TPS53819ARGTR Integrated Circuits (ICs)

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TPS53819ARGTR is a high voltage synchronous step-down DC-DC buck controller that belongs to the Power Management Integrated Circuit (PMIC) family of voltage regulators and DC-DC switching controllers. It is a single-channel device with a dedicated low-side MOSFET. This advanced device has been developed for low cost and low power applications.

The TPS53819ARGTR offers greater efficiency and superior power savings for a wide range of voltage buck applications, such as telecom, industrial, consumer and automotive applications. It is highly integrated with many built-in features and offers multiple adjustable currents and voltages. It is easy to use, which makes it ideal for low cost and low power applications. Furthermore, it has a wide range of operating current, which eliminates the need for external pass transistors and increases the frequency of operation to reduce the overall size of the system.

The device can be configured in synchronous buck mode or step-down topology. It integrates an advanced driving FET gate control circuit that provides the necessary gate drive voltage to control the current through the inductor. To ensure a smooth transition during the turn-on and turn-off of the FET, the time delay between the drain switching events is adjustable using a single cycle clock. The frequency of operation is adjustable using the Pulse Width Modulation (PWM) pin. Through the multi-level current limits, the maximum output current is limited.

This device also offers several other features such as under voltage lockout, over voltage protection, over temperature protection and soft start capacitor. The over temperature protection monitors the junction temperature and shuts down the switching when temperature reaches its upper limit. The under voltage lockout ensures that the output voltage does not fall below its regulation point. In addition, the soft start capacitor provides a smooth turn-on for the device.

The on-board integrated current sensing circuit gives precise over current protection. In excess current limit, the device will be shut down to protect the system. The current limiting is adjustable with a single external resistor and the output current is adjustable with a sense resistor.

The TPS53819ARGTR is a highly integrated Power Management IC with features to ensure a reliable control of the output voltage. It is designed to offer low cost and low power applications. The device is ideal for telecom, industrial, consumer, and automotive applications.

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