LMR14050SDDAR

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The LMR14050SDDAR is a buck switching regulator designed for the most demanding needs. This high-efficiency, low-dropout voltage regulator offers excellent transient response and ultra-low noise, making it an ideal choice for applications needing rich power supply performance. The device is also packed with a wide range of features, including over-voltage protection, programmable soft start and a wide-range input voltage capability.

The LMR14050SDDAR is a synchronous step-down DC/DC switching regulator with a 1.2 A output current capability, and a wide-range input voltage of 4 V to 20 V. It features an internal high-side and low-side synchronous MOSFET, allowing it to achieve high efficiency and excellent ripple performance, even with minimal external components. The device is also equipped with a programmable soft start, allowing it to gently bring up the output voltage level in an adjustable fashion, minimizing inrush current.

The main advantage of using a buck switching regulator is that it helps to keep the input voltage within an optimal range. This ensures that the device is operating efficiently and at peak performance, thus resulting in better performance with respect to noise and power supply performance. It is also significantly smaller in size compared to linear voltage regulators, and can provide a wide range of output voltages, from 0.75 V to 4 V.

The LMR14050SDDAR is designed for use in a variety of applications including automotive, industrial, and portable systems. It is also well suited for wide range DC/DC system in distributed power architectures. Due to its low dropout voltage, tight Transient Line Regulation (TLR) performance, and excellent load and line regulation, it is ideal for systems needing to provide stable voltage levels to different components.

The device provides several features to optimize power supply performance, such as over-voltage protection, internal soft start, and shutdown features. The over-voltage protection ensures that the output voltage never exceeds the programmed level, thus preventing the possibility of damage to the output. The Soft Start feature helps to gradually increase the output voltage level, minimizing the power supply inrush current. The shutdown feature protects the regulator and the system-on-chip (SoC) from potential damage due to input voltage transients.

The LMR14050SDDAR switching regulator has the additional benefit of high efficiency, allowing for power savings and improved thermal performance. Efficiency in a buck regulator is determined by the ratio of output current to input current, and the ratio of output voltage to input voltage. The higher efficiency is achieved thanks to the use of synchronous MOSFETs, a low dropout voltage and internal soft-start, helping to reduce power losses in the power supply.

Overall, the LMR14050SDDAR is a highly efficient and flexible DC/DC switching regulator, capable of providing stable and accurate voltage levels to a variety of applications. With its low noise and high efficiency, along with its over-voltage protection and programmable soft-start, it offers designers a host of features to create a power supply that delivers the highest level of power supply performance.

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