NCV1117DT20RK

Current - Output:	1A
Base Part Number:	NCV1117DT20
Supplier Device Package:	DPAK
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	70dB (120Hz)
Current - Quiescent (Iq):	10mA
Series:	Automotive, AEC-Q100
Voltage Dropout (Max):	1.2V @ 800mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2V
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Part Status:	Obsolete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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NCV1117DT20RK Application Field and Working Principle

The NCV1117DT20RK is a low dropout (LDO) linear voltage regulator. It\'s a high performance, advanced and regulated power supply IC that offers solutions for a wide range of applications, including extensive sensor and LED illumination, motor driver and Li-Ion applications. It\'s a small form factor, integrated device with an extended operating temperature range.

Features

The NCV1117DT20RK offers a wide range of features, including: - Input voltage range from 2.2V to 20V- Output voltage range from 0.8V to 17V- Maximum output current of 0.25A - Low quiescent current of 0.35mA, normal mode - Output voltage accuracy of ±1.5%- Output current accuracy of ±2%- Temperature range from -40°C to 125° C- Built-in reverse current, short circuit and thermal protection - RoHS compliant

Applications

The NCV1117DT20RK is ideal for applications requiring a wide range of input voltage and output current such as personal electronics, automotive systems, digital audio, mobile products and other professional equipment. It is designed to help reduce time-to-market and system complexity and cost while providing superior power supply regulation.

Working Principle

The NCV1117DT20RK works on the linear Voltage Regulator (LDO) principle, which allows it to get its output voltage through the adjustment of an internal reference voltage and also using feedback from the output circuits. This allows it to maintain the output voltage within a few millivolts of its expected voltage. The device uses an external resistor and capacitor connected to the FB pin for feedback and a pair of comparators for sensing the voltage at the output and the FB pin. The sensed voltage is trying to match the voltage at the FB pin by controlling the external transistor which in turn adjusts the current. This current is connected to a reference source which provides the regulated output.

Conclusion

The NCV1117DT20RK is an advanced and regulated power supply IC that offers solutions for many applications. It offers wide input voltage and current range, accurate output voltage and current accuracy and extended operating temperature range. It\'s easy to use, robust and efficient and offers a great solution for any application that requires an optimized and regulated power supply.

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