NCP81245MNTXG

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	Controller, Intel IMVP8
Voltage - Input:	4.5 V ~ 20 V
Number of Outputs:	7
Voltage - Output:	--
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	52-VFQFN Exposed Pad
Supplier Device Package:	52-QFN (6x6)

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Introduction

The NCP81245MNTXG is a Special Purpose integrated circuit for voltage regulation. It is part of the PMIC (Power Management Integrated Circuit) family. This voltage regulator differs from traditional voltage regulating circuits due to its advanced techniques, improved efficiency, and low standby losses. The NCP81245MNTXG is suitable for applications such as automotive systems, where the system needs a high level of performance, reliability, and low energy consumption.

NCP81245MNTXG Application

The NCP81245MNTXG is an ideal solution for automotive systems, where a wide supply range, high efficiency, low losses, EMI emission reduction and reliable performance are necessary. It is also suitable for other applications such as battery-powered systems and power supplies, where a wide input voltage range, low conduction losses and low component count are important.This device can be used as an ideal replacement for legacy voltage regulators, offering improved performance, lower conduction losses and high current output. It is an effective, cost-efficient solution for systems with wide voltage ranges, low conductance losses and low component count requirements.The NCP81245MNTXG output voltage range is adjustable from a minimum of 0.8V to a maximum of 5.25V, with a peak output current of 7A and a continuous output current of 3.25A. The device also has robust protection and failsafe mechanisms, built-in output over-current and over-voltage protection, as well as over-temperature protection and phase-shift control for improved efficiency.

NCP81245MNTXG Working Principle

The NCP81245MNTXG regulator circuits use a combination of two power FETs (field effect transistors) to provide a highly accurate, low losses and low noise voltage regulation. The FETs are connected in parallel, with each FET being connected to a different corner of the power supply\'s triangle waveform. The FETs are connected such that one is connected to the supply’s rising flank, the other to the falling flank. The triangle waveform is then filtered through inductor-capacitor (LC) networks to provide a more linear output voltage, while the FETs respond to the duty cycle of the triangle wave and regulate the output voltage by controlling the on and off time of each device.The circuitry also includes an Over-Current and Over-Voltage protection system that monitors the output current and voltage and shuts off the regulator if it senses over-current and over-voltage conditions. The device also includes an Over-Temperature protection circuit that triggers when the junction temperature exceeds the specified value, protecting the regulator from excessive temperatures.

Conclusion

The NCP81245MNTXG is a versatile, reliable and efficient integrated circuit for voltage regulation. It is suitable for applications such as automotive systems, battery-powered systems and power supplies, where high efficiency and low losses are desirable.The NCP81245MNTXG regulator circuit combines two power FETs, an LC filter network and robust protection features to provide a highly accurate voltage regulation output. It is an ideal replacement for legacy voltage regulators, offering improved performance and reliability, lower conduction losses and high current output.

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