TPS54395RSAT

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Texas Instruments’ TPS54395RSAT voltage regulator offers designers a highly efficient, robust and reliable switching mode power supply for advanced applications. The device provides a wide-input voltage range that makes it ideal for a variety of applications, such as industrial, telecommunication, computing, automotive and consumer-electronic end products.

This next-generation device features a single-stage DC-DC switching regulator that provides a regulated output voltage of 1.8V with a 5A maximum continuous load current. It is designed to maintain a constant, stable output over a wide range of input and load conditions. The high efficiency of the device allows it to operate in the most demanding conditions and offers superior thermal performance, allowing for even greater reliability and power savings.

The TPS54395RSAT is a current mode synchronous buck (step-down) regulator with an on-board Rectifier/Driver IC that provides a high-voltage, current-mode controlled conversion from an input voltage of 21.6V to an output voltage of 1.8V. The device features an adaptive on-time, hysteretic control loop with an active bandgap reference for accurate regulation and transient response. It has an active-low enable pin and an internal power switch that can be used to turn the device on and off. The device also features an adjustable soft-start time (± 25%) to prevent inrush current and minimize output voltage overshoot.

The device integrates several advanced features to enhance user experience, such as cycle-by-cycle current limit, thermal shutdown, and overvoltage protection, to name a few. It also supports the use of an external voltage divider or feedback resistor to adjust the output voltage.

The TPS54395RSAT is ideally suited for applications where low-cost, high-efficiency, wide-input voltage range and superior reliability are paramount. The device is available in a space-saving RoHS-compliant Environmentally-friendly Package (EP) and it is fully specified over the -40°C to +85°C temperature range.

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