ADP166UJ-EVALZ

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The ADP166UJ-EVALZ evaluation board is a high-efficiency, low-cost, linear voltage regulator designed to provide up to a maximum of 1.8 A continuous current at output voltages ranging from 1.8 V to 5.5 V. It is part of Analog Devices\' linear regulator product line. The ADP166UJ-EVALZ evaluation board provides the user an opportunity to experiment with its features and capabilities before integrating it into a design.

The ADP166UJ is a low-dropout linear voltage regulator, designed to convert inputs from 4.5 V to 16 V to outputs between 1.8 V and 5.5 V. This regulator is specially designed to run at low current dissipation levels and has a high efficiency of up to 96%. It is ideal for use in tightly regulated voltage supplies for microprocessors, DSPs, FPGAs, and ASICs.

The signal paths and power connections of the ADP166UJ-EVALZ evaluation board are laid out on the board in line with the layout of products in production specialized in voltage models. This layout enables a high level of performance and easy integration into final applications. The board also features an SMD jumper which can be used to enable/disable the LDO\'s power conversion and provide a convenient way to program the regulator’s output voltage.

The working principle of the ADP166UJ-EVALZ evaluation board relies on its linear voltage regulator. It uses an adjustable output-voltage series pass regulator, which is composed of two components: an error amplifier and a series pass transistor. The signal path of the ADP166UJ-EVALZ evaluation board begins with the input voltage, which is followed by the error amplifier and series pass transistor. The error amplifier is a comparator type of circuit that compares the output voltage with a predetermined reference voltage. If the Error amplifier finds the output voltage to be too low, it drives the gate of the series pass transistor to allow more current to pass through providing higher voltage.

When the output voltage reaches the predetermined reference voltage, the error amplifier reduces the gate voltage of the series pass transistor to decrease the amount of current passing through it. This mechanism results in a voltage output which follows the predetermined reference voltage and provides precise control of end-product regulator voltage with no external components. With the ADP166UJ-EVALZ evaluation board, the output voltage can be easily adjusted by enabling/disabling the SMD jumper and setting the output voltage values.

The ADP166UJ-EVALZ evaluation board is an efficient and reliable linear voltage regulator with all necessary components already in place to easily incorporate into an application. With its adjustable output-voltage series pass regulator, the target voltage can be precisely regulated, and also the high-efficiency ensures long-term reliable operation. Its potential applications range from telecom supply systems, to microprocessor/DSPs, to audio amplifiers and digital media devices, and makes it a fine choice when it comes to Linear Voltage Regulators.

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