LMS36553QRNLRQ1

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Part Status:	Active

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Overview

The LMS36553QRNLRQ1 is a high performance DC-DC switching regulator designed to supply power to digital systems and microprocessors that require highly stable output voltage. It is designed to provide a low on-resistance switch which can handle up to 25A current, making it suitable for high power applications. The device has a wide input voltage range, a high converter efficiency and accepts a wide variety of input and output power supply configurations.

Application Fields

The LMS36553QRNLRQ1 is generally used in portable electronic devices, such as laptop computers, notebooks, and tablets, where flexible voltage control and low noise operation is required. The low noise operation is due to the low on-resistance switch, which helps eliminate EMI (electromagnetic interference). The device is also suitable for other applications such as Power Delivery (PD) and Point of Load (PoL) systems. The device can also be used as a DC-DC converter for automotive and industrial applications, where high power and efficiency are necessary.

Working Principle

The LMS36553QRNLRQ1 utilizes two MOSFETs to create an on/off switch. The first MOSFET is turned on to charge the output capacitor, thereby providing the required output voltage. The second MOSFET is then turned off, allowing the current to flow freely through the inductor. The MOSFET is then turned off, stopping the current flow, and creating a pulse width modulation (PWM) signal. The PWM signal is then used to control the output voltage, allowing precise voltage regulation.The LMS36553QRNLRQ1 is designed to provide a high conversion efficiency and low power dissipation. The device has a low on-resistance switch, which helps reduce losses caused by switching events. The device also includes protection features such as overvoltage protection, undervoltage lockout, and over temperature shutdown, which help ensure that the device operates within its desired voltage parameters.

Conclusion

The LMS36553QRNLRQ1 DC-DC switching regulator is an efficient and reliable device designed to provide a low on-resistance switch and precise voltage regulation. The device is suitable for a variety of applications, including laptop computers, tablets, automotive and industrial applications. The device also features protection features, making it suitable for use in high powered applications.

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