TC1306R-BDVUATR

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The TC1306R-BDVUATR is an integrated linear voltage regulator designed to provide regulated output voltage, either fixed or adjustable, higher than the input voltage. It contains a voltage reference, an error amplifier, and power pass transistor, usually an NMOS/PMOS for high current output.The TC1306R-BDVUATR is used in a variety of applications, such as power supplies for various system needs, including the powering of microcontrollers, DSPs, FPGAs, AC/DC converters and other precision power requirements.

The TC1306R-BDVUATR is relatively simple in design and requires only two external components, capacitor C1 for stability and capacitor C2 for output filtering. The device has low quiescent current, with 10 μA typ and 35 μA max, and low dropout voltage.

In terms of its working principle, the key element of a linear voltage regulator is its error amplifier. It is a comparator whose non-inverting input is connected to the adjustable or fixed output voltage programming via a potential divider network. Its inverting input is then connected to the output to form a negative feedback loop. This control loop causes the error amplifier to compare the two source voltages and adjusts the gate voltage of the pass transistor to bring the two voltages into balance. Depending on the output current the regulator is required to deliver, thermal protection may be implemented to shut off the output voltage when the current gets too large.

Linear voltage regulators are usually used in circuits where supply voltages are relatively low and increase efficiency and reduce noise as compared to switching regulators. This makes them well suited for use in supplying precise power to microcontrollers, DSPs, FPGAs, AC/DC converters and other precision power requirements. Furthermore, they have the benefit of being relatively simple to design into a circuit, due to the low number of components required, the ease of setting up the reference voltage, and their ability to handle large output currents.

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