UCC28702DBVR

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The UCC28702DBVR is a DC-DC converter device from Texas Instruments. It is a synchronous buck converter with a fixed 3 A output current limit, an internal PWM comparator, and a maximum 2.8 V output voltage adjustment range. The UCC28702DBVR is suitable for portable and battery-powered applications such as laptop computers, cell phones, PDAs, and digital still cameras.

The UCC28702DBVR’s main feature is its synchronous buck-regulator architecture. The device has an internal pulse-width-modulated (PWM) COMP pin, which is used to control the output voltage via an external control loop. The current limit is set by the external resistor connected to the CP pin. The UCC28702DBVR contains an on-board voltage reference, which is used to adjust the output voltage to a desired level.

The UCC28702DBVR is designed to work in input voltage range from 4.5V to 30V and can generate output voltages up to 2.8V with a maximum output current of 3A. Its wide range of input voltage and output voltage capability makes it an ideal device for applications that require power from a variety of sources and loads.

The UCC28702DBVR is an offline switcher that can be used for various applications. One example of an application is the conversion of a 28 V unregulated supply to a 5 V regulated DC supply. The UCC28702DBVR can be used in this application by connecting the supply voltage to the EN and SW pins, and the output voltage to the VS and FW pins. The control loop is then established with an external resistor connected to the COMP pin to set the output voltage.

Another application for the UCC28702DBVR is the generation of a 3.3 V regulated output from a 5 V regulated source. This can be achieved by connecting the 5 V regulated source to the EN and SW pins and the 3.3 V output voltage to the VS and FW pins. The current limit is then set by the external resistor connected to the CP pin.

In summary, the UCC28702DBVR is a synchronous buck converter from Texas Instruments that is suitable for a wide range of applications, including the conversion of an unregulated input voltage to a regulated output voltage, and the generation of a regulated output voltage from a regulated source. The device is easy to configure and has an on-board voltage reference and a fixed 3A output current limit, making it an ideal device for portable electronic products.

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