UCC3803N

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The UCC3803N DC/DC Switching Controllers from Texas Instruments are a range of highly efficient and lower-power controllers used for voltage regulation. With onboard MOSFETs, these controllers provide low voltage standstill with fast transient response, low noise operation and precise output voltage.

UCC3803N controllers are compatible with a variety of inductor designs, and can be used for a wide range of applications. They feature precise power regulation and precise output current limiting, making them suitable for use in automotive, industrial and medical applications. The UCC3803N is capable of controlling multiple outputs, making it perfect for designs needing full power and thermal management.

UCC3803N controllers feature a wide input voltage range from 2.6V to 38V and an operational temperature of -40°C to 125°C. The controller has a typical operating quiescent current of just 0.4mA, making it suitable for low power applications. It also features programmable overcurrent threshold and output voltage, as well as programmable current sense resistor. It also has a programmable soft start feature to minimize inrush current and output overshoot.

The UCC3803N device’s working principle is based on the control of the supply voltage through on-board MOSFETs. The controller monitors the output voltage by internally comparing it with a reference voltage. The MOSFETs then act to keep the output voltage at the desired level by changing the duty cycle of the power supply. This is maintained by the controller’s constant voltage and current regulation loop.

The UCC3803N is an ideal solution for controlling voltage in automotive, industrial, and medical applications. It features high efficiency, low quiescent current and precise output voltage control, making it ideally suited for designs with multiple outputs and needing full power and thermal management. The UCC3803N\'s wide input voltage range also makes it suitable for designs that require flexibility and a robust output.

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