NCP177BMX110TCG

Series:	--
Part Status:	Active
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	5.5V
Voltage - Output (Min/Fixed):	1.1V
Voltage - Output (Max):	--
Voltage Dropout (Max):	--
Current - Output:	500mA
Current - Quiescent (Iq):	90µA
PSRR:	75dB (1kHz)
Control Features:	Enable
Protection Features:	Over Current, Over Temperature
Operating Temperature:	-40°C ~ 85°C (TA)

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Introduction

NCP177BMX110TCG is an integrated circuit (IC) belonging to the Linear voltage regulator family, a product of ON Semiconductor. It is particularly suitable for various low voltage applications such as automotive and consumer electronics. NCP177BMX110TCG is a low noise and high DC gain monolithic linear voltage regulator featuring a single voltage output as well as a two-level current limit protection for industrial, audio, automotive, and computing applications. This IC is designed to deal with high frequency interferences and provides very low dropouts.

Application Fields

The wide range of features provided by this IC enables its applications in a variety of fields, including consumer electronics and automotive. NCP177BMX110TCG can be used in PCs, mobile devices and consumer audio, video and AV products, as well as in combination air and liquid cooling systems, automotive lighting and secondary power supplies, low voltage control systems and audio amplifiers.

Advantages over Other Voltage Regulators

NCP177BMX110TCG offers several advantages compared to other voltage regulators. Firstly, it has a very low operating voltage of 0.9V, allowing it to achieve lower power consumption than other comparable regulators. Furthermore, its wide operating temperature range of up to - 40°C to + 125°C makes it suitable for a larger range of applications. Additionally, NCP177BMX110TC has a very high DC gain of 900V/V, providing higher accuracies and a good noise immunity.

Design of NCP177BMX110TCG Voltage Regulator

The design of the NCP177BMX110TCG voltage regulator consists of two main parts: the inner loop and the outer loop. The inner loop consists of an on-chip voltage reference and an error amplifier. The voltage reference is used to set the desired output voltage, while the error amplifier ensures that the output voltage is precisely maintained. The outer loop consists of an output node and a set of current limit and temperature compensators which respond to the changes in the output voltage.

Working Principle

NCP177BMX110TCG works on the principle of regulating the output voltage by comparing it to a fixed reference voltage. When the output voltage deviates from the reference voltage, the error amplifier generates a correction signal which is sent to the output node to ensure that the output voltage is kept constant. The two-level current protection limit prevents the output voltage from exceeding a certain level and helps to protect the system from high current and thermal overloads. The temperature compensation compensates for temperature variations to ensure that the output voltage is kept within a certain range.

Conclusion

NCP177BMX110TCG is a low noise and high DC gain monolithic linear voltage regulator offering various advantages over other voltage regulators, making it a great choice for a variety of applications. With its wide operating voltage range and two-level current protection limit, it is an optimal choice for automotive and consumer electronics applications. Furthermore, its temperature compensation feature makes it an ideal solution for extreme temperature environments.

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