Current - Output:	1A
Base Part Number:	NCP1117ST12
Supplier Device Package:	SOT-223
Package / Case:	TO-261-4, TO-261AA
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	54dB (120Hz)
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	1.2V @ 800mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	12V
Voltage - Input (Max):	20V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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NCP1117ST12T3 Application Field and Working Principle

Introduction

NCP1117ST12T3 is a linear voltage regulator that has a wide range of applications in many industries. It is a single-output low dropout regulator that comes with standard features like a maximum output current of 1A and adjustable output voltage. It also offers short-circuit protection and over-temperature protection. The NCP1117ST12T3 is designed for cost-sensitive high-performance applications, such as cell phones, gaming consoles, digital audio players, digital cameras, and other portable devices.

Application Field

The NCP1117ST12T3 is a high-performance and low-cost linear voltage regulator that is suitable for a wide variety of applications. It can be used in consumer electronics, telecommunications, automotive, and industrial power management systems. It is commonly used in applications that require a stable voltage, such as consumer electronics, portable devices, and automotive systems.It is also used in applications that require long-term stability and low power consumption. The low dropout voltage feature of the NCP1117ST12T3 helps to reduce power consumption, making it suitable for battery-powered devices.

Working Principle

The NCP1117ST12T3 is a linear voltage regulator that uses a common ground input to produce a regulated voltage output. The regulator has a PNP pass transistor that allows a certain amount of current to flow from the input to the output. This current is regulated by an internal current limiting circuit.The internal circuitry of the NCP1117ST12T3 is designed to maintain a constant output voltage regardless of input variations. The regulator also features a short-circuit protection feature that protects the device from destruction in case of short-circuit conditions. It also has an adjustable voltage output that can be regulated from 2V to 12V.

Advantages of the NCP1117ST12T3

The NCP1117ST12T3 is a cost-effective and high-performance linear voltage regulator. It offers several advantages such as low dropout voltage, low power consumption, and adjustable output voltage. It is typically used in applications that require a stable voltage, long-term stability, and low power consumption. The NCP1117ST12T3 also provides excellent thermal stability, along with easy design and high rim-rate performance. It also includes a wide range of input protection features, such as reverse current blocking, reverse voltage protection, over-current protection, and over-temperature protection. In addition, the NCP1117ST12T3 is RoHS compliant and uses lead-free packaging materials, making it an environmentally friendly component.

Conclusion

The NCP1117ST12T3 is a linear voltage regulator that is suitable for a wide variety of applications. It has a wide range of features and advantages, including low dropout voltage, low power consumption, adjustable output voltage, thermal stability, and input protection features. It offers excellent performance for cost-sensitive and high-performance applications.

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