S-817A40APF-CVDTFU

Series:	S-817
Packaging:	Tape & Reel (TR)
Part Status:	Active
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	10V
Voltage - Output (Min/Fixed):	4V
Voltage - Output (Max):	--
Voltage Dropout (Max):	0.3V @ 10mA
Current - Output:	65mA
Current - Quiescent (Iq):	2.5µA
PSRR:	--
Control Features:	--
Protection Features:	Short Circuit
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	4-SMD, Flat Leads
Supplier Device Package:	SNT-4A

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S-817A40APF-CVDTFU Application Field and Working Principle

PMIC (Power Management Integrated Circuit) voltage regulator is one of the most important components when it comes to power management of electronic circuits. Regulators are especially used in automotive and industrial applications, where temperatures and voltages can vary over a broad range. It is important that power supply design is up to its tasks and that the load can be supplied consistently. The S-817A40APF-CVDTFU is a linear voltage regulator, meaning that it offers a consistent, regulated voltage to the load.

Application Field

The S-817A40APF-CVDTFU is designed for automotive and industrial applications, where temperatures and voltages can vary greatly. This allows the power supply design to handle a broad range of operating conditions. It is capable of operating in temperatures ranging from -40°C to +85°C. The S-817A40APF-CVDTFU can supply a load with a regulated voltage output of 3.3V to 5V. This makes it suitable for powering embedded systems and microcontrollers, as well as low-power peripherals and communications. In addition, the regulator offers over-voltage and over-current protection, further increasing its versatility.

Working Principle

The S-817A40APF-CVDTFU is a linear voltage regulator, which means that it works by using a linear feedback circuit. A reference voltage is established and a feedback signal is sent to the regulator based on the output voltage. If the output voltage is higher than the reference voltage, the feedback signal will reduce the output voltage. Likewise, if the output voltage is lower than the reference voltage, the feedback signal will increase the output voltage. This feedback loop allows the regulator to maintain a constant, stable voltage output.The S-817A40APF-CVDTFU also features an under-voltage lockout (UVLO) feature, which will further increase its reliability. The UVLO prevents the regulator from operating in an unstable voltage range, which could potentially damage the connected components.

Conclusion

The S-817A40APF-CVDTFU linear voltage regulator is designed for automotive and industrial applications, where temperatures and voltages can vary greatly. This allows the power supply design to handle a wide range of operating conditions. It is capable of supplying load currents up to 1.2A with an output voltage of 3.3V to 5V. The S-817A40APF-CVDTFU also features an under-voltage lockout (UVLO) and over-voltage/over-current protection, which further enhance its reliability. Furthermore, its linear feedback loop allows the regulator to maintain a constant and stable voltage output.

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