AP7315D-12FS4-7B

Current - Output:	150mA
Supplier Device Package:	X2-DFN1010-4
Package / Case:	4-XDFN Exposed Pad
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):	0.64V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.2V
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 to AP7315D-12FS4-7B

AP7315D-12FS4-7B is a family of Linear Voltage Regulators that are powered by PMIC (Power Monitor IC). It consists of an integrated positive and negative linear regulator, both of which are capable of providing a regulated output from an input of up to 1.5V. The output is adjustable from 10 to 12V. This regulator uses an internal switching transistor to regulate and control the output voltage.

Application Field and Working Principle of AP7315D-12FS4-7B

The AP7315D-12FS4-7B provides a wide range of solutions. It is commonly used in automotive, consumer, and industrial applications. In the automotive market, this regulator is used for powering audio and video equipment, navigation systems, input/output converters and switching regulators. Additionally, it is used to supply DC/DC converters, voltage reference and controlled gate circuits. In consumer electronics, the AP7315D-12FS4-7B is used to regulate power supplies in TVs, stereos, power amplifiers and hard drives. Its wide input voltage range allows it to be used in mobile devices that are powered by a variety of sources. It can also be found in industrial applications as an auxiliary power supply for control circuits. The working principle of the AP7315D-12FS4-7B is based on a current mode control. The regulating transistor switches quickly between two operating points determined by a reference voltage, the feedback resistor and the external components. During the off-state, the transistor blocks the input voltage and absorbs the energy. During the on-state, the transistor quickly discharges the energy stored in the inductor and starts to prevent the voltage ripple by absorbing the excess current. The output voltage is determined by the feedback voltage, determined by the voltage divider of the external resistors.

Conclusion

In conclusion, the AP7315D-12FS4-7B is a versatile and efficient PMIC-based linear voltage regulator. Its wide input voltage range, adjustable output voltage and current mode control make it suitable for a variety of applications in automotive, consumer and industrial markets. Its wide input voltage range and adjustable output voltage make it an extremely flexible solution for powering a variety of devices.

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