SC4626ESKTRT

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The SC4626ESKTRT is a synchronous step-down regulator controller ideal for wide range of compact Point-of-Load (PoL) applications. It is designed with a wide input supply range that enables it to operate in a multitude of applications, including automotive and AC/DC rectifier systems, while also delivering up to 4A of output current. Its primary purpose is to provide exceptional power conversion performance in power-supply modules and other applications requiring very fast transient response, wide-input voltage range in order to generate small amounts of energy.

The SC4626ESKTRT is an excellent choice for Switch Mode Power Supply (SMPS) design since it has features such as fast transient response, wide-input voltage range, small size, and low power consumption. It also comes with output current regulation which allows for load current to stay within the design limit even during extreme load variations. The internal high-speed voltage regulator loop minimizes the output voltage ripple, contributing to the high-quality output voltage power supply.

The device contains an integrated logic-controlled Power-ON Reset (POR) circuitry which facilitates the initiation of the device and system’s safe startup. The over-voltage and under voltage protection (OWVP and UVLO) helps prevent the external circuit from damage in case of over-voltage or under-voltage conditions. Other features such as output short circuit protection and 500kHz switching frequency helps to reduce the power consumption, saving energy and stability.

In terms of working principle which can be best summarized as a synchronous buck (step-down) regulator, the SC4626ESKTRT uses a fixed-frequency (500kHz) switching operation. The switching of the MOSFETs is driven by a 4-level synchronous driver and it also integrates a dynamically adjustable oscillator, operated from an external clock or system clock, between 350 kHz and 800 KHz, allowing for more flexibility in system design. Current is sensed at the output in order to maintain the desired regulation.

The advanced design of the SC4626ESKTRT makes it an ideal choice for a wide range of applications, including portable, desktop, vehicular and telecom applications. It provides efficient, stable, and reliable power conversion, optimized for space-constrained applications. The full-featured device ensures a smooth and successful power supply design, with lower cost and higher efficiency. The SC4626ESKTRT is also a perfect device for industrial applications that require high precision and accuracy.

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