S-8337AACC-P8T1G

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The S-8337AACC-P8T1G is a DC / DC switching controller from ROHM Semiconductor, a trusted leader in the semiconductor market. This controller is part of ROHM\'s PMIC – Voltage Regulators – DC/DC Switching Controllers product line. It is a versatile solution designed to offer optimized efficiency and provide a simple solution to power system designs.

This non-synchronous buck converter integrates a power MOSFET and bootstrap diode, allowing users to easily realize a low-cost DC-DC solution. Additionally, the IC integrates a low-side current sensing amplifier. This amplifier measures the load current and can be used to reduce power consumption by improving efficiency.

The S-8337AACC-P8T1G has an output voltage range from 2V to 34V and can handle an input voltage up to 40V. The device includes a wide range of application-specific features, such as variable output voltage, selectable current limit, thermal shutdown, adjustable switching frequency, power-on-reset, overload protection, and soft start. This ensures the device can be easily tailored to the needs of different applications.

The principal application field for the S-8337AACC-P8T1G is industrial, telecommunications, and automotive. The device is ideal for a wide range of power-to-voltage applications, including powering server processors in servers, powering CPUs and GPUs in gaming consoles, powering bus computer systems in telecommunications applications, and powering engine control modules in automotive applications. This allows designers to easily process power with the full accuracy of their voltage converters.

The working principle behind the S-8337AACC-P8T1G is simple and effective. The device integrates a low-side current sensing amplifier and a power MOSFET switch with bootstrap diode for easy implementation. This DC-DC switching controller is designed to accurately control the output voltage by varying the on-time of the MOSFET switch. The device works in two modes: pulse frequency modulation (PFM) mode and pulse width modulation (PWM) mode. When the input voltage is close to the output voltage, the device switches to PFM mode, meaning the device switches at a fixed period but with a varying duty cycle. When the input voltage is far from the output voltage, the device switches to PWM mode, meaning the device switches at a fixed frequency but with a varying duty cycle.

In conclusion, the S-8337AACC-P8T1G is a DC-DC switching controller designed to offer optimized efficiency and provide a simple solution to power system designs. By integrating a power MOSFET, a bootstrap diode, and a low-side current sensing amplifier, the device is capable of accurately controlling the output voltage. The device is ideal for a wide range of industrial, telecommunications, and automotive applications, and offers various application-specific features to ensure it can be tailored to meet the needs of different applications. With its simple and effective design, the S-8337AACC-P8T1G is an excellent choice for users looking for an efficient and reliable DC-DC switching controller.

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