TPS60403DBVRG4

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TPS60403DBVRG4 is a DC/DC Switched Mode Power Supply (SMPS) that belongs to the PMIC (Power Management IC) family. It is a step-down converter specifically designed for high efficiency, low noise and low power applications. This device is mainly used in personal media players, digital cameras, and other portable devices.

The TPS60403DBVRG4 is designed to operate from a wide input voltage range of 4.5 V to 24 V with a minimum operating current of only 25 mA. It has an adjustable fixed output voltage of 0.8V to 3.3V and offers a variety of protection features such as thermal shutdown, over-voltage protection, short circuit protection, and open loop output voltage. Furthermore, it also includes a low battery detect feature and offers up to 95% efficiency.

The working principle behind the TPS60403DBVRG4 is quite simple. All the power related components such as the rectifier, filter capacitor, optocoupler and power transistor are integrated within the package to form an isolated switching power supply. When powered, the optocoupler is triggered and turns on the power transistor. The power transistor is then used to switch the power supply in a very rapid manner, which allows for high efficiency power conversion. The power transistor works inversely proportional to the output voltage, thus allowing the output voltage to be modified by changing its gate voltage.

To conclude, the TPS60403DBVRG4 is an ideal solution for high efficiency, low noise and low power applications requiring an adjustable fixed output voltage. Its wide input voltage range and integrated protection features make it very reliable and easy to use. Furthermore, with its simple working principle, it is easy to use and adjust the output voltage accordingly.

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