LMR14050SQDDARQ1

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The LMR14050SQDDARQ1 is a DC/DC switching regulator that is part of the LMR14000 series of high-efficiency synchronous step-down voltage converters developed by Texas Instruments. This family of synchronous switching regulators is designed to reduce the size, component count and cost of modern, low-voltage power supply designs. The LMR14050SQDDARQ1 provides a 5A continuous-mode current limit and features protected input voltage, adjustable output voltage, soft start and output over-current protection capabilities.

A general application of the LMR14050SQDDARQ1 is as a step-down voltage converter. This device accepts an input voltage, typically from a battery source, and steps it down to a lower, regulated voltage. This regulated voltage is then used to power various electronic components, such as microcontrollers, FPGAs, sensors, etc. This device is well-suited for powering devices that require both high input voltage tolerance and reliable, accurate output voltage regulation.

The LMR14050SQDDARQ1 is a synchronous buck regulator. In a synchronous buck regulator, the ground-referenced input voltage is converted to a higher potential by an inductor and then stepped down to the desired regulation voltage before the output current passes through the inductor. The high potential is referred to as a high-side switch and the low potential as a low-side switch. The high and low switches alternately turn on and off at different frequencies, allowing the inductor to store and release energy while controlling the output current.

The LMR14050SQDDARQ1 also includes a thermal shutdown feature. This feature is designed to protect the device from overheating, which can cause permanent damage. The thermal shutdown feature is triggered when the operating temperature of the device exceeds a preset temperature. When the thermal shutdown feature is triggered, the device will cease operation and require a manual restart.

In addition, the LMR14050SQDDARQ1 provides output over-current protection. This feature is designed to protect the device from overcurrent, which can also cause permanent damage. The over-current protection feature is triggered when the output current exceeds a preset threshold. When the over-current protection feature is triggered, the device will cease operation and require a manual restart.

The LMR14050SQDDARQ1 also includes a soft start feature, which is designed to help minimize inrush currents. This feature is useful in applications that require a smooth startup, such as when powering motors or other sensitive loads. The soft start feature will slowly increase the output voltage over a preset period of time, allowing the load to gracefully ramp up.

The LMR14050SQDDARQ1 is a member of the LMR14000 series of efficient synchronous step-down voltage converters developed by Texas Instruments. This device accepts an input voltage, typically from a battery source, and steps it down to a lower, regulated voltage. This regulated voltage can then be used to power various electronic components. This device offers high input voltage tolerance, reliable, accurate output voltage regulation, protected input voltage, adjustable output voltage, soft start, thermal shutdown and output over-current protection capabilities.

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