ADP7118CP-EVALZ

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Evaluation boards are used for many applications, and linear voltage regulators are among them. This article will discuss the application field and working principle of the ADP7118CP-EVALZ evaluation board. This board is used to evaluate the performance of an adjustable voltage-regulating linear regulator, the ADP7118CH, which is available in a 10 Ld TSOT package. The board has an ADP7118C, a step-down DC-DC converter with an input voltage range from 1V to 28V, an output voltage range from 0V to an adjusted voltage, and a maximum output current of 1A.

The board is ideal for designing, developing, and testing step-down DC-DC converter applications. It’s typically used with a DC supply, either AC or DC, and can be connected to any external power source. The board is perfect for applications including, but not limited to, power management, instrumentation, remote communication, regulation, and control. Compared to other evaluation boards, the ADP7118CP-EVALZ is particularly well-suited for applications that require regulated voltage within an adjustable range.

The ADP7118CH is the main component of the evaluation board. It has several features that make it stand out, such as a 600mV dropout voltage for very low current consumption and external power control via PMOS or PNP transistors. The board also includes a fast transient response, power-saving mode, current-mode control, and adjustable voltage. Additionally, the board has an over-voltage protection (OVP) that helps to prevent damage from an over-voltage input.

In terms of the working principle of the ADP7118CP-EVALZ evaluation board, the board is based on a buck converter, also known as a step-down DC-DC converter. It converts the incoming voltage from the power supply down to the required output voltage. The duty cycle of the power switch in the buck converter, which is known as the switching element, is controlled to maintain the desired output voltage. The feedback voltage of the output is compared to a reference voltage, and this comparison is used to control the power switch.

In the ADP7118CH, the output voltage can be adjusted from 0V to a maximum of 28V. This is done by adjusting the feedback voltage to the reference voltage. If the output voltage needs to go higher than 28V, an external resistive voltage divider can be used. The ADP7118CH has a frequency of up to 1MHz and an internal soft-start that eliminates any current spikes. The board also has a power-saving mode and fast transient response that provide a smooth output voltage. The board is protected by an OVP that prevents any damages from an over-voltage input.

In conclusion, the ADP7118CP-EVALZ evaluation board is an ideal tool for those who are looking to evaluate the performance of the ADP7118CH adjustable voltage-regulating linear regulator. This board can be used for many applications, including power management, instrumentation, remote communication, regulation, and control. The board is based on a buck converter, and the output voltage can be adjusted from 0V to a maximum of 28V without any modifications. The ADP7118CH also features a power-saving mode, fast transient response, and OVP that helps to prevent damage from an over-voltage input.

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