ADP2126-1.2-EVALZ

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The ADP2126-1.2-EVALZ is a high-performance, synchronous, step-down, DC/DC converter featuring an integrated low-side MOSFET and integrated compensation. A 3.3 V start-up voltage makes it an easily implemented component in a wide range of consumer, industrial, and telecom applications.

This evaluation board is a compact square PCB measuring 20 mm X 20 mm, with 6 mm thickness. It has a provision for a single input voltage (4.5 V to 14 V) and a single output voltage (1.2 V ± 2%). It has integrated input EMI filter components, to facilitate compliance with EMI standards. The board supports over-voltage protection (OVP) and under-voltage lockout (UVLO). The board also features an adjustable soft-start.

In terms of application fields, the ADP2126-1.2-EVALZ evaluation board can be used for applications such as PCs, notebooks, netbooks, home networking routers, modems, cellular base stations, automotive, telecommunications, industrial power supplies, medical equipment, home entertainment, white goods, set-top boxes, and smart meters. It is especially useful for applications requiring wide temperature operation and medium- to high-power output stages.

The working principle of ADP2126-1.2-EVALZ evaluation board is based on the synchronous rectification topology, which employs two MOSFETs (n-channel and p-channel) for the conversion process. It implements the buck converter architecture, which comprises the input, the conversion stage, the output stage, and the control block. The inputs are the input voltage, the enable pin, and the soft-start pin. The control block consists of the voltage loop control which employs a voltage feedback across the load to maintain a stable output voltage. The ADP2126-1.2-EVALZ also incorporates ripple cancellation. This is done by the modulating converter which regulates the output voltage through the use of a PWM signal. The synchronous rectification method efficiently converts the DC input voltage into a DC output voltage without utilizing any switching elements.

ADP2126-1.2-EVALZ evaluation board exhibits very high efficiency levels up to 95%. This is achieved by its high conversion frequency of up to 1 MHz, and the integration of an integrated low-side synchronous MOSFET. The integrated compensation maintains good transient response. Additionally, its fast current-limit protection circuit ensures maximum reliability and safety. The board\'s mechanical robustness meets the requirements of all standards, making it the ideal choice for a wide variety of consumer, industrial, and telecom applications.

In conclusion, the ADP2126-1.2-EVALZ evaluation board is an excellent choice for a wide range of DC/DC & AC/DC (Off-Line) SMPS applications. It is a compact, cost-effective solution which offers high efficiency levels, a wide operating temperature range, and high electrical and mechanical robustness. Its integrated low-side MOSFET coupled with a fast current-limit protection circuit provides excellent reliability and safety. With its adjustable soft-start and ripple cancellation features, it represents an ideal choice for applications in many industries.

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