TPS71745QDCKRQ1

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The TPS71745QDCKRQ1 is an integrated linear regulator specifically designed for low current, low noise and adjustable output in surface-mount packages. This family of parts combines a high performance operational amplifier with a low dropout voltage regulator and is ideal for use in ON/OFF and remote sensing circuits. They can be used to regulate output voltages from 0.8V up to 17V.

Application Field

TPS71745QDCKRQ1 can be used in many different applications due to its wide range of output voltages and high efficiency. The adjustable output feature makes this part a very versatile solution for different types of voltage regulation. It can be used in ON/OFF circuits in order to maintain precise control of an output voltage while providing minimal current draw. It is a great choice for use in instrumentation, displays, and communications devices. The low voltage dropout feature makes this regulator ideal for low power applications when input and output voltages are close.

Working Principle

The working principle of the TPS71745QDCKRQ1 is based upon a negative feedback loop. The feedback loop is controlled by an operational amplifier (op-amp), which receives input from the feedback network. In a simple configuration, the operational amplifier sets the output voltage to the desired level by controlling the current in the output pass transistor. If the voltage on the output is higher than the target voltage, the op-amp decreases the base current of the pass transistor, lowering the output voltage. If the voltage on the output is lower than the target voltage, the op-amp increases the base current of the pass transistor, raising the output voltage. The op-amp ensures that the output voltage remains at the target voltage even when there are changes in the input voltage or output current.

By combining a high-performance operational amplifier with a low dropout voltage regulator, the TPS71745QDCKRQ1 is able to provide a precise and stable output voltage with minimum power consumption. With its high efficiency and adjustable output feature, this part is an excellent choice for a wide variety of applications.

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