CS8371ET7G

Current - Output:	1A, 250mA
Base Part Number:	CS8371
Supplier Device Package:	TO-220-7
Package / Case:	TO-220-7
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Temperature, Over Voltage, Short Circuit
Control Features:	Enable
PSRR:	90dB ~ 67dB (120Hz ~ 20kHz)
Current - Supply (Max):	30mA
Current - Quiescent (Iq):	7mA
Series:	--
Voltage Dropout (Max):	1.5V @ 1A, 2.5V @ 250mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	8V, 5V
Voltage - Input (Max):	45V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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Introduction

CS8371ET7G is a low dropout (LDO) linear voltage regulator from CIRRUS Logic, Inc. It offers high power supply accuracy, low quiescent current consumption and universal input voltage range from 3.3V to 24V. This high performance regulator offers a wide voltage range and high current capability, making it ideal for many power supply applications.

Features

CS8371ET7G features include adjustable and fixed output settings, integrated enable/disable logic, over-temperature protection, short-circuit protection, current limit, and over-voltage protection. Its wide input voltage range and low quiescent current makes it suitable for use in a wide range of applications and is capable of power-regulated maintenance during transient loading and line voltage changes. Other features of this regulator include fast line and load transient response, internal thermal shutdown with hysteresis, under-voltage lockout, and thermal overload protection.

Applications

CS8371ET7G is ideal for many power supply applications. It can be used in variety of designs such as industrial equipment, process control, HVAC and medical equipment. It is also suitable for automotive applications, such as power supply for engine control sensors and other noise sensitive integrated circuits.

Working Principle

The CS8371ET7G is a linear regulator designed for use in power supply applications. It works by converting a higher input voltage to a lower output voltage. It also helps to protect sensitive components from input voltage perturbations, by providing a stable, clean DC output voltage. It does this by utilizing a negative feedback loop which compares the output voltage to a reference voltage and adjusts the driving force of the output transistor, as necessary to regulate the output voltage at its desired value.The linear regulator is more efficient than the more common switching regulator. This is because it has less components, is easier to use and fewer dynamics creating losses. The key components in a linear regulator are an input filter, an output filter, a voltage reference, a current source, an output driver, and an over-current protection device. The linear regulator works by using a feedback loop to maintain the output voltage at the desired value. The loop compares the voltage at the output to the reference voltage. If the output voltage is lower than the reference voltage, the initial current is increased. If the output voltage is too large, then the loop reduces the current. This allows the regulator to continually adjust the output voltage to a predetermined level.

Conclusion

In conclusion, CS8371ET7G is a low dropout linear voltage regulator from CIRRUS Logic, Inc. Its wide input voltage range, low quiescent current consumption, integrated enable/disable logic and other features make it suitable for many power supply applications. Its working principle is based on a negative feedback loop, which compares the output voltage to a reference voltage and suitably adjusts the driving force of the output transistor. This helps provide stable, clean DC outputs for a wide range of applications.

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