S-8354A50MC-JRJT2G

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The S-8354A50MC-JRJT2G is a synchronous step-down DC/DC converter IC with an adjustable output voltage range of 0.8V to 5.5V and a maximum output current rating of 6A. It is designed for automotive applications that require protection from over-current, over-voltage and thermal shutdown. The chip integrates a constant on-time (COT) control method, allowing for a small output capacitor and low external component count. It also features a built-in 15V clamp to protect the output from transient voltage surges, eliminating the need for an external clamp transistor.

The S-8354A50MC-JRJT2G is designed for various automotive applications such as power train, body control and multimedia. The chip can be used to power loads such as sensors, RF transceivers and other ICs. It is also suitable for battery or bus power supplies in automotive systems.

The S-8354A50MC-JRJT2G has a highly integrated architecture consisting of an adjustable constant-on-time (COT) Buck converter and a linear regulator. The integrated Buck converter is capable of delivering 6A at a precise output voltage within a range of 0.8V to 5.5V. It has a typical switching frequency of 625kHz and utilizes a synchronous rectification design with a low standby current of less than 1μA. An adjustable soft-start time is available to prevent circuit from inrush current. It also has an adjustable current limit to protect the chip from overloads. An internal clamp voltage of 15V is provided to prevent circuit from voltage spikes.

The S-8354A50MC-JRJT2G also provides a linear regulator with a low drop-out voltage of 150mV. This regulator is capable of delivering up to 6A of output current. It has a wide input voltage range of 4.5V to 50V, which makes it suitable for automotive applications that require a low drop-out voltage and high output current capability.

To further enhance the protection, the S-8354A50MC-JRJT2G has integrated protection features such as over-current, over-voltage and thermal shutdown protection. An adjustable input under-voltage lockout helps to prevent the chip from malfunction during start-up conditions. The chip also has an adjustable soft-start time to limit the inrush current during power up.

In summary, the S-8354A50MC-JRJT2G is a highly integrated DC/DC converter IC specially designed for automotive applications. It features an adjustable constant on-time (COT) synchronous buck converter with a low shutdown current and an integrated linear regulator for high output current. The chip also provides protection from over-currents, over-voltages and thermal shutdowns, as well as an adjustable input under-voltage lockout to ensure safety. It is perfect for various applications such as powertrain, body control and multimedia.

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