S-1312D28-A4T2U3

Current - Output:	150mA
Supplier Device Package:	HSNT-4-B
Package / Case:	4-SMD, Flat Lead Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Overcurrent, Thermal Shutdown
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Supply (Max):	30µA
Current - Quiescent (Iq):	1µA
Series:	S-1312
Voltage Dropout (Max):	0.32V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.8V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

S-1312D28-A4T2U3 is a Linear voltage regulator that is used for both fixed and adjustable output voltage with a wide range of applications. It is a high performance regulator with low quiescent current, good line and load regulation, and overcurrent and overvoltage protection. It is designed to have an excellent stability and accuracy even under harsh conditions.

Application Fields

Linear voltage regulators are widely used in many different applications such as computers, telecommunications, automotive, industrial control, networking, etc. S-1312D28-A4T2U3 is particularly suitable for portable equipment that requires a long battery life and reliable power supply. It can be used for various modes of applications such as low-noise, interference-free operation or high current load applications.Moreover, its adjustable output voltage design allows it to be used for wide voltage range applications that require accurate and stable output. This feature makes S-1312D28-A4T2U3 suitable for applications such as voltage monitoring, voltage references and overvoltage protection.

Working Principles

The S-1312D28-A4T2U3 utilizes a linear regulator to regulate the input voltage to provide a steady output voltage. The working principle of the linear voltage regulator is quite simple – the input voltage is applied to the non-inverting terminal of an operational amplifier. The output voltage is then adjusted by a variable resistor to provide a fixed output voltage.The output voltage is further adjusted with the help of a voltage reference. The voltage reference provides the threshold voltages for the operational amplifier, thus allowing it to adjust the output voltage for stability and accuracy.Moreover, an overcurrent and overvoltage protection circuit is also included in the package which helps protect the device from any unnecessary damage due to high or low input voltages.

Conclusion

The S-1312D28-A4T2U3 linear voltage regulator has various applications in different fields. It has excellent line and load regulation, low quiescent current, and overcurrent and overvoltage protection which make it suitable for applications such as portable equipment, voltage monitoring, and voltage references. Moreover, its adjustable output voltage design makes it perfect for wide voltage range applications. The working principle of the linear voltage regulator is also explained in this article.

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