage regulators. Voltage regulators are electrical components that maintain a steady voltage level, allowing for AC-DC or DC-DC power conversion and system power optimization. Voltage regulators provide protection from over voltages, excessive current, and voltage loss.The AP7315-25SA-7 is a low dropout linear regulator that requires less input voltage than the output voltage to regulate the output voltage. This is especially important in battery operated systems, where output power often drops as the battery voltage drops. The AP7315-25SA-7 regulates the output voltage of up to 1.7V and offers both external compensation and enabling functions, making it the perfect choice for battery powered systems. The AP7315-25SA-7 offers an extremely low dropout voltage of only 0.1V and a low quiescent current when in active mode, which makes it an ideal choice for mobile and portable devices.In terms of its application field, the AP7315-25SA-7 is used in a wide range of consumer electronics and industrial applications. The device can be used in data communication and networking equipment such as commercial wireless routers and PDAs, as well as other consumer electronic appliances such as MP3 players, digital cameras, and LCD TVs. It is also suitable for industrial applications such as automotive and industrial motor controllers, programmable logic controllers,and power supplies for medical applications.The AP7315-25SA-7 offers high load regulation, low dropout voltage, and fast transient response. The integrated circuit also provides over current, overtemperature, and overload protection. The device offers low quiescent current and an adjustable output current limit feature, which allows for greater design flexibility.The working principle of the AP7315-25SA-7 is based on a voltage feedback control system. This system uses an error amplifier and output voltage divider to feed the output voltage back to the error amplifier. The error amplifier then compares the voltage feedback signal to a reference voltage and adjusts the output voltage to maintain the proper output voltage.The AP7315-25SA-7 also offers an enable function, which allows the user to control the output voltage of the regulator. An external voltage can be used to turn the regulator on or off, which is useful when the system is powered down and no current is drawn.In conclusion, the AP7315-25SA-7 is a versatile linear voltage regulator IC. It offers features such as low dropout voltage, low quiescent current, and fast transient response, making it a suitable choice for a variety of applications. The device also offers enable and compensation functions, as well as over current protection and overtemperature protection. Overall, the AP7315-25SA-7 is a reliable and cost-effective solution for regulating output voltage in various applications.

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