CS8122YTVA5

Current - Output:	750mA
Base Part Number:	CS8122
Supplier Device Package:	TO-220-5 Vertical
Package / Case:	TO-220-5 Formed Leads
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Over Voltage, Reverse Polarity, Short Circuit
Control Features:	Reset
PSRR:	75dB (120Hz)
Current - Supply (Max):	100mA
Current - Quiescent (Iq):	70mA
Series:	--
Voltage Dropout (Max):	0.6V @ 500mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	26V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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Introduction

The CS8122YTVA5 is a linear voltage regulator (also referred to as a linear voltage reference) that provides precise, accurate and reliable voltage regulation for a wide range of applications. It is specifically designed to maintain a constant output voltage for input voltages that vary from as low as 1.5V to as high as 20V. The device’s small size, low power consumption and high power supply rejection ratio make it an ideal solution for many portable and embedded applications. This article provides a brief overview of the CS8122YTVA5 voltage regulator and its applications, as well as its working principle.

Applications

The CS8122YTVA5 is well-suited to a variety of applications due to its comprehensive range of features. Its high power supply rejection ratio makes it suitable for use in environments with noisy and fluctuating line voltages, while its low quiescent current draw ensures efficient operation. The control voltage range of 0V to 1.5V allows users to precisely adjust the output voltage according to their requirements. Furthermore, its wide input voltage range and tight output voltage tolerances make it suitable for low-noise and high-precision applications. It is particularly well-suited for use in smartphones, portable game consoles, digital cameras and other small form factor products.

Working Principle

The CS8122YTVA5 is an integrated linear regulator consisting of an error amplifier, an output transistor, a temperature compensation network, and a current-limiting circuit. The input voltage is supplied to the error amplifier, where it is compared to a reference voltage. Any difference between the two is amplified, and the output of the error amplifier is used to control the output transistor. Since the output voltage is regulated, any fluctuation in input voltage is simply dissipated as heat.The output voltage can be adjusted by changing the reference voltage. The reference voltage is set by the on-chip temperature compensation network, which ensures temperature stability. The reference voltage can also be adjusted using an external resistor network, allowing users to customize the output voltage. The device is protected against current overloads by an on-chip current-limiting circuit.

Conclusion

The CS8122YTVA5 is a highly efficient and accurate linear voltage regulator that is well-suited for a variety of applications, including smartphones, portable game consoles, digital cameras, and other small form factor products. Its low quiescent current draw, wide input voltage range, high power supply rejection ratio, and temperature stability make it an ideal solution. The device is also protected against current overloads by an on-chip current-limiting circuit.

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