TPS60400DBVR

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The TPS60400DBVR is a high-performance, single-channel, step-down DC-DC regulator with integrated circuit protection. It can be used to supply a wide range of applications, from cell phones to automotive systems. The integrated device includes a buck regulator, voltage reference, enable, and protection circuitry. The TPS60400DBVR delivers up to 6A at a maximum operating frequency of 1.2MHz and can operate from a wide input voltage range of 2.4V to 20V.

The operation of the device begins with the input voltage being converted to an internal fixed reference voltage of 0.6V. This 0.6V reference is then compared to the voltage at the voltage feedback pin. The difference between the two voltages is then amplified and used to drive the switching element which then determines the duty cycle of the buck regulator.

The buck regulator works by maintaining a fixed voltage difference across the inductor to ensure a constant output current and voltage. The output voltage is controlled by the voltage reference and feedback resistor network. The current through the inductor is then limited by the maximum switching frequency set by the external frequency adjustment pin.

The TPS60400DBVR also features integrated circuit protection to protect against over-voltage, over-current, and short-circuit conditions. It also has a thermal shutdown protection circuit to protect the device from overheating by increasing the switching frequency. Additionally, the device can be disabled externally by an active-low enable input.

Overall, the TPS60400DBVR is an ideal solution for applications that need a reliable, high-performance, single-channel step-down DC-DC regulator with integrated protection. It is a highly integrated device that is easy to use and provides the flexibility to meet a wide range of applications including but not limited to, cell phones, portable electronics, industrial and automotive systems.

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