CS8101YDWF20

Current - Output:	100mA
Base Part Number:	CS8101
Supplier Device Package:	20-SOIC
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Over Voltage, Reverse Polarity, Short Circuit
Control Features:	Enable, Reset
PSRR:	75dB (120Hz)
Current - Supply (Max):	20mA
Current - Quiescent (Iq):	140µA
Series:	--
Voltage Dropout (Max):	0.6V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	30V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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Introduction

PMIC (Power Management Integrated Circuit) voltage regulators are the essential components that regulate or convert voltage in a power supply system. Linear voltage regulators are one of their main categories which are widely used in modern electronics. CS8101YDWF20 is one such example of a linear voltage regulator that has been adopted for various applications in recent years. This article aims to discuss the application field and working principle of CS8101YDWF20 in detail.

Application field

The CS8101YDWF20 linear voltage regulator is a single-chip power solution suitable for applications such as laptop computers, tablet PCs, transportable automated devices and other various battery powered devices. The chipset contains a wide range of power management functions including DV/DC conversion, PWM control for DC/DC voltage, LED dimming and other features which come in handy in such applications.One of its features is the wide input voltage range which makes it highly suitable for applications that require a long time operation under a low voltage condition or even during voltage dropouts. It is a feature of the CS8101YDWF20 which attracts most of its customers. The CS8101YDWF20 also has short start-up time, low stand-by current and is guaranteed to work at a wide temperature range of -20°C to 85°C. Other features which have increased its application field are its flexibility in terms of the topological solutions and its high conversion efficiency, which has enabled its successful implementation in a wide range of applications including power saving devices, portable PCs, solar energy systems and so on.

Working Principle

The basic working principle of the CS8101YDWF20 voltage regulator is based on linear regulation. The regulator works by setting the input voltage to a constant voltage level and further adjusting the output voltage to desired level with the help of a linear amplifier circuit. The first step is to set the input voltage to a constant level which is done by using a voltage regulator integrated circuit. This voltage regulator circuit contains an adjustable reference voltage which is set to a desired level by means of an external resistance. The input voltage is applied to the voltage regulator circuit and is regulated accordingly. The next step is to adjust the output voltage to the desired level. This is done by using an amplifier circuit which is connected to the output of the voltage regulator circuit and is used to amplify the regulated voltage. The output voltage is thus regulated to the desired level and it is maintained until the input voltage changes or until the output load is changed.

Conclusion

The CS8101YDWF20 voltage regulator has a wide range of applications in electronics due to its wide input voltage range, high efficiency, short start-up time and low stand-by current. It works based on linear regulation wherein the input voltage is regulated to a constant voltage level and then the output voltage is adjusted to the desired level by using a linear amplifier circuit. All these features have enabled the CS8101YDWF20 to be successfully implemented in various applications across industries.

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