LMS36353QRNLRQ1

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The LMS36353QRNLRQ1 is a power management integrated circuit (PMIC) voltage regulator, specifically categorized into a DC DC switching regulator. The regulator is designed for a variety of applications, delivering power conversion and control solutions with enhanced performance and efficiency. This article will discuss the various application fields, working principle and technical functionalities provided by this regulator.

Application Fields

The LMS36353QRNLRQ1 is designed for use in a variety of applications, including industrial electronics, automotive and consumer electronics. Its high efficiency, low quiescent current draw, high reliability and minimal load current, makes it suitable for all kinds of power-supply requirements, especially when power saving is the primary objective. It is suitable for applications such as mobile phones, digital cameras and laptops, and may also be used in automotive audio, home entertainment and mobile devices applications.

The regulator is also designed to provide superior operation when the input voltage is over 600V, making it suitable for in-vehicle entertainment systems, EVs and HEVs.

Working Principle

The LMS36353QRNLRQ1, like other switching DC DC regulators, operates on the principle of pulse width modulation (PWM). This works as follows: the regulator controls the on-off cycles of a switch in order to control the amount of power drawn from the input voltage source, and then transfers this power to the output voltage. This process is known as ‘pulse width modulation\' as the cycle frequency of the switch is proportional to the input voltage. This means that the cycle frequency can be controlled depending on the desired output voltage.

On each cycle, the maximum time the switch is open is determined by the desired output power and the effective on-resistive losses of the transistor. The on-time and off-time for each cycle is adjusted to maintain a constant voltage and power output. This regulation is made possible by the onboard controller, which is constantly measuring the output voltage to ensure that it remains in line with the target voltage.

Technical Functionalities

The LMS36353QRNLRQ1 provides superior performance when compared to other DC DC switching regulators. It has a peak efficiency of up to 95%, which contributes to the regulator’s high reliability and power savings. With a robust transient response, the regulator is also suitable for applications that require quick and reliable power delivery. It features an adjustable output voltage range of 3.3V-15V, adjustable OCP and OVP, a programmable soft-start, pre-bias start-up and low quiescent current.

The regulator also benefits from low noise operation and improved system stability. It is designed to provide improved thermal management, thanks to its small package and low internal power dissipation. Furthermore, the device is configured with protection features, including over-voltage protection, over temperature protection and short-circuit protection, to ensure safety in all applications.

In addition, the regulator has a high EMI/RFI performance, allowing for a more efficient and reliable power management solution. The device also has a fast dynamic response, which helps reduce system size and complexity, and minimizes start-up time.

Conclusion

The LMS36353QRNLRQ1 PMIC DC DC switching regulator is designed for use in a variety of applications, from industrial electronics to automotive to consumer products. It features an adjustable output voltage range of 3.3V-15V, adjustable OCP and OVP, a programmable soft-start, pre-bias start-up and low quiescent current. With a peak efficiency rating of up to 95%, fast dynamic response and improved system stability, the regulator provides excellent power management solutions. Furthermore, the device is configured with protection features, including over-voltage protection, over temperature protection and short-circuit protection, to ensure safety in all applications.

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