NCV4274ST33T3G

Current - Output:	400mA
Base Part Number:	NCV4274
Supplier Device Package:	SOT-223
Package / Case:	TO-261-4, TO-261AA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C
Protection Features:	Over Temperature, Reverse Polarity, Short Circuit
Control Features:	--
PSRR:	60dB (100Hz)
Current - Supply (Max):	45mA
Current - Quiescent (Iq):	250µA
Series:	Automotive, AEC-Q100
Voltage Dropout (Max):	1.33V @ 250mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	40V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

NCV4274ST33T3G is a Linear voltage regulator from NXP Semiconductors, which is designed for applications that require high power efficiency. It has a wide range of output voltages and adjustable current limits. The device uses a low-dropout (LDO) architecture and has a positive output voltage of 12V and a maximum input voltage of 30V. It also supports limited output ripple, low quiescent current, and overcurrent protection.

Application Field

NCV4274ST33T3G is well suited for a wide range of applications. It is typically used in lithium-ion batteries, industrial modules and embedded applications, as well as in 5V to 8V linear regulation.The device can be used to provide power for digital and analog circuits in a wide range of applications such as gate drivers, charge pumps, pagers, RF receivers, cellular telephones, automotive, medical and telecom equipment, and a wide range of portable hand-held equipment.

Working Principle

NCV4274ST33T3G is a two-terminal device with a voltage reference, an input voltage divider, an error amplifier, and a series pass element. The device includes an inverting amplifier and a voltage reference, which together determine the output voltage.Input voltage is divided by the voltage reference, and this voltage is offset by the output of the error amplifier, which compares the divided voltage to the reference. The output of the error amplifier, in turn, controls the series pass element, which regulates the output voltage.

Performance

NCV4274ST33T3G has a peak output current of up to 1.5 A and a slew rate of up to 10 mV/ms. It has a wide operating temperature range of up to -40°C to 85°C, and a high load and line regulation of up to 0.005%. It has a maximum input voltage of 30V, a maximum dropout of 0.20V at 1A, a maximum output current of 1.5A and a high output ripple of up to 20mV. The device also features low quiescent current of up to 10μA, overcurrent protection and short circuit protection.

Conclusion

NCV4274ST33T3G is a high performance linear voltage regulator from NXP Semiconductors. It is ideally suited for high power applications with a wide range of output voltages and adjustable current limits. It has a wide operating temperature range, low quiescent current, overcurrent protection and short circuit protection. The device also provides high accuracy and performance, with a peak output current of 1.5A and a slew rate of up to 10 mV/ms.

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