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PMIC - Voltage Regulators - DC DC Switching Controllers

S-8352A30MC-K2PT2G application field and working principle

The S-8352A30MC-K2PT2G switching regulator series is a high-performance, feature-rich DC/DC power supply controller manufactured by Sharp Corporation for embedded applications. The S-8352A30MC-K2PT2G series regulator is a high efficiency, low power and low noise switching regulator, which is specially designed to target applications with low input voltage and high output current, such as power supplies and peripherals of navigation systems, medical equipment and industrial controllers.

The S-8352A30MC-K2PT2G is designed to regulate the output voltage and current of a single output switching regulator by modulating the frequency of the switching wave and the duty ratio. The overall topology utilized is a buck-boost converter, which uses a synchronous rectifier to improve efficiency. An error amplifier is used to maintain the constant regulation of the output voltage. The combination of on-chip MOSFETs and current sensing technique allows further optimization of the converter output power and efficiency.

The maximum duty cycle of the S-8352A30MC-K2PT2G is 99%, allowing it to operate with a wide input voltage range. At the same time, the feedback control loop maintains constant output voltage and current. This is achieved using a reference voltage, an error amplifier and a voltage divider. The error amplifier controls the frequency of the switching wave, while the voltage divider adjusts the duty cycle.

The output power of the S-8352A30MC-K2PT2G can be adjusted from 0.05 to 100W, and is available in a 3-pin package, making it easily integrated into a wide range of applications. In addition, the S-8352A30MC-K2PT2G includes unique features such as a maximum safety setting, temperature protection and EMI filter capability.

In summary, the S-8352A30MC-K2PT2G switching regulator series is an advanced and reliable DC/DC power supply controller for low input voltage, high output current devices. Its high efficiency, low noise and low power operation, combined with its range of features and 3-pin package, make it the perfect choice for a wide range of embedded applications.

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