NCV4269D2

Current - Output:	150mA
Base Part Number:	NCV4269
Supplier Device Package:	14-SOIC
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Reverse Polarity, Short Circuit
Control Features:	Reset
PSRR:	--
Current - Supply (Max):	3mA
Current - Quiescent (Iq):	250µA
Series:	--
Voltage Dropout (Max):	0.5V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	45V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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Introduction

NCV4269D2 is a high-performance linear regulator produced by ON Semiconductor, one of the leading manufacturers of power integrated circuits (ICs). It is designed to provide up to 1.2A of output current at a wide range of input supply voltages and can be used for both line and point-of-load voltage regulation. It implements several protective features to safeguard the system from overvoltage, short-circuit and over-current conditions. It also offers a power saving sleep mode and adjustable output voltage range, making it suitable for a wide range of applications.

Features and Specifications

NCV4269D2 is offered in a 3mm x 3mm 8-pin TDFN package and its features include an output voltage range between 0.8V and 4.5V, a maximum output current of 1.2A and a quiescent current of 1.7uA in active mode and 0.2uA in sleep mode. The device is able to operate in environments between -40°C and 125°C and is characterized by a low drop-out voltage of 75mV at 1A load current. Additionally, this device incorporates a power-up sequence that minimizes inrush current during system startup, thereby protecting other components of the system.

Application and Working Principle

NCV4269D2 is suitable for powering a wide range of applications, including battery-powered subsystems, Sensors and embedded systems, drones, robotics and internet of things (IoT) applications.The device works by comparing the internal reference voltage, Vref, and the voltage at the feedback pin (FB). If the voltage at the FB is higher than the Vref, the device will adjust the gate of the internal PMOS power MOSFET transistor, thereby reducing the output voltage to the desired level. Conversely, if the voltage at the FB is lower than the Vref, the device will increase the gate of the internal PMOS power MOSFET transistor, thus increasing the output voltage. This way the device is able to maintain the output voltage and regulate it according to the supplied load current.

Conclusion

The NCV4269D2 is a high-performance linear voltage regulator designed to provide stable output voltage in a wide range of applications. It is characterized by a wide input voltage range of 2.7V to 5.5V, a low drop out voltage of 75mV at 1A and an adjustable output range of 0.8V to 4.5V. Additionally, it offers several protection features and can be used in different environmental conditions between -40°C and 125°C.

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