NCP59749MN2ADJTBG

Voltage Dropout (Max):	0.28V @ 3A
Supplier Device Package:	20-QFN (5x5)
Package / Case:	20-VQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable, Power Good, Soft Start
PSRR:	60dB ~ 30dB (1kHz ~ 300kHz)
Current - Output:	3A
Series:	--
Voltage - Output (Max):	3.6V
Voltage - Output (Min/Fixed):	0.8V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The NCP59749MN2ADJTBG is a low-voltage, low-noise, low-dropout linear voltage regulator (LDO) designed to power small loads while operating with a wide input voltage range. It offers excellent line and load regulation, low temperature drift, and low quiescent current. Its features make it especially suited for applications that require a low noise output such as battery-backed systems, as well as automotive and industrial control systems. The NCP59749MN2ADJTBG is able to provide a regulated output voltage over a wide input voltage range, and its excellent EMI performance makes it ideal for automotive, industrial, and medical applications.

Application Field

The NCP59749MN2ADJTBG is a general-purpose, high-performance linear voltage regulator ideal for powering micro-controllers, memories, and other digital ICs. The low voltage dropout, low noise output, and wide input range make it ideally suited for battery-backed systems, automotive applications, and other portable electronic devices. Its low quiescent current is also attractive to low power designs.The NCP59749MN2ADJTBG is also well suited to industrial, medical, and automotive applications requiring a low noise, low dropout output. It can be used to power micro-controllers, memories, and other digital ICs in these applications.

Pinout

The NCP59749MN2ADJTBG is a 3-pin device featuring an adjustable output voltage and two GND pins, as shown in the following diagram:

Working Principle

The NCP59749MN2ADJTBG is a low voltage, low noise, low dropout linear voltage regulator. It is designed to ensure that the output voltage is set to and remains at the level set by the voltage adjustment terminal.The main components of the device are an N-channel MOSFET, a precision reference, a bandgap reference, and a control circuitry. These components are interconnected in a feedback loop and work together to regulate the output voltage.When the input voltage is greater than the output voltage, the MOSFET is turned on and current flows from the input to the output, charging the output capacitor. As the output voltage rises, the difference between the input voltage and the output voltage (Vin - Vout) increases, causing the MOSFET to turn off and current to cease flowing. This process continues until the difference is reduced to a set point and the output voltage is regulated.

Advantages

The main advantages of the NCP59749MN2ADJTBG are its low dropout voltage, low noise output, excellent line and load regulation, low temperature drift, and low quiescent current. Its simple 3-pin structure allows space savings in applications such as automotive and industrial control systems, and its wide input voltage range makes it an ideal choice for battery-backed systems and other portable devices. The low quiescent current also makes it ideal for low power designs.

Conclusion

The NCP59749MN2ADJTBG is a low-voltage, low-noise, low-dropout linear voltage regulator designed for powering small loads while operating with a wide input voltage range. Its simple 3-pin structure and wide input voltage range make it ideal for automotive, industrial, and medical applications, as well as for battery-backed systems and other portable devices. Its excellent line and load regulation, low temperature drift, and low quiescent current make it a good choice for powering micro-controllers, memories, and other digital ICs.

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